One example coherent optical time domain reflectometer device includes a coherent light source that produces coherent probe light pulses at an optical wavelength; an optical coupling unit coupled to f a fiber link under test to direct the coherent probe light pulses into the fiber link and to receive reflected probe light pulses from the fiber link; an optical detection unit to receive the reflected probe light pulses and structured to include an optical interferometer to process the reflected probe light pulses along two different optical paths to generate different optical output signals from the reflected probe light pulses along different optical paths, and optical detectors to receive the optical output signals from the optical interferometer; and a device controller coupled to the optical detection unit to extract information on spatial distribution of acoustic- or vibration- or strain-dependent characteristics as a function of distance along the fiber link under test.
G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
G01D 5/32 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light
2.
DEVICES AND METHODS FOR CHARACTERIZATION OF DISTRIBUTED FIBER BEND AND STRESS
The disclosed technology includes, among others, methods and devices for measuring distributed fiber bend or stress related characteristics along an optical path of fiber under test (FUT) uses both a light input unit and a light output unit connected to the FUT at one single end.
Imaging devices and processing techniques based on imaging information along the depth direction in an optical coherent tomography (OCT) image are disclosed to enhance observed morphological features. The methods and systems obtain different OCT images of the target object under different reference path lengths, process the different OCT images to obtain a derivative with respect to the signal path length of image information of the different images, and processing the derivative to extract improved image information of the target object. The derivatives may be in a form related to a gradient value of the normalized OCT image intensity, or an attenuation coefficient.
G01N 21/45 - RefractivityPhase-affecting properties, e.g. optical path length using interferometric methodsRefractivityPhase-affecting properties, e.g. optical path length using Schlieren methods
4.
Methods of manufacturing wire, wire pre-products and wires
Exemplary methods for manufacturing a wire and resultant wires are disclosed herein. The method includes extruding a cross-linkable polymer that is substantially free of curing agent about a conductive core, then adding a curing agent to the extruded wire pre-product, then heat-curing the extruded wire pre-product.
H01B 13/14 - Insulating conductors or cables by extrusion
B29C 47/88 - Heating or cooling the stream of extruded material
B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
B29C 35/06 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam for articles of indefinite length
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
B29C 71/00 - After-treatment of articles without altering their shapeApparatus therefor
Exemplary methods for manufacturing a wire and resultant wires are disclosed herein. The method includes extruding a receptor cross-linkable polymer that is substantially free of curing agent about a conductive core and extruding a donor polymer in association with a curing agent. The method includes disposing the donor polymer about the receptor polymer and conductive core to create a multi-layer wire pre-product. The method also includes heat curing a multi-layer wire pre-product to form a wire.
H01B 13/14 - Insulating conductors or cables by extrusion
B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
B29C 47/88 - Heating or cooling the stream of extruded material
H01B 7/04 - Flexible cables, conductors, or cords, e.g. trailing cables
B29C 35/06 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam for articles of indefinite length
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
B29C 71/00 - After-treatment of articles without altering their shapeApparatus therefor
B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
6.
Methods of manufacturing wire, multi-layer wire pre-products and wires
Exemplary methods for manufacturing a wire and resultant wires are disclosed herein. The method includes extruding a receptor cross-linkable polymer that is substantially free of curing agent about a conductive core and extruding a donor polymer in association with a curing agent. The method includes disposing the donor polymer about the receptor polymer and conductive core to create a multi-layer wire pre-product. The method also includes heat curing a multi-layer wire pre-product to form a wire.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 7/295 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame using material resistant to flame
H01B 7/04 - Flexible cables, conductors, or cords, e.g. trailing cables
H01B 13/14 - Insulating conductors or cables by extrusion
This application describes optical monitoring devices and applications in optical systems for monitoring various optical parameters of light, including the signal to noise ratio, the degree of polarization, and the differential group delay (DGD).
H04B 10/00 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
06 - Common metals and ores; objects made of metal
Goods & Services
COMMON METALS IN THE CRUDE STATE, MORE PARTICULARLY, ALUMINUM AND ALUMINUM ALLOYS; ROLLED BARS AND RODS, [ EXTRUDED BILLETS, MOLDINGS, AND FORGINGS ] OF NON-PRECIOUS METALS, MORE PARTICULARLY ALUMINUM AND ALUMINUM ALLOYS; [ SHEETS AND OTHER SHAPES AND ALSO ] WIRES OF NON-PRECIOUS METALS, MORE PARTICULARLY ALUMINUM AND ALUMINUM ALLOYS [ , ALSO COMBINED WITH OTHER METALLIC OR NON-METALLIC MATERIALS; PLATED METALS; METAL POWDER AND GRAINS (NOT FOR THE USE OF PAINTERS AND DECORATORS); CABLES (NON-METALLIC) ]
