A system for telecommunications cable equipment mounting, the system including a rack including a frame, a bracket, a chassis, and a latch. The frame includes a frame opening. The bracket is attachable to the frame at the frame opening. The chassis forms a body including sidewalls separated from one another along a width direction and extending along a transverse direction. The latch is configured to selectively lock and release the chassis relative to the bracket. The bracket includes a bracket wall extending co-directional to the sidewalls. The wall forms a guide slot extending co-directional to the sidewalls, the wall forming an opening. The latch includes a lock tab configured to extend into the opening at the bracket. The latch includes a user interface tab configured to articulate the lock tab in and out of the opening.
This semiconductor optical element comprises: a substrate; and a laminate in which a semiconductor layer of a first conductivity type, an active layer, and a semiconductor layer of a second conductivity type are laminated in the stated order from the substrate side. At least one of the semiconductor layer of the first conductivity type and the semiconductor layer of the second conductivity type has a first waveguide layer and a second waveguide layer. The second waveguide layer has a higher doping concentration than the first waveguide layer and is disposed between the first waveguide layer and the active layer.
An optical fiber cable includes a core including an optical fiber, a restricting member longitudinally attached to and covering the core, a sheath covering the restricting member, and a ripcord disposed between the sheath and the core and between a first part of the restricting member and a second part of the restricting member.
A system for telecommunications cable equipment mounting, the system including a rack including a frame, a bracket, a chassis, and a latch. The frame includes a frame opening. The bracket is attachable to the frame at the frame opening. The chassis forms a body including sidewalls separated from one another along a width direction and extending along a transverse direction. The latch is configured to selectively lock and release the chassis relative to the bracket. The bracket includes a bracket wall extending co-directional to the sidewalls. The wall forms a guide slot extending co-directional to the sidewalls, the wall forming an opening. The latch includes a lock tab configured to extend into the opening at the bracket. The latch includes a user interface tab configured to articulate the lock tab in and out of the opening.
An adapter (2) comprises: an inner socket (30) that engages with a first optical connector (100); a housing (C) that houses the inner socket (30) and engages with a second optical connector (200); and a biasing part (40) that biases the inner socket (30) toward the second optical connector (200) by a third biasing force to the housing (C). The difference between a first biasing force of the first optical connector (100) and a second biasing force of the second optical connector (200) is larger than the difference between the third biasing force and the second biasing force.
This semiconductor package comprises a semiconductor substrate, at least two analog circuit regions, a digital circuit region, and a plurality of conductor parts. The digital circuit region is provided between the two analog circuit regions and is disposed so as to overlap the center line of the semiconductor substrate in plan view. The plurality of conductor parts are electrically connected to a digital circuit in the digital circuit region and are arranged so as to form a plurality of lines along the center line. The plurality of conductor parts include a plurality of control signal conductor parts for controlling a first analog circuit and a second analog circuit. The plurality of control signal conductor parts are arranged in a line along the center line.
Provided is an auxiliary tool comprising: a first housing; and a second housing capable of moving relative to the first housing. The first housing comprises: a first opening that opens toward an adapter, and that causes distal ends of a plurality of connectors to protrude toward the adapter; a second opening that opens toward the second housing; and an oscillating part that is capable of oscillating. The oscillating part has a plurality of release parts that respectively contact contact parts of the plurality of connectors when the first housing separates from the adapter. The plurality of release parts are arranged side-by-side in a parallel direction. An oscillation center of the oscillating part is positioned at an end of the oscillating part in the parallel direction, and when a distal end section of the oscillating part oscillates in a direction away from the contact parts of the connectors, a moment which causes the oscillating part to oscillate in a direction in which the connectors are removed from the adapter acts on the oscillating part.
An optical connector cleaning tool that cleans a connection end surface of an optical connector includes a cleaning shaft that includes a pressing surface that presses a cleaning element having a belt shape against the connection end surface and holds the cleaning element turned back at the pressing surface, a supply part that supplies the cleaning element to the pressing surface via a supply path, and a collection part that collects the cleaning element from the pressing surface via a collection path. The cleaning shaft further includes a first main surface and a second main surface opposite to the first main surface. The supply path and the collection path are along the first and second surfaces. The optical connector cleaning tool further includes a path reversing part that reverses the supply path and the collection path between the first main surface and the second main surface.
An optical connector cleaning tool (100) according to the present invention comprises: a cleaning shaft (160) that has, at a leading end thereof, a cleaning head (170) around which a cleaning body (105) is wound and which has a pressing surface (171a) that presses the cleaning body (105) against a connection end surface (12) of an optical connector (10); a guide nozzle (190) that accommodates the cleaning shaft (160) therein; and a case (120) that accommodates a base end portion of the guide nozzle (190) therein such that the guide nozzle (190) is capable of relative movement. The guide nozzle (190) and the case (120) are electrically conductive. The guide nozzle (190) is provided with a leaf spring part (198) that is in contact with the case (120) and presses the case (120), and the guide nozzle (190) and the case (120) are electrically connected through the leaf spring part (198).
An optical connector cleaning tool (100) is provided with: a cleaning shaft (160) provided with, at the tip thereof, a cleaning head (170) around which a cleaning body (105) is wound; a guide nozzle (190) that accommodates the cleaning shaft (160); and a case (120) that accommodates the base end portion of the guide nozzle (190) such that the guide nozzle (190) is allowed relative movement. The cleaning head (170), the guide nozzle (190), and the case (120) have conductivity. The cleaning head (170) and the guide nozzle (190) are electrically connected due to the cleaning head (170) and the guide nozzle (190) being partially in contact with each other. The guide nozzle (190) and the case (120) are electrically connected due to the guide nozzle (190) and the case (120) being partially in contact with each other.
A cable clamp assembly for a telecommunication enclosure includes a cam actuator including a cam fastener passage at which a cam fastener is receivable. The cam fastener includes a member passage into which a threaded member is receivable. A first housing includes a member passage, a cable passage, and a channel, the channel configured to receive the cam actuator and position the member passages at the first housing and cam actuator in alignment. A second housing includes a member passage, a cable passage, and an attachment arm, the attachment arm including an attachment member configured to couple to the enclosure. An insert disposable between the first housing and the second housing includes a member passage and a cable passage. The cable passages are aligned to receive a cable therethrough. The member passages are aligned to receive a threaded member extending from the second housing to the cam fastener.
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
F16B 2/18 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
An optical connection unit connected to a photonic integrated circuit, includes: optical fibers having different mode field diameters; a ferrule that holds the optical fibers; a ferrule-side microlens array that transmits optical signals from distal end surfaces of the optical fibers held by the ferrule toward the photonic integrated circuit; and light adjustment units in the ferrule-side microlens array that respectively correspond to the optical fibers. The light adjustment units vary in shape depending on the mode field diameters such that the optical signals transmitted through the light adjustment units become parallel light.
This optical connector comprises: a ferrule having a plurality of fiber holes arranged in a first direction and having a connection end face in which the plurality of fiber holes open; a support member disposed on the side opposite the connection end face with respect to the ferrule; a spring for impelling the support member towards the connection end face side; and a housing that accommodates a section of the ferrule, the support member, and the spring. When viewed from the longitudinal direction of the fiber holes, the length of the spring in the first direction is longer than the length of the spring in a second direction orthogonal to the first direction. The housing includes an accommodation hole that accommodates the spring, and the inner dimension of the accommodating hole in the second direction gradually increases towards the distal end side.
An optical connector (2) is provided with: an optical cord (20) that has at least one optical fiber (22); a ferrule (10) that has a connection end surface (11) and a fiber hole (11a) that opens to the connection end surface (11); a housing (30) that accommodates the ferrule (10) in a state in which the connection end surface (11) is exposed, and that has an engagement part (31) that can engage with an adapter (100); a coupling (40) that surrounds the housing (30) and engages and disengages the housing (30) and the adapter (100) by moving relative to the housing (30); and a holding member (60) that is fixed to the optical code (20) and can transmit force to the coupling (40).
An optical fiber cable (1) comprises: a core (10) that includes optical fibers (11); a first protective layer (20) that covers the core (10); and a second protective layer (50) that covers the first protective layer (20). At least one integrated region (20a) that is in pressure-contact with or fixed to the second protective layer (50) and at least one non-integrated region (20b) that is not in pressure-contact with or fixed to the second protective layer (50) are provided to the outer circumferential surface (20s) of the first protective layer (20).
ABSTRACT An aspect of the present disclosure is directed to a connector collar for a fiber optic closure. The connector collar is insertable into a cavity at a base of the fiber optic closure. The connector collar includes a shaft extending along a longitudinal axis, the shaft forming a passage extending from a first end and a second end. The passage is configured to receive an optical ground wire (OPGW) cable therethrough. The shaft forms a plurality of flanges extending outward along a radial axis to inhibit movement of the collar within the base along the longitudinal axis. The shaft forms a groove configured to position the connector collar relative to the base of the fiber optic closure. Date regue/Date received 2024-01-16
The optical fiber cable (1A) includes a core (10) including an optical fiber (11), a restricting member (20) longitudinally attached to the core (10) and covering the core (10), a sheath (40) covering the restricting member (20), and a ripcord (60) located between the sheath (40) and the core (10), in which the ripcord (60) is located between a first part (21) and a second part (22) of the restricting member (20).
This optical connector comprises: a ferrule having a plurality of fiber holes arranged in a first direction and a connection end surface on which the plurality of fiber holes are open; a support member disposed on the opposite side of the ferrule to the connection end surface; a spring that biases the support member to the connection end surface side; and a housing that accommodates a portion of the ferrule, the support member, and the spring. When viewed from the longitudinal direction of the fiber hole, the length of the spring in the first direction is greater than the length of the spring in a second direction orthogonal to the first direction. The support member has a ferrule support part that supports the ferrule, and an elastic part disposed on the base end side from the ferrule support part. The ferrule support part can swing in the second direction around the elastic part.
Provided is an antenna device including: an antenna that performs at least one of transmission and reception of an electromagnetic wave; and a meta-lens through which the electromagnetic wave is transmitted. The meta-lens includes a plurality of unit cells arranged two-dimensionally. Each of the plurality of unit cells has: a plurality of lens layers arranged so as to overlap in a plan view; and a conductive pattern formed in each of the plurality of lens layers.
H01Q 19/06 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
H01Q 15/02 - Refracting or diffracting devices, e.g. lens, prism
A cover for a utility enclosure includes a cover having a top, a bottom, a front side, a rear side, a left side, and a right side, defining an interior. The cover further includes a plurality of ribs in the interior dividing the interior into a plurality of spaces. The cover further includes the top having one or more air vents. The cover further includes the air vents having channels constructed to vent air in the spaces to an exterior of the cover, thereby preventing flotation of the cover in water.
An optical fiber cable includes: a multi-core optical fiber including a cladding and cores in the cladding; and a piece of arrangement information associated with the multi-core optical fiber and with a core arrangement of the cores in a cross-section of the multi-core optical fiber.
An organizer assembly includes a primary basket extending along a longitudinal axis between a first open end and a second closed end. The organizer assembly includes a backplate extending between a front wall and a rear wall, wherein a plurality of entry/exit slots are defined at the rear wall. The backplate further includes a plurality of positioning assemblies. The organizer assembly includes a hinge assembly connecting the backplate to the primary basket, wherein the backplate is rotatable relative to the primary basket at the hinge assembly about a lateral axis. The organizer assembly includes a plurality of organizer trays, each of the plurality of organizer trays rotatably connectable to the backplate at one of the plurality of positioning assemblies. Each of the plurality of positioning assemblies causes the connected one of the plurality of organizer trays to be selectively positionable in one of a plurality of rotational positions.
This phased array antenna evaluation device is provided with: a first support body that supports a phased array antenna in which a plurality of radiation elements are formed in an array; a second support body that supports a reference antenna disposed so as to face a first main surface of the phased array antenna; and a guide frame that allows the first support body to move toward or away from the second support body, allows the second support body to move toward or away from the first support body, or allows the first support body to move toward or away from the second support body and allows the second support body to move toward or away from the first support body.
H01Q 3/08 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
An optical fiber preform includes: a clad rod having a hole extending along a longitudinal direction of the optical fiber preform and a clad glass body that constitutes at least a part of a clad in an optical fiber, where the hole is open at both ends of the clad rod; and a glass rod including a predetermined glass body that constitutes a predetermined portion different from the clad in the optical fiber, where the glass rod is disposed in the hole. The hole has a diameter that increases from a first side of the optical fiber preform in the longitudinal direction toward a second side of the optical fiber preform in the longitudinal direction.
A consolidation terminal includes a body defining an interior, a stub cable port defined in the body, and a stub cable extending through the stub cable port, the stub cable including an optical fiber. The consolidation terminal further includes a splitter disposed in the interior, wherein the optical fiber is connected as an input to the splitter. The consolidation terminal includes a plurality of connector ports defined in the body, at least one single fiber connector disposed within at least one of the plurality of connector ports, the at least one single fiber connector connected to an output optical fiber from the splitter, and at least one multi-fiber connector disposed within at least one of the plurality of connector ports, the at least one multi-fiber connector connected to a plurality of output optical fibers from the splitter.
This multilayered substrate comprises a substrate body and a high-frequency IC. The substrate body comprises a mounting surface pad layer, a conductor layer, a first ground layer, a high-frequency layer, and a second ground layer, in the stated order. The mounting surface pad layer, the conductor layer, the first ground layer, the high-frequency layer, and the second ground layer are laminated with a respective dielectric layer therebetween. Bumps include a mounting surface bump electrically connected to the mounting surface pad layer, a conductor bump electrically connected to the conductor layer, a first ground bump electrically connected to the first ground layer, a high-frequency bump electrically connected to the high-frequency layer, and a second ground bump electrically connected to the second ground layer. The thickness of the thinner dielectric layers among those on the first ground layer side and the second ground layer side of the high-frequency layer is greater than the thickness of the dielectric layer between the conductor layer and the mounting surface pad layer that is the closest to the mounting surface.
H01L 23/12 - Mountings, e.g. non-detachable insulating substrates
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q 23/00 - Antennas with active circuits or circuit elements integrated within them or attached to them
28.
FIBER BUNDLE CONNECTOR AND FIBER CONNECTOR MANUFACTURING METHOD
A fiber bundle connector includes a plurality of optical fibers and a ferrule that has a connection end surface and a fiber hole that extends to the connection end surface and into which the plurality of optical fibers are inserted. On at least the connection end surface, a plurality of optical fibers inserted into the fiber hole are most densely disposed such that adjacent optical fibers are in contact with each other, and all the optical fibers located at an outermost periphery among the plurality of optical fibers disposed most densely are pressed on an inner wall of the fiber hole to cause the inner wall to elastically and plastically deform.
A multi-fiber optical connector includes: a ferrule that includes a connection end provided with a connection end surface, a base end located on a side opposite to the connection end, and a plurality of fiber holes through which a plurality of optical fibers are insertable toward the connection end surface; a first member that is disposed to face the base end of the ferrule in a longitudinal direction in which the fiber holes extend; a biasing member that is disposed between the first member and the ferrule in the longitudinal direction, and biases the ferrule toward the connection end; and a spring push that presses the first member toward the connection end via rotational movement.
An optical fiber includes a core, a helical section in which the core has a helical shape, and a first end part that is included in either a first non-helical section in which the core has a linear shape or a first gently helical section in which a total number of helices of the core per unit length is smaller than that in the helical section.
An optical computing device includes an image sensor including one or more light receiving cells, one or more optical modulation elements each including cells that each have a phase-modulation amount, an optical splitter element that splits signal light into monitoring signal light entering the image sensor and computing signal light entering the one or more optical modulation elements, and a controller that independently sets the phase-modulation amount of each of the cells in accordance with an intensity of the monitoring signal light detected by a corresponding one of the light receiving cells of the image sensor.
G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour
An antenna module includes a first substrate, a second substrate, and a heat dissipation structure. An RFIC (first IC) is provided on a facing surface (first mounting surface) of the first substrate facing the heat dissipation structure. The RFIC is thermally in contact with the heat dissipation structure and processes a high frequency signal. A BBIC (second IC) is provided to be thermally in contact with the heat dissipation structure and to process a baseband signal on a facing surface (second mounting surface) of the second substrate facing the heat dissipation structure. A connecting portion which electrically connects adjacent end portions of the first substrate and the second substrate, is provided. An angle θ between the facing surfaces is a right angle or an acute angle.
A multicore optical ferrule includes a main body including a connection end surface configured to connect to a connection target and insertion holes into which optical fibers are respectively inserted. Each of the insertion holes extends from the connection end surface toward an inside of the main body. Each of the insertion holes has a first inner diameter portion open to the connection end surface and a second inner diameter portion having a diameter larger than a diameter of the first inner diameter portion. An inner wall of the first inner diameter portion of each of the insertion holes includes micro holes.
A cable manifold assembly and a telecommunications closure are provided. The cable manifold assembly includes a body having a side wall and a base wall, the side wall and base wall forming an interior volume, the base wall forming an insert opening, and the body forming a pathway extending from the insert opening. An insert including a member is extendable into the insert opening and pathway at the body. The insert forms a channel at the member. The channel diverges from a closed end proximate to the insert opening to an open end distal to the closed end. The channel is configured to receive a cable at the channel from the open end. A cover is configured to selectively attach to the body to obscure the open end.
An optical fiber processing tool (1) is provided with: a fiber holder (10) that holds an optical fiber (F) in a state in which an end part of the optical fiber (F) is extended to one side; a fiber cutting unit (70) that cuts the optical fiber (F); a connector holder (20) that holds an optical connector (100); and a guide rail (32) that guides the movement of the fiber holder (10). The fiber cutting unit (70) and the connector holder (20) are disposed at an interval in an orthogonal direction (Y) perpendicular to the extension direction of the optical fiber (F). The fiber holder (10) is guided by a guide rail (32) so as to be capable of moving linearly in the orthogonal direction (Y) between an optical fiber cutting position (P11) where the fiber cutting unit (70) cuts the optical fiber (F) and a connection position (P12) where the optical connector (100) is connected to the optical fiber (F).
An optical fiber processing tool (1) comprises: a fiber holder (10) that holds an optical fiber (F) in a state in which an end part of the optical fiber (F) extends in one direction; a connector holder (20) that holds an optical connector (100); a wedge (80) that can be inserted into and removed from a mechanical splice (103) of the optical connector (100), and that enables connection between the optical fiber (F) and a built-in fiber (102) which is built into the optical connector (100); a wedge operating member (90) that can move relative to the connector holder (20); and a linkage mechanism (83) that removes the wedge (80) from the mechanical splice (103) in conjunction with relative movement of the wedge operating member (90).
An antenna module includes a first substrate that includes a first antenna element and a feeding line to a second antenna element and configured to handle a high-frequency signal in a millimeter wave band, a second substrate arranged to overlap a portion of the first substrate in plan view and configured to handle a baseband signal having a frequency band lower than that of the high-frequency signal, and a metal housing that includes a first accommodation space configured to accommodate a RFIC, a second accommodation space configured to accommodate a BBIC, and a shielding wall provided between the first accommodation space and the second accommodation space, the shielding wall is arranged to overlap the feeding line in plan view, and at least one of the shielding wall and the first substrate includes a non-interference portion configured to reduce interference between the shielding wall and the feeding line.
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
This semiconductor package comprises an RFIC, a multilayer substrate, and an RF signal path. The RFIC has an RF pad for inputting and outputting an RF signal. The multilayer substrate has a first outer surface facing the RF pad and a second outer surface opposite to the first outer surface. The multilayer substrate includes three or more conductor layers. The RF signal path propagates the RF signal. The RF signal path includes an RF terminal, an RF external terminal, an RF redistribution wire, and a plurality of filled vias. The RF terminal electrically connects the RF pad and a conductor provided on the first outer surface. The RF external terminal is electrically connected to a conductor provided on the second outer surface. The RF redistribution wire has a first end part overlapping the RF terminal in a plan view, and a second end part overlapping the RF external terminal in the plan view. The RF redistribution wire is provided only in one of the conductor layers. The plurality of filled vias are located in the multilayer substrate.
An optical fiber processing tool (1) comprises: a coating stripper (40) that removes a portion of the coating of an optical fiber (F); a fiber cutting part (70) the position of which is fixed with respect to the coating stripper (40); and a fiber holder (10) that holds the optical fiber (F). The coating stripper (40) and the fiber cutting part (70) move relative to the fiber holder (10), whereby the coating stripper (40) removes a portion of the coating to expose a bare part (f1) of the optical fiber (F), and the exposed bare part (f1) is cut by the fiber cutting part (70).
This optical fiber comprises a core region and a cladding surrounding the core region. A dopant for changing the refractive index is added to at least one among the core region and the cladding. In a cross-section perpendicular to the longitudinal direction of the optical fiber, the concentration distribution of the dopant is rotationally asymmetric with respect to the center of the cladding. In the cross-section, the following formula (1) is satisfied.
Replacement conductor connector accessories and methods are provided. A replacement conductor connector accessory includes an outer body defining an outer body interior, the outer body interior extending along a longitudinal axis, wherein a length of the outer body interior is defined along the longitudinal axis. The replacement conductor connector accessory further includes a filler tube disposed within the outer body interior and extending along a portion of the length, the filler tube defining a filler tube interior, wherein a length of the filler tube interior is defined along the longitudinal axis. The replacement conductor connector accessory further includes a filler rod disposed with the filler tube interior. The replacement conductor connector accessory further includes a core grip disposed within the outer body interior.
H02G 1/14 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for joining or terminating cables
An optical switch that switches an optical path of signal light obtained by modulating carrier light by a control signal and a data signal, includes an optical modulation element that reflects or refracts the signal light and includes cells each having an independently set phase modulation amount with which the signal light is emitted in a direction corresponding to a ratio of a period of the control signal to a period of the carrier light.
Lateral crystal-differentiated and functional-differentiated structures can be grown in a single epitaxial growth step. Such structures can be used to form integrated magnetically- controlled pixels. The pixels can be implemented as magnetooptic pixels for a spatial light modulator. A controlling magnetic flux can be supplied to active elements in each magnetically-controlled pixel by a magnetic conduit comprising a high-permeability material. Several different magnetically-controlled, integrated-circuit devices are possible.
G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics
B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
G02F 1/09 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
45.
SPATIAL LIGHT MODULATOR AND OPTICAL COMPUTING DEVICE
A spatial light modulator includes unit cells each comprising two or more adjacent microcells, wherein the microcells each have a cell size that is either less than 1 μm or equal to or smaller than a wavelength of signal light and a black matrix that surrounds the unit cells.
This wiring structure for high-frequency signals comprises a first signal line for transmitting a first high-frequency signal and a second signal line for transmitting a second high-frequency signal different from the first high-frequency signal. In a plan view, a part where the first signal line and the second signal line intersect is an intersection section, the first signal line and the second signal line are formed in different layers in the intersection section, and the intersection section is provided with a first ground section that contains said intersection section in the plan view and is arranged between the first signal line and the second signal line in the plan view direction.
An optical computing device includes a spatial light modulator that carries out binary modulation of carrier light for each cell and generates first signal light representing a first wave number space image and an optical modulation element group including two or more optical modulation elements that sequentially act on the first signal light.
G06E 1/04 - Devices for processing exclusively digital data operating upon the order or content of the data handled for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
The seat heater 1A includes a base material 10. The base material includes a first U-shaped part 20 and a second U-shaped part 30 provided inside the first U-shaped part. The first U-shaped part includes a pair of first extension parts 21a, 21b, and the second U-shaped part includes a pair of second extension parts 31a, 31b extending in parallel with the first extension parts. First meandering parts 22a, 22b of the first extension parts include first projections 221a, 221b projecting toward the outside of a seat heater 1 in a plan view, and second projections 222a, 222b projecting toward the inside of the seat heater 1 in a plan view. Second meandering parts 32a, 32b of the first extension parts include third projections 321a, 321b projecting outward in a plan view, and fourth projections 322a, 322b projecting inward in a plan view.
A47C 7/74 - Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
H05B 3/20 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
H05B 3/34 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
49.
ESTIMATION METHOD, MEASUREMENT METHOD, AND INFORMATION PROCESSING DEVICE
An estimation method includes estimating, using a relational equation, a measurement variation in a group delay from one or both of a loss in a target optical fiber and a power of a target light source. The group delay occurs when light generated by the target light source is inputted into the target optical fiber.
A polarization maintaining fiber includes a core, paired stress applying parts disposed on both sides of the core, and a clad encompassing the core and the paired stress applying parts. When the polarization maintaining fiber has a fiber length of 2 m and a bend radius of 140 mm, the polarization maintaining fiber has a cut-off wavelength equal to or greater than 1.41 μm and less than 1.55 μm, and when the polarization maintaining fiber has a bend radius of 5 mm and twists at a rate of one rotation per 31.4 mm of fiber length, the polarization maintaining fiber has a bending loss equal to or less than 7 dB at a wavelength of 1.55 μm.
This heat pipe comprises: a container in which a working fluid is sealed; a wick that is accommodated in the container and is formed of metal powder; an evaporation unit that is provided in the longitudinal direction of the container and evaporates the working fluid; and a condensation unit that is provided in the longitudinal direction of the container, is provided at a location different from the evaporation unit, and condenses the working fluid. A plurality of grooves are formed in the longitudinal direction on the inner circumferential surface of the container. The wick includes a first wick part provided in the evaporation unit, and a second wick part provided in the condensation unit. The average particle diameter of first metal powder, that is the metal powder constituting the first wick unit, is smaller than the average particle diameter of second metal powder that is the metal powder constituting the second wick unit.
F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
52.
FIBER OPTIC WIRING HARNESS AND SYSTEM AND METHOD FOR FIBER OPTIC ROUTING
A coupling assembly and method for assembling a fiber optic wiring harness are provided. The coupling assembly includes a coupling body forming a first fiber passage extending through a pair of coupling body ends. The coupling body forms a second fiber passage opening extending from the first fiber passage. An attachment body is selectively connectable to the coupling body at the second fiber passage opening. The attachment body at least partially forms a second fiber passage extending from the second fiber passage opening through a pair of attachment body openings. The coupling body and attachment body include an attachment interface configured to selectively connect the attachment body to the coupling body to position at least one of the pair of attachment body openings adjacent to the second fiber passage opening.
A cable reel (10) includes a first end flange (14), a second end flange (14), and a core body (12) that extends between the first end flange and the second end flange. At least one of the first end flange and the second end flange is removably couplable to the core body. The cable reel further includes at least one clip (28) removably couplable to the core body. The at least one clip includes a coupling feature (32). The cable reel further includes a middle flange (26) that partially surrounds the core body and is attached to the coupling feature of the one or more clips.
A polarization maintaining fiber includes a core, paired stress applying parts disposed on both sides of the core, and a clad encompassing the core and the paired stress applying parts. When the polarization maintaining fiber has a fiber length of 2 m and a bend radius of 140 mm, the polarization maintaining fiber has a cut-off wavelength equal to or greater than 1.20 μm and less than 1.31 μm. When the polarization maintaining fiber has a bend radius of 5 mm and twists at a rate of one rotation per 31.4 mm of fiber length, the polarization maintaining fiber has a bending loss equal to or less than 6.6 dB at a wavelength of 1.31 μm.
A pressure sensitive sensor unit includes: a first pressure sensitive sensor with a first output that changes according to a magnitude of an applied load; a second pressure sensitive sensor with a second output that changes according to the magnitude of the applied load; a plate member arranged so as to include the first and second pressure sensitive sensors in a plan view; a first load transmitting member interposed between the first pressure sensitive sensor and the plate member; and a second load transmitting member interposed between the second pressure sensitive sensor and the plate member. The first load transmitting member transmits a load belonging to a first load range to the first pressure sensitive sensor. The second load transmitting member transmits a load belonging to a second load range to the second pressure sensitive sensor. The second load range is larger than the first load range.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
An optical connector cleaning tool (1) comprises: a cleaning shaft (20) having a pressing surface (211) that presses a cleaning body (5) against a connection end face (111) of an optical connector (100); a housing (60) that holds the cleaning shaft so as to allow relative movement; a first bobbin (31) that supplies the cleaning body; a second bobbin (37) that collects the cleaning body; first and second rollers (33, 34) that sandwich the cleaning body between the pressing surface and the second bobbin; a first rotary drive mechanism (91) that rotationally drives the first roller in association with the relative movement of the cleaning shaft, whereby the cleaning body is drawn out from the first bobbin by the first and second rollers; and a second rotary drive mechanism (92) that rotationally drives the second bobbin in association with the relative movement of the cleaning shaft, whereby the cleaning body drawn into the first and second rollers is collected on the second bobbin.
An optical switch that switches an optical path of signal light obtained by modulating carrier light by a control signal and a data signal includes a mirror and a half mirror, an optical modulation element that reflects or refracts the signal light reflected by the mirror and the half mirror and includes cells each having an independently set phase modulation amount, a light detector that detects, at once, intensities of beams of the signal light passing through the half mirror and reflected by the mirror and the half mirror different times, and a controller that decodes the control signal from the detected intensities and sets the independently set phase modulation amount of each of the cells such that the signal light is emitted in a direction corresponding to the control signal.
Fiber optic microcables and cable assemblies are provided. A microcable includes a central inner jacket formed from a flame retardant material, and a plurality of optical fibers disposed within the inner jacket, wherein a total number of optical fibers in the fiber optic microcable is greater than or equal to 145. The microcable further includes a plurality of first strength members disposed within the inner jacket, an outer jacket surrounding the central inner jacket, the outer jacket formed from a flame retardant material, and a plurality of second strength members disposed between the outer jacket and the central inner jacket, a fiber density of the cable is between about 3.1 fibers per square millimeter and about 8.38 fibers per square millimeter.
A butt closure base includes a base housing extending along a longitudinal axis between a first outer surface and a second outer surface, the base housing defining a plurality of cavities between the first and second outer surfaces, the plurality of cavities aligned in an annular array. A first gel is disposed in each of the plurality of cavities. The butt closure base further includes a plurality of wedge assemblies, each of the plurality of wedge assemblies removably insertable into one of the plurality of cavities. Each of the plurality of wedge assemblies includes an outer cover, a second gel, and a main pressure plate in contact with the second gel. The main pressure plate is movable along the longitudinal axis to apply pressure to the second gel.
In order to inhibit a swollen hydrogel from moving during patterning by light irradiation, a production method (M11) for a hydrogel structure includes a patterning step (S14) in which a hydrogel swollen with water is irradiated with light to perform patterning, wherein in the patterning step (S14), at least some of the side surfaces of the hydrogel are supported by a support member formed on the main surface.
This bias voltage generation circuit comprises a first circuit and a second circuit connected in series to a voltage source. The bias voltage generation circuit outputs a bias voltage obtained by dividing a power supply voltage by a first resistance value of the first circuit and a second resistance value of the second circuit. Either or both of the first resistance value and the second resistance value have a predetermined tendency of change with respect to change in the ambient temperature.
An optical connector cleaning tool 1 is provided with: a cleaning shaft 20 having a pressing face 211 for pressing a cleaning body 5 against a connection end face 111 of an optical connector 100; a housing 60 that holds the cleaning shaft 20 such that the cleaning shaft 20 is relatively movable along an axial direction thereof; a feeding bobbin 33 that is housed inside the housing 60 and that feeds the cleaning body 5 to the pressing face 211; a winding bobbin 31 that is housed inside the housing 60 and that withdraws the cleaning body 5 from the pressing face 211; and a locking mechanism 94 for locking the feeding bobbin 33 when the relative position of the cleaning shaft 20 with respect to the housing 60 is displaced in a +Y direction and for unlocking the feeding bobbin 33 when the relative position of the cleaning shaft 20 with respect to the housing 60 is displaced in a -Y direction.
B08B 1/36 - Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members rotating about an axis orthogonal to the surface
This phase shifter comprises a first row, a second row, a connection part, and a first ground plane. The first row has a plurality of digital phase shift circuits, each of which includes a loop line and which are cascade-connected in the longitudinal direction. The second row has the plurality of digital phase shift circuits that are cascade-connected in the longitudinal direction and extends in parallel with the first row so as to overlap the first row when viewed from an intersecting direction. The connection part electrically connects a first end part of the first row and a first end part of the second row. The first ground plane has a recess and surrounds the first row, the second row, and the connection part in plan view. The first ground plane and the loop lines are not in contact with each other.
This output matching circuit electrically connects a digital phase-shift circuit and an output transmission line. The digital phase-shift circuit has a circuit-side signal line, a first line, a second line including a loop line, a first grounded conductor, a second grounded conductor, a first electronic switch, and a second electronic switch. The output transmission line has an output-side signal line and an output-side grounded conductor. The output matching circuit comprises a signal line connected to the circuit-side signal line and the output-side signal line, and a return line electrically connected to the second grounded conductor and the output-side grounded conductor. The return line is longer than the signal line.
A fiber optic housing including a receptacle and a retainer clip fixable to the receptacle at one or more of a plurality of apertures. The receptacle includes a plurality of sidewalls extending along a longitudinal axis, a base wall extending from the plurality of sidewalls, and an end wall extending along a lateral axis between the plurality of sidewalls. The retainer clip forms a pathway extending along the longitudinal axis between a first clip end and a second clip end. The first clip end and the second clip end form openings into the pathway. A cable is extendable into the receptacle through the pathway formed at the retainer clip.
This variable attenuator comprises: a plurality of signal transmission paths in which attenuation amounts of transmission signals differ from one another; semiconductor switches which are respectively provided to the plurality of signal transmission paths, and switch the plurality of respective signal transmission paths to a transmission state or a non-transmission state; and an impedance correction circuit which is provided in one of the plurality of signal transmission paths having a relatively large attenuation amount, and corrects the impedance so as to reduce leakage of a transmission signal in an open semiconductor switch provided in one signal transmission path having the smallest attenuation amount among the plurality of signal transmission paths.
Blowable cables and temporary connector assemblies are provided. A blowable cable includes an adhesive provided in the channel of a ferrule flange, wherein an exposed portion of a plurality of strength yarns and an end of an outer jacket are bonded to the ferrule flange by the adhesive. A temporary connector assembly includes a temporary rear housing, the temporary rear housing including a body and a channel defined along the longitudinal axis through the body, the channel extending between and through a first end and an opposing second end of the temporary rear housing, the temporary rear housing further including a movable latch mounted to the body, the movable latch including a tab. The tab is removably insertable into a slot of a front housing when the rear housing is assembled to the front housing.
An optical fiber assembly includes: bundled optical fiber units, each of which is configured by stacking optical fiber ribbons. A stacked state of the optical fiber ribbons in an optical fiber unit of the bundled optical fiber units is collapsed such that a ribbon surface of at least one of the optical fiber ribbons configuring the optical fiber unit is bent, in a cross section of the optical fiber assembly orthogonal to a longitudinal direction of the optical fiber assembly at least at a first position in the longitudinal direction. The bundled optical fiber units include inner layer fiber units located on an inner side in a radial direction of the optical fiber assembly, and outer layer fiber units located on an outer side in the radial direction of the optical fiber assembly relative to the inner layer fiber units, in a cross section of the optical fiber assembly.
An optical fiber assembly includes: bundled optical fiber units, each of which is configured by stacking optical fiber ribbons. A stacked state of the optical fiber ribbons in an optical fiber unit of the bundled optical fiber units is collapsed such that a ribbon surface of at least one of the optical fiber ribbons configuring the optical fiber unit is bent, in a cross section of the optical fiber assembly orthogonal to a longitudinal direction of the optical fiber assembly at least at a first position in the longitudinal direction. The bundled optical fiber units include one or more first fiber units located on a neutral line of bending of the optical fiber assembly and a second fiber unit located farthest from the neutral line, in a cross section of the optical fiber assembly orthogonal to the longitudinal direction.
The present invention comprises: a first transistor provided with a first input terminal to which a first circuit having a first impedance is connected, a first output terminal to which a reference current source is connected, and a first control terminal to which the first output terminal is connected; and a second transistor provided with a second control terminal connected to the first control terminal, a second input terminal to which a second circuit having a second impedance is connected, and a second output terminal for outputting an output current corresponding to the reference current of the reference current source. Temperature characteristics are set so that the output current has a predetermined change trend with respect to the ambient temperature in at least one of the first impedance of the first circuit and the second impedance of the second circuit.
An adaptor assembly for a telecommunications module. The adaptor assembly includes a carrier having a pair of side- walls and a lateral wall extending between the pair of sidewalls. The sidewalls include a first detent and a second detent distal to the first detent. The first detent forms an open position of the carrier extending from the telecommunications module, and the second detent forms a closed position of the carrier extended into the telecommunications module. The carrier is configured to receive a telecommunications adaptor between the pair of sidewalls and the lateral wall.
A patch panel includes a cabinet and a cassette. A pair of cassette guides is positioned within the cabinet. The pair of cassette guides are spaced along a lateral direction such that the cassette is receivable between the pair of cassette guides. The cassette is slidable along a transverse direction on the pair of cassette guides. At least one of the pair of cassette guides includes a first rail and a second rail that are spaced apart along a vertical direction. The cassette is slidable along the transverse direction between the first and second rails. Each end of the first rail is cantilevered such that each end of the first rail is moveable along the vertical direction.
A fiber laser device (1) comprises: a first excitation light source (12) that emits first excitation light; a first amplification optical fiber (11) to which an active element that absorbs the first excitation light has been added and which amplifies and emits light of a first wavelength; a second amplification optical fiber (21) to which the same active element as the active element added to the first amplification optical fiber (11) has been added, and which absorbs the light of the first wavelength and amplifies and emits light of a second wavelength; combiners (31), (32); and a light reduction section (60) which is provided on an optical path between the combiners (31), (32) and the first amplification optical fiber (11), transmits light from the first amplification optical fiber (11), and suppresses the transmission of light from the combiners (31), (32).
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
74.
PRODUCTION METHOD FOR HYDROGEL STRUCTURE, METHOD FOR PRODUCING OPTICAL COMPOSITE DEVICE, INTERMEDIATE FOR HYDROGEL STRUCTURE, AND OPTICAL DIFFRACTION ELEMENT
In order to improve the positional accuracy of a contracted hydrogel on the surface of a substrate, a production method (M10) for a hydrogel structure comprises a contraction step (S14) for causing a swollen hydrogel to contract on the surface of a substrate. In the contraction step (S14), a partial region of the swollen hydrogel is joined to the surface.
A region, of a forming surface (PP), corresponding to the inside of a structure to be formed is irradiated with promoting light (L1) for promoting the curing of a photocurable resin (RL) stored in a container (11), and a region (A2), of a region (A1) between the bottom plate of the container (11) and a forming table (12), on the forming table (12) side relative to the forming surface (PP) is irradated with inhibiting light (L3) for inhibiting the curing of the photocurable resin (RL). Thus, the forming resolution is improved.
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 67/00 - Shaping techniques not covered by groups , or
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
76.
METHOD FOR PRODUCING STRUCTURE, STEREOLITHOGRAPY METHOD, STEREOLITHOGRAPY DEVICE, OPTICAL DIFFRACTION ELEMENT, AND OPTICAL COMPUTATION DEVICE
In the present invention, a region corresponding to the inside of a structure to be formed is irradiated with: polymerization promoting light (L1) for promoting the polymerization of a monomer (M) stored in a container (11) together with a dye; and binding promoting light (L3) for promoting the binding of the pigment to the monomer (M). The number of times of each point is irradiated with the polymerization promoting light (L1) is set according to the two-dimensional thickness distribution of the structure to be formed, and the energy of the binding promoting light (L3) applied to each point is set according to the two-dimensional refractive index distribution of the structure to be formed.
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B29C 67/00 - Shaping techniques not covered by groups , or
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
An optical combiner includes input optical fibers and a bridge fiber. The input optical fibers each includes a core, a first cladding surrounding the core and having a refractive index lower than a refractive index of the core, a second cladding surrounding the first cladding and having a refractive index lower than the refractive index of the first cladding, and a third cladding surrounding the second cladding and having a refractive index lower than the refractive index of the second cladding. The bridge fiber has an incident surface optically coupled to the core of each of the input optical fibers and an emitting surface that emits light obtained by multiplexing the light incident from each of the input optical fibers.
An optical fiber cable including an optical fiber ribbon in a pipe, wherein the ribbon includes at least two optical fibers arranged side by side, and wherein at least two of the optical fibers are bonded intermittently along a length of the fibers.
An optical connector (1A) comprises a ferrule (10) that has a connection end surface (10a) and a fiber hole (11) that is open in the connection end surface, a plurality of optical fibers (21) that are inserted into the fiber hole, and an adhesive (30) that fixes the plurality of optical fibers to the ferrule, each of the plurality of optical fibers having a small-diameter part (21a), a large-diameter part (21b) that has a larger diameter than the small-diameter part, and a tapered part (21c) that is positioned between the small-diameter part and the large-diameter part, the adhesive including a first adhesive (31) and a second adhesive (32) having a Young's modulus smaller than that of the first adhesive, the ferrule having a first filling hole (12) communicating with the fiber hole and filled with the first adhesive, and a second filling hole (13) communicating with the fiber hole and filled with the second adhesive, the first filling hole being arranged closer to the connection end surface side than the second filling hole, the first filling hole being arranged at a position overlapping the small-diameter part in the longitudinal direction of the fiber hole, and the second filling hole being arranged at a position overlapping the small-diameter part or the tapered part in the longitudinal direction.
An optical fiber cable (1) is provided with a first optical fiber ribbon (30), a first inclusion (40), and a sheath (90) that accommodates the first optical fiber ribbon (30) and the first inclusion (40), the first optical fiber ribbon (30) being in contact with the first inclusion (40) at the tips of a plurality of protrusions (36) in an orthogonal cross-section orthogonal to the longitudinal direction of the optical fiber cable (1), and a single layer thereof surrounding the entire circumference of the first inclusion (40).
An optical connector (1A) comprises a ferrule (10) having a connection end surface (10a) and a fiber hole (11) that is open in the connection end surface (10a), a plurality of optical fibers (20) inserted into the fiber hole (11), an adhesive (30) that fixes the plurality of optical fibers (20) in the ferrule (10), and a stress relaxation material (50) having a Young's modulus smaller than that of the adhesive (30). Each of the plurality of optical fibers (20) has a small-diameter part (21a) that is inserted into the fiber hole (11), a large-diameter part (21b) that has a larger diameter than the small-diameter part (21a), and a tapered part (21c) that is positioned between the small-diameter part (21a) and the large-diameter part (21b) and has a diameter that changes along the longitudinal direction of the optical fiber (20), and the stress relaxation material (50) covers at least a portion of the small-diameter part (21c).
A digital circuit according of the invention is a digital circuit provided in a semiconductor device to control analog elements. The digital circuit includes a digital communication circuit, a random access memory, a temporary parameter store, and an output circuit. The digital communication circuit receives a control message including a command and data in one communication transaction. The random access memory stores a look-up table. The look-up table has an address and a data set corresponding to the address. The data set includes a plurality of analog-element control parameters. The temporary parameter store temporarily stores the data received by the digital communication circuit in the communication transaction. The temporary parameter store prepares a data set to be stored to one address of the look-up table. The output circuit outputs a setting-parameter.
A phased array antenna module includes a plurality of antenna elements, a storage region, a temporary parameter store, an address generation unit, and a setting unit. The storage region is configured to store more than 256 items for at least one of intensity setting values and phase setting values. The temporary parameter store temporarily store a part of an address of the storage region. The address generation unit is configured to generate an address of the storage region according to the first address bitgroup stored in the temporary parameter store and the second address bit-group. The setting unit is configured to read at least one of the intensity setting values and the phase setting values by using the address of the storage region. The setting unit is configured to set an intensity and a phase to be set in each of the antenna elements.
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
H01Q 25/00 - Antennas or antenna systems providing at least two radiating patterns
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
A wireless communication device includes a sensor control unit and a sensor unit. The sensor control unit operates in synchronization with a first clock. The sensor unit operates in synchronization with a second clock. The sensor control unit includes a counter. The counter counts rising edges of the first clock from 0 to 2M−1 (M is a natural number). The second clock rises at a rising edge of the first clock when a count value of the counter is 0 and falls at a rising edge of the first clock when the count value of the counter is M. The sensor control unit transmits a control signal to the sensor unit at a rising edge of the first clock when the count value of the counter is M.
This polarization maintaining fiber (1) is provided with a core (11), stress imparting units (12a), (12b), and a clad 13, wherein the mode field diameter at a wavelength of 1.55 μm is 10.6 μm or less, the cutoff wavelength when the fiber length is 2 m and the bending radius is 140 mm is greater than or equal to 1.24 μm and less than 1.55 μm, and at least one of (1) or (2) is satisfied. (1) In the case where the bending radius is 7.5 mm and the twist per fiber length of 47.1 mm is one turn, the macrobend loss at a wavelength of 1.55 μm is 0.67 dB/1turn or less. (2) In the case where the bending radius is 10 mm and the twist per fiber length of 62.8 mm is one turn, the macrobend loss at a wavelength of 1.55 μm is 0.16 dB/1turn or less.
A polarization maintaining fiber (1) comprises: a core (11); stress application parts (12a), (12b); and cladding 13. The polarization maintaining fiber has a mode field diameter of 9.2 μm or less at a wavelength of 1.31 μm, has a cutoff wavelength of 1.15-1.31 μm when the fiber length is 2 m and the bending radius is 140 mm, and satisfies at least one of (1) and (2). (1) When the bending radius is 7.5 mm and the twist is one turn per 47.1 mm of fiber length, the macrobend loss at a wavelength of 1.31 μm is 0.76 dB/1 turn or less. (2) When the bending radius is 10 mm and the twist is one turn per 62.8 mm of fiber length, the macrobend loss at a wavelength of 1.31 μm is 0.11 dB/1 turn or less.
A polarization-maintaining fiber (1) is characterized by: being provided with a core (11), a pair of stress impartment parts (12a), (12b) which are disposed at positions holding the core (11) therebetween, and a cladding (13) which surrounds the core (11) and the pair of stress impartment parts (12a), (12b); and having a torsion section (1A) where the stress impartment parts (12a), (12b) rotationally extends in a helical shape permanently around the core (11). In the torsion section (1A): helical torsion of the stress impartment parts (12a), (12b) per fiber length of 47.1 mm consists of not more than one round of turn; the mode field diameter at a wavelength of 1.55 μm is 10.6 μm or less; and the cutoff wavelength is 1.24 μm or more and less than 1.55 μm when the fiber length is 2 m and the bending radius is 140 mm.
A polarization-maintaining fiber (1) is: provided with a core (11), a pair of stress impartment parts (12a), (12b) which are disposed at positions holding the core (11) therebetween, and a cladding (13) which surrounds the core (11) and the pair of stress impartment parts (12a), (12b); and has a torsion section (1A) where the stress impartment parts (12a), (12b) rotationally extends in a helical shape permanently around the core (11). In the torsion section (1A); helical torsion of the stress impartment parts (12a), (12b) per fiber length of 47.1 mm consists of not more than one round of turn; the mode field diameter at a wavelength of 1.31 μm is 9.2 μm or less; and the cutoff wavelength is 1.15 μm or more and less than 1.31 μm when the fiber length is 2 m and the bending radius is 140 mm.
To reduce return loss in a transmission line that transmits a high-frequency wave between a pair of main surfaces of a substrate, as compared with the input/output structure included in the filter device disclosed in Patent Literature 1. The transmission line (1) includes: a substrate (10); a coplanar line (20) including a signal line pattern (21) provided on a main surface (11) and a first coplanar pattern (coplanar patterns 22 and 23) provided on the main surface (11); and a two-conductor line (30) including a first through via (31) electrically connected with the signal line pattern (21) and a ground conductor (through vias 32 and 33).
An optical connector includes a ferrule that has a connection end face and a fiber hole; an embedded fiber that has an insertion portion inserted into the fiber hole, and an extension portion extending from the fiber hole; a connection fiber that is fusion-spliced to the extension portion; a temporary fixing member into which the extension portion is inserted; a heat-shrinkable sleeve that is shrunk by heating, accommodates a connection point of the two fibers, and is fixed to an end portion of the temporary fixing member; a plug frame that has a frame body portion and a regulating portion regulating relative movement of the ferrule with respect to the frame body portion; a tubular stop ring that has a biasing surface, and is locked to the plug frame; and a biasing member that is disposed between the ferrule and the biasing surface and biases the ferrule.
This crosstalk measurement device (1) for an optical device, which has a core (11) and a core (12) that include one end and another end and are parallel to each other, comprises: a connection optical fiber (51) that optically connects the other end (18) of the core (11) and the other end (18) of the core (12); an optical component that is provided more on the core (11) side than a midpoint (C) of the connection optical fiber (51) and has a larger loss of light incident on the core (12) side from the core (11) side than the loss of light incident on the core (11) side from the core (12) side; an OTDR (20) that causes incident light to be incident from the one end (17) of the core (11) and measures the power of emitted light which is emitted from the one end (17) of the core (11) and includes crosstalk light (CL1) generated by crosstalk of the incident light from the core (11) to the core (12); and a processing unit (25) that obtains the magnitude of crosstalk between the core (11) and the core (12) using the measured power of the emitted light.
A cable attachment unit is provided, including a first body having an attachment interface at which a cable is attachable, the first body including a gripping portion configured to promote attachment of the cable to the first body. An attachment body is extended from the first body and includes a first step extending along a vertical direction to a first height. A face extends from the first height, and a second step extends from the face and along the vertical direction to a second height greater than the first height. The second step forms a barrier configured to inhibit extension of a central strength member of the cable along an axial direction. A platform extends between the attachment body and the first body. The first step at the attachment body extends along the vertical direction from the platform.
An optical connection structure includes a first ferrule, a second ferrule, and a split sleeve that has an insertion hole into which at least part of the first ferule and at least part of the second ferule are inserted, in which the split sleeve has a first end in which the first ferrule is inserted and a second end in which the second ferrule is inserted, and when assuming that a dimension of a first taper surface is x1, a distance between a first connection end surface and the first end is y1, a dimension of the second taper surface is x2, and a distance between a second connection end surface and the second end is y2, the following expressions a, b, and c are established.
An optical connection structure includes a first ferrule, a second ferrule, and a split sleeve that has an insertion hole into which at least part of the first ferule and at least part of the second ferule are inserted, in which the split sleeve has a first end in which the first ferrule is inserted and a second end in which the second ferrule is inserted, and when assuming that a dimension of a first taper surface is x1, a distance between a first connection end surface and the first end is y1, a dimension of the second taper surface is x2, and a distance between a second connection end surface and the second end is y2, the following expressions a, b, and c are established.
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A crosstalk measurement device (1) is characterized by comprising: a first optical switch (61) capable of selectively switching to any one of a plurality of optical waveguides; a connection optical waveguide for optically connecting the other end (18) of one optical waveguide and the other end (18) of another one optical waveguide among the plurality of optical waveguides; an OTDR (20) that is optically connected to one end of the one optical waveguide via the first optical switch (61), causes light to enter the one optical waveguide from one end (17) thereof as incoming light, and measures the power of light emitted from the one end of the one optical waveguide, the emitted light including crosstalk light (CL1) generated through crosstalk of the incoming light between the one optical waveguide and the other one optical waveguide; and a processing unit (25) for determining crosstalk between the one optical waveguide and the other one optical waveguide by using the measured power of the emitted light.
A cable accommodating body includes one or more cable bundles made of a wound cable and not having any winding core and one or more first containers accommodating the one or more cable bundles and having a first outlet and a second outlet through each of which the wound cable is pulled out from an inside of the one or more first containers.
B65D 25/10 - Devices to locate articles in containers
B65D 85/04 - Containers, packaging elements or packages, specially adapted for particular articles or materials for annular articles for coils of wire, rope or hose
B65H 49/02 - Methods or apparatus in which packages do not rotate
A fiber optic closure is provided, including a base insertable at least partially into the interior of the closure. A bracket assembly includes a plurality of hinge assemblies along a transverse axis. A connector shaft connects an organizer assembly and the base together. The organizer assembly includes a main body extending between a front and a rear, a first sidewall, and a second sidewall. The main body includes a base panel extending between the first sidewall and the second sidewall and from the front to the rear. An upper retention tab extends from one or more of the first sidewall, the second sidewall, or a front wall of the main body. A lower retention tab extends from one or more walls and is positioned proximate along a transverse axis to the base panel relative to the upper retention tab.
A fiber optic closure is provided including an organizer tray and a mount platform. The organizer tray includes a tray main body including a base wall including a plurality of module mounting locations including a plurality of leg slots and one or more positioning slots defined through the base wall. The mount platform includes a platform base and a platform leg extending from the platform base. The platform base forms a wall configured substantially flush to the base wall. The platform leg is insertable into corresponding leg slots at the mount location. The mount platform includes a retainer wall extending along the transverse axis from an upper surface of the platform base. The retainer wall extends along a first direction to form a detent for a telecommunications module mountable to the organizer tray. The detent is along a second direction perpendicular to the first direction.
This optical connector comprises: a plurality of optical fibers; a ferrule having a plurality of fiber holes through which the plurality of optical fibers are inserted, two positioning holes, and a connection end surface in which the plurality of fiber holes and the two positioning holes are opened; and a housing for holding the ferrule. The connection end surface is inclined with respect to a virtual plane perpendicular to a longitudinal direction of the plurality of fiber holes when viewed from a juxtaposing direction in which the two positioning holes are arranged. The housing has a housing-side contact surface, and the ferrule has a ferrule-side contact surface that limits the amount of protrusion of the ferrule from the housing by coming into contact with the housing-side contact surface. In a state in which the housing-side contact surface and the ferrule-side contact surface are in contact with each other, the ferrule is swingable about a swing center axis with respect to the housing. The swing center axis is located at a position at which the housing-side contact surface and the ferrule-side contact surface are in contact with each other, and extends in an orthogonal direction that is orthogonal to both the longitudinal direction and the juxtaposing direction.
An optical cable structure includes connector-equipped optical fibers, derived from an end portion of a sheath of an optical cable, that are accommodated in a tubular member. Each of the connector-equipped optical fibers includes a derivation optical fiber from the end portion of the sheath and an optical connector disposed at a distal portion of the derivation optical fiber. Lengths of at least some of the derivation optical fibers are different from each other. Each of the derivation optical fibers includes a proximal-side optical fiber on an end portion side of the sheath, a distal-side optical fiber on an optical connector side, and a connecting portion connecting the proximal-side optical fiber to the distal-side optical fiber. The connecting portions are disposed in the tubular member when the connector-equipped optical fibers are accommodated in the tubular member.
An aspect of the present disclosure is directed to a connector collar for a fiber optic closure. The connector collar is insertable into a cavity at a base of the fiber optic closure. The connector collar includes a shaft extending along a longitudinal axis, the shaft forming a passage extending from a first end and a second end. The passage is configured to receive an optical ground wire (OPGW) cable therethrough. The shaft forms a plurality of flanges extending outward along a radial axis to inhibit movement of the collar within the base along the longitudinal axis. The shaft forms a groove configured to position the connector collar relative to the base of the fiber optic closure.
