This page is updated frequently with new Optical Fiber-related patent applications.
|Data processing method and apparatus|
A line card is provided. The line card includes: a first processing module, configured to determine, according to a correspondence between a first optical serial signal flow and a logical interface, the logical interface, where bandwidth of the logical interface is configured to be first bandwidth, the logical interface is corresponding to a first optical interface, and the first optical interface is corresponding to an optical fiber, or a channel that is in an optical fiber and is used to transmit an optical signal with a wavelength.
Huawei Technologies Co., Ltd.
|System and applying system policies in an optical communication system having user-allocated bandwidth|
A system and method that enforces one or more policy rules on user-allocated bandwidth portions of the overall system bandwidth, for example in an optical fiber transmission system. The policy rules may limit, for example, the range of optical wavelengths, the acceptable range on the output-power-spectral density and/or the total per-band optical power within the user-allocated bandwidth that a user may provide on the system.
Tyco Electronics Subsea Communications Llc
|Taps for bidirectional high-speed data on optical fibers|
A system for monitoring data traversing a bidirectional optical fiber includes a network tap. The network tap includes first and second network ports for bidirectional data transmission over a first optical fiber.
|Optical fiber laser device|
An optical fiber laser device generates laser light by using an optical amplifying fiber as an amplification medium in a laser oscillator and includes: an optical outputting fiber configured to emit laser light to an outside; a return-light-attenuating portion configured to perform an attenuation process to return light propagating through at least the optical outputting fiber in a reverse direction of the laser light; a thermal conversion unit provided at the return-light-attenuating portion and configured to convert the return light into heat; a temperature-monitoring device configured to measure an increase in a temperature, of the return-light-attenuating portion, caused by the heat converted by the thermal conversion unit; and a control unit configured to decrease or stop an output of the laser light when the temperature measured by the temperature-monitoring device becomes a predetermined threshold temperature or higher.. .
Furukawa Electric Co., Ltd.
|Cladding light stripper and manufacturing|
A cladding stripper includes a plurality of transversal notches or grooves in the outer surface of an exposed inner cladding of a double clad optical fiber. Position and orientation of the notches can be selected to even out cladding light release along the cladding light stripper, enabling more even temperature distributions due to released cladding light.
Lumentum Operations Llc
|Cored wire, for the production of the same|
A consumable cored wire for measuring a temperature of a molten steel bath includes an optical fiber and a cover laterally surrounding the optical fiber in a plurality of layers. One layer is a metal pipe, also called metal jacket or metal tube.
Heraeus Electro-nite International N.v.
|Optical fiber connector assembly, optical fiber connector plug, and adapter assembly|
Disclosed are an optical fiber connector assembly, an optical fiber connector plug, and an adapter assembly, comprising an optical fiber connector plug, an optical fiber connector adapter, and an adapter base plate. A plug information storage chip and an indicator light-guiding pillar are arranged in parallel on a bottom side of the optical fiber connector plug.
|Method of splicing optical fiber and optical fiber splicing device|
A method of splicing an optical fiber of the invention splices a first optical fiber cable and an optical fiber in a splicing box, the first optical fiber cable is a drop cable or an indoor cable, the optical fiber is drawn from a second optical fiber cable, the method splices a terminal of the first optical fiber cable and the optical fiber. The method includes: sliding a unit base holding an extended-optical-fiber-attached splice along a rail in a direction in which the unit base approaches a grasper; thereby inserting an inserted optical fiber grasped by the grasper between halved elements of a mechanical splice; and splicing the inserted optical fiber and an extended optical fiber by butt-jointing an end of the inserted optical fiber to the extended optical fiber..
Nippon Telegraph And Telephone Corporation
|Untappable secure optical fiber link component|
The inventive configurable optical fiber polarization mode coupler is capable of providing a low-loss, high-coupling coefficient interface with high accuracy and easy alignment between a plurality of optical fibers (or other optical devices) with a first channel-to-channel spacing, and an optical device having a plurality of closely-spaced waveguide interfaces with a second channel-to-channel spacing, where each end of the optical fiber coupler array is configurable to have different channel-to-channel spacing, each matched to a corresponding one of the first and second channel-to-channel spacing, and that are preferably optimized for use with photonic integrated circuits, such as coupling to dense optical input/output interfaces, wafer-level testing, etc. The novel optical coupler array includes a plurality of waveguides (at least one of which may optionally be polarization maintaining), that comprises at least one gradually reduced vanishing core fiber, at least in part embedded within a common housing structure.
Chiral Photonics, Inc.
|Fiber optic enclosure assembly|
A telecommunications enclosure includes first and second generally aligned cable ports at opposing ends of the enclosure. A cable anchor at each of the first and second cable ports is for anchoring a fiber optic drop cable to the enclosure and to limit axial movement of the cable relative to the enclosure.
Commscope Technologies Llc
An optical fiber having a reduced attenuation includes a silica glass core and a silica glass cladding. The silica glass core has substantially no germanium and includes a first core and a second core.
Sumitomo Electric Industries, Ltd.
Distributed optical sensors for acoustic and vibration monitoring
An apparatus for sensing vibration in a borehole penetrating the earth includes an optical fiber having a plurality of pairs of reflectors configured to reflect light between each of the pairs of reflectors in the plurality, wherein each pair of reflectors is separated by a nominal distance l and an adjacent pair of reflectors in the plurality are separated by a nominal distance d, and an optical interrogator configured to sense a distance between each pair of reflectors in the plurality over time to sense the vibration. A laser emits semi-coherent light over a swept range of wavelengths to illuminate the optical fiber, wherein the semi-coherent light provides for sensing over distance l in the optical fiber between each pair of reflectors and for no sensing in the optical fiber over distance d between different pairs of reflectors.
Baker Hughes Incorporated
Optical fiber calibration connector
The present invention relates to an optical fiber connector for mating a first group of one or more optical fibers (102) with one or more corresponding optical fibers in a second group of one or more optical fibers (103). The optical fiber connector in dudes a shutter (105), which prevents the ingress of debris into the connector, and provides an optical reference surface with which to calibrate optical fibers that are inserted into the connector.
Koninklijke Philips N.v.
Wall-mounted sun tracking and light guiding apparatus
The present invention relates to a flat wall-mounted sun-tracking and light-guiding device with built-in sensors, which comprises a sun-tracking and light-guiding member, a sun-tracking controller, a light concentrator, and a switchable light emitter. The sun-tracking and light-guiding member owns the function of tracking the sun and is coupled to the sun-tracking controller.
Institute Of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.o.c.
Method of producing an optical fiber and apparatus of producing the optical fiber
(c) a light irradiation step of irradiating the ultraviolet curable resin with ultraviolet light emitted from a semiconductor light emitting element, in a state in which the ultraviolet curable resin is heated, to cure the ultraviolet curable resin into a coating resin.. .
Method for etching a primary preform
The present invention relates in a first aspect to a method for etching a primary preform or core rod. The present invention moreover relates in a second aspect to the etched primary preform thus obtained and moreover to a final preform and optical fibers obtained therefrom and to a method of preparing optical fibers therefrom..
Draka Comteq B.v.
Optical fiber cable, manufacturing the same, and light source module including the same
A plug that is engaged with a receptacle for light emission of a light source unit that emits a light beam having a flat-shaped cross section and an optical fiber having a burr defect in a part of an outer peripheral portion of an incidence end surface on which the light beam is incident are included. The plug is attached to an incidence end portion of the optical fiber in an arrangement in which the burr defect is located in a short axis direction of a cross section on the incidence end surface of the light beam incident on the incidence end surface in a state in which the plug is engaged with the receptacle..
Light intensity adjustable ultraviolet device for curing optical fiber coating
A light intensity adjustable ultraviolet device for curing an optical fiber coating includes a cylindrical mounting base; a uvled light source module mounted along a peripheral direction and an axial direction in an inner cavity of the cylindrical mounting base; a cylindrical focusing lens configured in front of a light emitting surface of the uvled light source module, so that ultraviolet light emitted by the uvled light source module is focused on a curing axis; and an ultraviolet sensor mounted in the inner cavity of the cylindrical mounting base, wherein the ultraviolet sensor is connected to a uvled power supply control module via an ultraviolet intensity signal processing module; the uvled power supply control module is connected to the uvled light source module, so that an optical fiber drawing speed and an ultraviolet intensity form a control closed loop.. .
Yangtze Optical Fibre And Cable Joint Stock Limited Company
Single source optical transmission
Systems and methods for optical communication using single source optical transmission are disclosed. A representative method includes receiving optical signals at a first frequency by a receiver (rx) from an optical fiber.
Transmission confirming connection of optical fiber
There is provided a transmission apparatus, which includes: a filter configured to pass an optical signal having a predetermined wavelength received via an optical fiber, a variable optical attenuator configured to attenuate a power level of the optical signal passed by the filter, a first measuring circuit configured to measure a first power of the optical signal before being passed by the filter, a second measuring circuit configured to measure a second power of the optical signal attenuated by the variable optical attenuator, a detector configured to detect a difference between the first power and the second power, and a controller configured to increase an attenuation factor of the variable optical attenuator when the difference is equal to or larger than a first predetermined value.. .
Method and system for high-precision two-way fiber-optic time transfer
A method and system for high-precision two-way fiber-optic time transfer comprising pre-adjusting, including calculating a local timing signal adjustment amount for a first fiber-optic time synchronization unit and a second fiber-optic time synchronization unit, and the corresponding adjusting. And following steps including the two fiber-optic time synchronization units conducting two-way time transfer based on a time division multiplexing transmission over an optical fiber link.
Shanghai Jiao Tong University
Optical scanning actuator and optical scanning apparatus
An optical scanning actuator (1) includes an optical fiber (2) having a tip (2a) supported to allow vibration and includes a piezoelectric element (4) that generates a driving force by expanding and contracting in the direction of the optical axis of the optical fiber (2), the driving force driving the tip (2a) of the optical fiber (2) in a direction perpendicular to the optical axis. The optical scanning actuator (1) has rotational asymmetry or two-fold rotational symmetry about the optical axis of the optical fiber (2), and the resonance direction of the tip (2a) of the optical fiber (2) and the direction of the driving force of the piezoelectric element (4) are substantially parallel..
Carrier for mounting optical elements and associated fabrication process
A low-cost and mass producible carrier part for precise mounting of optical components such as an optical fiber and optical die and associated fabrication process.. .
Te Connectivity Nederland B.v.
Mounting component for optical fiber, optical module, and optical module manufacturing method
Provided is a mounting component for an optical fiber that allows a laser device and an optical fiber to be aligned with higher precision while providing protection for the laser device mounted on a substrate. The a mounting component is a component formed from silicon for optically coupling a laser device to an optical fiber by being bonded to a mounting substrate on which the laser device is mounted, and includes a groove portion for fixedly holding the optical fiber so that a core of the optical fiber is positioned at a predetermined depth with respect to a bonding surface to be bonded to the mounting substrate, and a recessed portion, formed continuous with the groove portion, for accommodating the laser device, wherein a thickness of the mounting component, measured in a direction perpendicular to the bonding surface, is chosen so that a position of the laser device can be detected using an infrared transmission image when the laser device is accommodated in the recessed portion by placing the bonding surface in contact with the mounting substrate..
Citizen Holdings Co., Ltd.
Cable sealing device
A cable sealing device is described herein for use in a sealed optical fiber connector that includes a spreading member disposed around and axially movable with respect to a cable and elastic sleeve concentrically disposed around the cable and over the spreading member. The elastic sleeve includes a first cable sealing portion disposed in fixed sealing contact with the cable, a central sealing portion that is axially offset from the first cable sealing portion and concentrically arranged around the spreading member, and a first flexible membrane portion disposed between the first cable sealing portion and the central sealing portion..
3m Innovative Properties Company
Method for terminating high fiber count cables
Aspects and techniques of the present disclosure relate to a method for mating a first high fiber count optic cable including a first plurality of optical fiber ribbons with a second high fiber count optic cable including a second plurality of optical fiber ribbons. The method can include: stripping a portion of the first and second high fiber count optic cables; cutting-off each of the first and second pluralities of optical fiber ribbons at different lengths such that cut ends of each of the first and second pluralities of optical fiber ribbons are staggered relative to one another; installing a first and second plurality of multi-fiber connectors respectively on the cut ends; optically coupling the first and second plurality of multi-fiber connectors; and mounting a protective sleeve over exposed portions of the first and second pluralities of optical fiber ribbons of the first and second high fiber count optic cables..
Commscope Technologies Llc
Fiber to chip optical coupler
An optical coupler for coupling an optical fiber to a photonic integrated circuit (pic) is presented. The optical coupler comprises a first curved mirror included in a first substrate layer of the pic and at a first predefined lateral distance from an optical transceiver associated with the pic; a second curved mirror included in a second substrate layer and placed at a second predefined lateral distance from the optical fiber; and a spacer located between the first substrate layer and the second substrate layer..
Multi-core optical fiber, multi-core optical fiber cable, and optical fiber transmission system
The present embodiment relates to an mcf in which the strength of mode coupling or power coupling between adjacent cores included in one coupled-core group is set to an appropriate level to reduce a dgd. The mcf includes at least one coupled-core group.
Sumitomo Electric Industries, Ltd.
Method of determining deformation in a structure
A method of determining deformation in a structure around which a sensing optical fiber is helically wound, includes performing a distributed measurement at a point along the fiber, to obtain a frequency gain spectrum at that point. Performing a distributed measurement includes, adjusting a pulse width of a pulse pump signal to achieve a predefined spatial resolution and providing the pulse pump signal with adjusted pulse width in the fiber to generate scattering, which is used to obtain the frequency gain spectrum.
Systems and devices for sensing corrosion and deposition for oil and gas applications
Sensing systems include a tube defining a fabry-perot cavity and an optical fiber including a distal end disposed within the fabry-perot cavity and a proximal end. A corrodible material caps the fabry-perot cavity.
Baker Hughes Incorporated
Associated interferometers using multi-fiber optic delay lines
An interferometer apparatus which include two or more coupled fiber optic michelson interferometers using fiber optic stretches which stretch two or more optical fibers wound around the perimeter of the optical fiber stretchers by the same amount is disclosed. Preferably a pair of reference and sample fiber optic stretches are utilized which run in a push-pull mode of operation.
Method of assembling optical fiber preforms
The present disclosure provides optical fiber preforms formed from core canes having large core-clad ratio, intermediate core-cladding assemblies, and methods for making the preforms and core cladding assemblies. The preforms are made from core canes having a contoured end surface.
Gas reclamation system for optical fiber production
A method of producing an optical fiber is provided that includes the steps of flowing a first gas into an optical fiber draw furnace. The first gas is passed through a heated section configured to contain and heat a glass source from which the optical fiber is drawn, passing the first gas through a muffle which defines a capture chamber.
Method to prevent cracks in optical fiber preforms
The present disclosure provides optical fiber preforms formed from core canes having large core-clad ratio, intermediate core-cladding assemblies, and methods for making the preforms and core cladding assemblies. The preforms are made with capped core canes.
Method of manufacturing optical fiber preform and optical fiber preform
The present invention relates to a method of manufacturing an optical fiber preform for obtaining an optical fiber with low transmission loss. A core preform included in the optical fiber preform comprises three or more core portions, which are each produced by a rod-in-collapse method, and in which both their alkali metal element concentration and chlorine concentration are independently controlled.
Sumitomo Electric Industries, Ltd.
Instrument and the automated thermal treatment of liquid samples
An instrument and a method for the automated thermal treatment of liquid samples are disclosed. An inter-distance between a temperature-controlled receptacle for loading with a plurality of vessels for containing the samples and end portions of optical fibers can be varied, wherein the receptacle is configured to form a thermal communication with the loaded vessels and wherein the optical fibers have first and second end portions.
Roche Molecular Systems, Inc.
Coupling device for detachably connecting a medical, in particular a dental, hand piece to a drive unit or a supply hose
A coupling device for releasable connection of a medical or dental handpiece to a drive unit or to a supply tubing for transferring signals, data and/or energy, a drive movement, a working medium and/or light between the handpiece and the drive unit or the supply tubing, having a first coupling element and a second coupling element, wherein one of the two coupling elements is designed as a coupling cavity, into which a coupling protrusion on the other coupling element can be inserted, a positioning element, which is disposed on the first coupling element or the second coupling element and can be inserted into a first recess on the other coupling element in order to position the two coupling elements in a defined angular position about their common axis relative to one another, at least one light source, which is disposed in a second recess on the first or second coupling element and can be coupled to an optical fiber on the other coupling element as well as by at least one transfer element, which is disposed on the first or second coupling element and can be inserted into a third recess on the other coupling element to transfer data, signals and/or energy between the first and second coupling elements.. .
W&h Dentalwerk Bürmoos Gmbh
Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (rf) communications services, and related components and methods
Methods and systems for distribution of digital data services, radio frequency (rf) communications services, and power are provided for use in optical fiber-based distributed communications systems. Electrical digital data signals are received at a distribution unit.
Corning Optical Communications Llc
Optical resonators having noise margins
Optical communication using optical resonators with noise margins is disclosed. A representative system includes an optical fiber for transmitting optical signals, a receiver configured to receive the optical signals, and a plurality of optical resonators optically connecting the optical fiber to the receiver.
Edge emitting semiconductor laser system
A laser system includes an edge emitting semiconductor laser, and an optical fiber, wherein the laser emits one or more laser beams coupled into the optical fiber and the laser includes a semiconductor body including a waveguide region that includes first and second waveguide layers and an active layer arranged between the first and second waveguide layers and generates laser radiation, the waveguide region is arranged between first and second cladding layers disposed downstream of the waveguide region, a phase structure is formed in the semiconductor body, includes a cutout extending from a top side of the semiconductor body into the second cladding layer, at least one first intermediate layer composed of a semiconductor material different from the material of the second cladding layer is embedded therein, and the cutout extends from the top side of the semiconductor body at least partly into the first intermediate layer.. .
Osram Opto Semiconductors Gmbh
Multi-wavelength laser system for optical data communication links and associated methods
A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply.
Ayar Labs, Inc.
Method and device for reducing extrinsic dark count of nanowire single photon detector
A method and a device for reducing the extrinsic dark count of a superconducting nanowire single photon detector (snspd), it comprises the steps of: integrating a multi-layer film filter on the superconducting nanowire single photon detector; the multi-layer film filter is a device implemented by a multi-layer dielectric film and having a band-pass filtering function. The extrinsic dark count is the dark count triggered by optical fiber blackbody radiance and external stray light.
Shanghai Institute Of Microsystem And Information Technology, Chinese Academy Of Sciences
Virtual/augmented reality system having reverse angle diffraction grating
A display subsystem for a virtual image generation system comprises a planar waveguide apparatus, an optical fiber, at least one light source configured for emitting light from a distal end of the optical fiber, and a mechanical drive assembly to which the optical fiber is mounted as a fixed-free flexible cantilever. The drive assembly is configured for displacing a distal end of the optical fiber about a fulcrum in accordance with a scan pattern, such that the emitted light diverges from a longitudinal axis coincident with the fulcrum.
Magic Leap, Inc.
Microlens collimator for scanning optical fiber in virtual/augmented reality system
A display subsystem for a virtual image generation system for use by an end user comprises a planar waveguide apparatus, an optical fiber, at least one light source configured for emitting light from a distal end of the optical fiber, and a collimation element mounted to a distal end of the optical fiber for collimating light from the optical fiber. The virtual image generation system further comprises a mechanical drive assembly to which the optical fiber is mounted to the drive assembly.
Magic Leap, Inc.
Optical fiber adapter with shutter member
An optical fiber adapter according to the present disclosure includes a main body, an inner housing, an elastic shutter member and a spring. The main body has an axial accommodation room defined by a first wall, a second wall, a third wall and a fourth wall.
Protai Photonic Co., Ltd.
Strategic placement of plastic structures for emi management of transceiver module
An example optoelectronic module includes a housing that extends between a first end portion and a second end portion. The optoelectronic module includes a printed circuit board (“pcb”) that includes an electrical connector at the second end portion of the housing, at least one transmitter electrically coupled to the pcb and optically coupled with at least one optical fiber, at least one receiver electrically coupled to the pcb and optically coupled with at least one optical fiber, and at least one electromagnetic interference (“emi”) attenuating component formed of a plastic material that is configured to attenuate emi.
Optical connector, electronic apparatus, and optical connector mounting method
An optical connector includes at least one optical fiber, and a ferrule configured to hold the optical fiber. In the optical connector, the ferrule has a hook and a presser member on a front part of a bottom face of the ferrule, and a projection on a rear part of the bottom face of the ferrule, in a connecting direction, and the optical fiber is held obliquely downward from a rear end of the ferrule toward the presser member of the ferrule..
Extended access optical fiber connector ferrule
A fiber optic ferrule comprising a ferrule body having a plurality of optical fiber insertion holes at a first end thereof, the plurality of optical fiber insertion holes being configured to receive a plurality of optical fibers, and an extended access opening arranged at a top surface of a second end of the ferrule body located opposite the first end, the extended access opening being configured to provide open access to substantially an entirety of an interior space within the ferrule body.. .
Senko Advanced Components, Inc.
Optical coupling adaptor for optical signal coupling between photonic integrated circuit and optical fiber
An optical coupling adaptor couples an optical fiber to a photonic integrated circuit (pic) chip. The adaptor once connected to the pic chip forms a chip-adaptor assembly.
Optical fiber with large effective area and low bending loss
An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region.
Microstructured optical fibers for gas sensing systems
Microstructured optical fiber (mof) includes a cladding extending a length between first and second ends. The cladding includes an inner porous microstructure that at least partially surrounds a hollow core.
General Electric Company
Method for distributedly measuring polarization transmission matrices of optical fiber and system thereof
A method for distributedly measuring polarization transmission matrices of an optical fiber includes steps of: inputting a fully polarized pulse into the optical fiber with linear birefringence only; and demodulating polarization states of rayleigh backscattered light at different points on the optical fiber from a pulse input end; after demodulating, dividing the polarization states of the rayleigh backscattered light into q groups in sequence, wherein every three polarization states are divided into one group; calculating a transmission matrix of group n; and solving the equation set using a numerical analysis method for obtaining multiple solutions, and screening the multiple solutions according to characteristics of the polarization transmission matrix, wherein each time of screening provides a unique solution mx(n) of the equation set; continually updating ma values for iteration, so as to obtain the distribution of polarization transmission matrices of the optical fiber.. .
University Of Electronic Science And Technology Of China
Temperature measurement device and temperature measurement method
A temperature measurement device includes: an optical fiber that is arranged along a predetermined path; a light source configured to input a light into the optical fiber; a measurer configured to measure temperature distribution information in an extension direction of the optical fiber based on a back-scattering light from the optical fiber; and a corrector configured to make a filter for reducing a noise component of temperature distribution information measured by the measurer based on a difference of temperature distribution information between two different regions of the optical fiber in which a common temperature distribution is obtained, and correct the temperature distribution information by applying the filter to the temperature distribution information.. .
Lamp fitting for vehicle and coupler/distributor
The lamp fitting for a vehicle includes a plurality of laser light sources, and laser light from the plurality of laser light sources is introduced into a plurality of optical systems, and is used in the plurality of optical systems. The lamp fitting for a vehicle includes: a plurality of laser light sources; one or more optical fibers; one or more optical systems which are provided in conformity with the one or more optical fibers and to which a corresponding emission end of the optical fiber among the one or more optical fibers is connected; and a plurality of optical elements which are disposed between the laser light sources and an incident end of the one or more optical fibers, and constitute an optical path guiding laser light from at least one of the laser light sources to the incident end of the one or more optical fibers..
Stanley Electric Co., Ltd.