|| List of recent Optical-related patents
|Differential transmission circuit, optical module and manufacturing differential transmission circuit|
A differential transmission circuit includes: a dielectric layer for embedding a plurality of first strip conductor pairs arranged side by side in the same layer above a ground conductor layer, each of the plurality of first strip conductor pairs including a first right strip conductor and a first left strip conductor, the dielectric layer being formed from an upper side of the ground conductor layer up to a region above the plurality of first strip conductor pairs, the dielectric layer having a flat upper surface. A region between adjacent two of the plurality of first strip conductor pairs is embedded in the dielectric layer without arranging a conductor in the region..
Oclaro Japan, Inc.
|System and transverse pumping of laser-sustained plasma|
A laser-sustained plasma light source for transverse plasma pumping includes a pump source configured to generate pumping illumination, one or more illumination optical elements and a gas containment structure configured to contain a volume of gas. The one or more illumination optical elements are configured to sustain a plasma within the volume of gas of the gas containment structure by directing pump illumination along a pump path to one or more focal spots within the volume of gas.
|Light source system and optical coherence tomography apparatus using the light source system|
A light source system includes a laminate having a lower electrode layer, an active layer and an upper electrode layer in this order, a light-emitting element including at least one of the upper electrode layer and the lower electrode layer divided into a plurality of electrodes and configured to emit light by injecting a current into the active layer via the upper electrode layer and the lower electrode layer, and a control unit configured to control a current injecting amount to the upper electrode layer and the lower electrode layer. The control unit controls a half-value width of the emission spectrum of the light-emitting element by varying a difference between an injection current density to a first electrode and an injection current density to a second electrode among the plurality of electrodes..
Canon Kabushiki Kaisha
|Optoelectronic component apparatus, producing an optoelectronic component operating an optoelectronic component apparatus|
Various embodiments may relate to an optoelectronic component apparatus, including a carrier, an optoelectronic component and a thermoelectric component on or above the carrier. The optoelectronic component has a planar, optically active region.
Osram Oled Gmbh
|Infra-red device for focused heating|
A heating system comprises at least one ir heating device 3 and at least one optical element arranged to focus or direct ir radiation emitted by the ir heating device 3 onto an object to be heated 1.. .
Ir Focus Aps
|System for translating instructions in a switch node|
A control module for an optical switch node, comprising a tim having a plurality of operating modes in which a first mode is identified by a first byte sequence; a communication interface unit transmitting a second byte sequence for placing the tim in the first mode, the first byte sequence different from the second byte sequence, and a gate array receiving the second byte sequence, storing a list of predetermined unique values, each value indicative of a particular operating mode command, receiving at least a portion of the second byte sequence and receiving instructions to apply an algorithm to at least a portion of the second byte sequence to transform the portion into a checksum value, comparing the checksum value to the list to determine the operating mode command, and transmitting the first byte sequence to the tim to place the tim into the first mode.. .
|Method, apparatus, and computer program product for providing automated testing of an optical character recognition system|
A method is provided for providing automated testing of an optical character recognition (ocr) system. An automated testing framework may convert original text files to images of various formats and resolutions.
Mckesson Financial Holdings
|Optical system, operating an apparatus using helmholtz reciprocity|
An optical system includes an illumination unit and an imaging unit configured to image a scene including at least one object into a first image and a second image by using helmholtz reciprocity. The illumination unit is configured to emit light into at least one light emitting solid angle and the imaging unit is configured to receive light from a light receiving solid angle.
|Stereo adapter and stereo imaging apparatus|
A stereo adapter includes first and second reflecting surfaces disposed in a front of an imaging unit along a direction perpendicular to a parallax direction, a third reflecting surface disposed further away from the imaging unit than the first reflecting surface along the parallax direction, and a fourth reflecting surface disposed further away from the imaging unit than the second reflecting surface along the parallax direction and on an opposite side of the third reflecting surface. Each reflecting surface is rotated by a predetermined angle from an entrance pupil plane or an object plane around a first axis orthogonal to the parallax direction and the optical axis and is tilted such that a ray in parallel to the optical axis when entry forms an angle of a quarter of a vertical angle of view of the imaging unit to the optical axis when leaving from the stereo adapter..
|Method for authenticating an image capture of a three-dimensional entity|
A method of authenticating the capture of an image of a three-dimensional entity is provided, including the steps of generating a series of images of the entity with the help of an optical sensor, associating each image with information representative of the position of the sensor at the moment at which it generated the image, and determining whether there is consistency between two images of the series by verifying whether there is consistency between an apparent movement of the optical sensor as determined by comparing characteristic points visible in the two images and an estimated real movement of the optical sensor as determined by comparing information representative of three-dimensional positions of the optical sensor at the moments when it generated the two images.. .
System and providing improved display quality by display adjustment and image processing using optical feedback
A display system and method created by adjusting the properties of one or more displays to obtain coarse control over display behavior, by using sensors to optimize display parameters and meet a quality target. The display may construct a display map by selectively driving the display and sensing the optical image created.
Scalable Display Technologies, Inc.
Provided is a surveillance camera including an optical system, an irradiator; an illuminance sensor, a photoelectric converter, an analog-digital converter, and a main controller. The optical system includes a lens.
Samsung Techwin Co., Ltd.
Method and composition of subtitles
Embodiments of the invention include a subtitling format encompassing elements of enhanced syntax and semantic to provide improved animation capabilities. The disclosed elements improve subtitle performance without stressing the available subtitle bitrate.
Projection-type video display apparatus
A projection-type video display apparatus includes: a light source; an illumination optical system; a video display device; and a projection optical system, and the illumination optical system includes: a multireflection device which makes a distribution of light from the light source uniform; a color wheel which decomposes a color of light from the multireflection device; and a lens which enlarges light from the color wheel. When two orthogonal axes on a plane perpendicular to a traveling direction of the light are respectively defined as an x axis and a y axis, a curvature radius of the lens in an x-axis direction differs from a curvature radius of the lens in a y-axis direction.
Hitachi Maxell, Ltd.
Scanning laser projection display devices and methods for projecting one or more images onto a surface with light-scanning optical fiber
Image projection devices, high-speed fiber scanned displays and related methods for projecting an image onto a surface and interfacing with the projected image are provided. A method for projecting one or more images and obtaining feedback with an optical input-output assembly is provided.
University Of Washington
Modular packaging and optical system for multi-aperture and multi-spectral camera core
An imaging device comprises a focal plane array (fpa) having a plurality of singulated unit cells arranged on a carrier substrate. Each of the unit cells comprises a sub-array of pixels in the focal plane array.
Invis Technologies Corporation
Zoom lens system, interchangeable lens apparatus and camera system
A zoom lens system, in order from an object side to an image side, comprising: a negative first lens unit; a positive second lens unit; a negative third lens unit; and a positive fourth lens unit, wherein the first, second and third lens units move along an optical axis in zooming, the third lens unit moves along the optical axis in focusing, and the conditions: 2.5≦. .
The interchangeable lens includes: a shake correction processing unit configured to calculate an amount of shake correction for the correction lens and an imaging device; and a lens driving unit configured to perform image blur correction by moving the correction lens in a plane perpendicular to an optical axis based on an output from the shake correction processing unit. The camera body includes a device driving unit configured to perform image blur correction by moving the imaging device in a plane perpendicular to the optical axis.
Panasonic Intellectual Property Management Co., Ltd.
Distance detecting device, imaging apparatus, distance detecting method and parallax-amount detecting device
A distance detecting device includes a distance calculation unit configured to calculate a distance to a target of imaging based on a first signal corresponding to a luminous flux having passed through a first pupil region of an exit pupil in an imaging optical system, and a second signal corresponding to a luminous flux having passed through a second pupil region different from the first pupil region, and a signal processing unit configured to perform a filtering process on at least one of the first signal and the second signal by using a band pass filter having a lower number of cells in a first direction than a number of cells in a second direction perpendicular to the first direction, and a filter for phase correction having a higher number of cells in the first direction than the number of cells in the second direction.. .
Canon Kabushiki Kaisha
Imaging apparatus and its control method
An imaging apparatus includes an imaging element with a first pixel for receiving light flux passing through a first partial pupil area in a focusing optical system and a second pixel for receiving the light flux passing through the entire pupil area in a focusing optical system. A signal generating unit of a focus detection signal generates a first signal based on a light-receiving signal of the first pixel and a second signal based on a light-receiving signal of the second pixel.
Canon Kabushiki Kaisha
Focus detection apparatus and method
A focus detection apparatus comprises: a sensor unit, having a plurality of photoelectric conversion elements for receiving light that passed through an imaging optical system and accumulating charge, configured to generate an image signal to be used for correlation calculation for focus detection based on the accumulated charge; a control unit configured to control the photoelectric conversion elements to stop charge accumulation in a case where a first signal that represents contrast of the image signal reaches a predetermined voltage level; and a voltage level setting unit. The voltage level setting unit sets a larger voltage level in a first case, in which luminance change in a direction of the correlation calculation in the plurality of the photoelectric conversion elements is gentler than a second case, than in the second case..
Canon Kabushiki Kaisha
Focus detection apparatus and control method thereof
A first phase difference between a first image signal output from a first pixel configured to detect a light flux having passed through a first partial area of the exit pupil, and a second image signal output from a third pixel configured to detect a light flux having passed through the entire exit pupil is computed. A second phase difference between a third image signal output from a second pixel configured to detect a light flux having passed through a second partial area of the exit pupil, and a fourth image signal output from a fourth pixel arranged at a position different from the third pixel and configured to detect a light flux having passed through the entire exit pupil is computed.
Canon Kabushiki Kaisha
Image processing device, control method thereof, and program
The image processing device includes an imaging unit configured to capture a plurality of pupil-divided images obtained from light fluxes passing through different pupil regions of an imaging optical system, and a control unit configured to select images to be used for image processing from the pupil-divided images captured by the imaging unit, according to the position of the imaging area in the imaging unit.. .
Canon Kabushiki Kaisha
Optical element, optical system and imaging apparatus
An optical element in which transmittance of light monotonically decreases from a center portion toward a peripheral portion, includes a light absorbing portion, made of a material that absorbs a part of or all of visible light, formed at one surface of a transparent substrate such that its thickness monotonically increases from the center portion toward the peripheral portion; a light transmitting portion, made of a material that transmits visible light, formed on the light absorbing portion; and a transparent resin layer, made of a material that transmits visible light, formed at another surface of the transparent substrate, wherein each of the light absorbing portion, the light transmitting portion and the transparent resin layer is made of a resin material.. .
Asahi Glass Company, Limited
Imaging device and analyzing apparatus using the imaging device
An imaging device includes: an optical system having a lens and a diaphragm; an image sensor having a first pixel and a second pixel which a light that has passed through the optical system enters; and an optical element array positioned between the optical system and the image sensor, the optical system has an optical filter including a first region and a second region having different optical characteristics, the optical element array makes the light that has passed through the first region enter the first pixel and makes the light that has passed through the second region enter the second pixel, and an entrance pupil of the optical system is located between the diaphragm and an object.. .
Panasonic Intellectual Property Management Co., Ltd.
Image obtaining apparatus
An image obtaining apparatus has a swing-type optical system, an optical dome and a correction optical system. The swing-type optical system is configured to adjust a photographing direction based on a swinging operation.
Mitsubishi Heavy Industries, Ltd.
Camera module with electro-magnetic interference shielding
A camera module includes a circuit board, an image sensor, a bracket, a vcm, and a lens module. The image sensor is positioned on the circuit board.
Hon Hai Precision Industry Co., Ltd.
Optical attachment for deviating field of view
A field of view deviator apparatus for a camera lens housing on a personal communications device has a coupling that seats a removable element in a position adjacent to the camera lens and a field of view deviator prism that seats in the coupling and defines a path for image-bearing light from the subject scene to the camera lens having a first transmissive surface that is at a sufficiently oblique angle to the defined path of image-bearing light within the prism for total internal reflection, a second transmissive surface that is substantially at a normal to the defined path of incident image-bearing light within the prism; and a first reflective surface that folds the defined path of image-bearing light within the prism.. .
Kessler Optics & Photonics Solutions, Ltd.
Image capturing apparatus
There is provided an image capturing apparatus, comprising an image capturing device disposed inside of a housing; and a holding unit held by an image capturer upon an image capture, a first turning axis substantially orthogonal to an optical axis being disposed in the holding unit, a display unit on which an image captured by the image capturing device is displayed turning freely opened/closed to the housing centering around the first turning axis.. .
A camera module with internal structural elements housed inside a housing space formed by joining two cases together achieves a sufficient joint strength between both cases even though the thickness of the case walls is reduced to make the outer shape smaller, as well as a size reduction of the camera module is enabled, when the two cases are joined together by ultrasonic welding. The joint surfaces where the two cases are joined together are inclined relative to a plane orthogonal to the optical axis direction of a lens unit housed inside the camera module.
Image processing apparatus configured to execute correction on scanned image
An image processing apparatus includes a processor and a memory storing computer-readable instructions therein. The computer-readable instructions, when executed by the processor, cause the image processing apparatus to: acquire scan data from a scan data generating unit, the scan data generating unit being configured to generate the scan data by optically reading a sheet being conveyed, the scan data representing a scanned image that includes an image indicative of the sheet, the sheet having a plurality of sides; detect a plurality of edge lines from the scanned image by analyzing the scan data, the plurality of edge lines representing the plurality of sides, respectively; determine whether the plurality of edge lines include a non-linear edge line; and correct, when the plurality of edge lines is determined to include a non-linear edge line, the scan data so that the non-linear edge line is changed to a linear edge line..
Brother Kogyo Kabushiki Kaisha
Image reading device and image forming apparatus
A document conveying portion is configured to convey a document sheet along a conveyance path extending sequentially through a turn-around portion at which a conveyance direction is reversed and a predetermined reading position. A reading unit is movable in a predetermined moving direction below the document conveying portion and a document table and includes a unit housing in which a light source, an optical element, and an image sensor are mounted.
Kyocera Document Solutions Inc.
Distributed media access controller transmitting network coded cells via optical transmitters
In one embodiment, a method comprises receiving, by an apparatus, a media access control (mac) frame destined for a destination device; dividing, by the apparatus, the mac frame into frame fragments; coding the frame fragments into encoded cells; and causing, by the apparatus, transmission of selected subsets of the encoded cells, as distinct flows of the encoded cells, by respective optical physical layer transmitter devices reachable by the destination device.. .
Cisco Technology, Inc.
Method and creating virtual traffic engineering link
Provided is a method and apparatus for creating a virtual traffic engineering (te) link in an upper layer of an optical transport network (otn). To create a virtual te link, a node may determine to create the virtual te link in an upper layer of an otn, and may set up a forwarding adjacency (fa)-label switched path (lsp) between nodes in an otn layer.
Electronics And Telecommunications Research Institute
Optical channel data unit switch with distributed control
An optical channel data unit (odu) switch includes a set of two or more client cards, a set of two or more line cards, and a set of two or more switch cards. Each switch card is connected to all client cards, all line cards, and all other switch cards, and each client card, line card and switch card includes control logic for managing an operation of the odu switch in a distributed manner..
Mitsubishi Electric Research Laboratories, Inc.
Described herein is a multi-level to binary converter in which a cascade of differential limiting amplifiers are utilised for each signal path to provide both increased gain and increased bandwidth without having to trade one off against the other. Where the multi-level data is duobinary, cascaded amplifiers are coupled to a xor logic gate.
Polarization state detector, optical transmitter, and optical receiver
An optical transmitter transmits optical signal including a first signal and a second signal. The second signal is subjected to change in a polarization state relative to a polarization state of the first signal.
Subsea optical communication system dual polarization idler
Systems and methods are disclosed including a subsea link idler apparatus comprising at least one data laser generating a first laser beam as a data signal, having a first frequency within a first data channel bandwidth slot; a first continuous wave laser generating a second laser beam with a first polarization and a second frequency being within a second data channel bandwidth slot; a second continuous wave laser generating a third laser beam with a second polarization different from the first polarization and a third frequency being offset from the second frequency and being within the second data channel bandwidth slot; a polarization beam combiner positioned in paths of the second and third laser beams combining the second and third laser beams into an idler signal; and a transmitter receiving and transmitting the data signal and idler signal.. .
Optical transmission apparatus, optical transmission system, and optcial transmission method
An optical transmission apparatus includes a frame demultiplexer configured to demultiplex a frame signal, and a transmission process unit configured to modulate the frame signal demultiplexed by the frame demultiplexer to a plurality of subcarrier signals of different wavelengths and transmit the plurality of subcarrier signals, wherein the transmission process unit switches the subcarrier signal that is one of the plurality of subcarrier signals and at which a failure is detected to a subcarrier signal of a backup wavelength different from wavelengths of the plurality of subcarrier signals.. .
Configurable frequency domain equalizer for dispersion compensation of multiple sub-carriers
A system may include an optical transmitter and an optical receiver. The optical transmitter may generate optical signals associated with sub-carriers, and may provide the optical signals via an optical link.
Transmission device and optical transmission system
A transmission device that receives an optical signal on which a frequency modulated signal is superimposed includes: an optical filter configured to filter the optical signal; a filter controller configured to control a passband of the optical filter based on a change of power of the optical signal; and a signal detection unit configured to detect the frequency modulated signal based on the change of the power of the optical signal filtered by the optical filter.. .
Visible light communication system
In a visible light communication system including a transmission device and a receiving device arranged separately in a vertical direction and provided so as to relatively move in a horizontal direction, which transmits data from the transmission device to the receiving device by optical space transmission using visible light, the transmission device includes a first light emitting part outputting visible light, and the first light emitting part has a light source emitting visible light and a correction part correcting the light radiated from the light source so as to uniform a light intensity distribution on a horizontal plane. Even when the transmission device and the receiving device arranged separately in the vertical direction relatively move in a horizontal direction, data can be stably transmitted and received by the optical space transmission using visible light..
Daitron Technology Co., Ltd.
Optical interconnection device
An optical interconnection device for transmitting and receiving an optical signal between a plurality of laminated semiconductor substrates. The optical interconnection device has a plurality of light emitting elements or a plurality of light receiving elements arranged in one of the semiconductor substrates that have pn junction parts using the semiconductor substrate as a common semiconductor layer.
V Technology Co., Ltd.
Frequency and phase compensation for modulation formats using multiple sub-carriers
An optical receiver may receive input signals carried by respective sub-carriers. The optical receiver may determine, based on the input signals, a compensation value to be used to modify an input signal.
Optical modulator and operating point control method
An optical modulator includes an optical phase modulator which applies an operating voltage to at least one arm so as to modulate an optical phase of an optical signal transmitted via at least one arm and an optical phase adjuster which applies a voltage below the operating voltage to at least one arm so as to adjust an operating point. In the optical phase adjuster, an optical phase coarse adjuster applies a voltage below the operating voltage to at least one arm so as to change an optical phase of an optical signal by 180° or more, while an optical phase fine adjuster applies a voltage below the operating voltage to at least one arm so as to changer an optical phase of an optical signal by 90° or less.
Optical transmission system, optical phase modulator, and optical modulation method
The optical transmission system incudes signal output means (11s) for outputting a drive signal according to an input signal to the first optical modulator (11a), first waveform shaping signal output means (12s) for outputting a first waveform shaping signal to the second optical modulator (10a), and second waveform shaping signal output means (13s) for outputting a second waveform shaping signal to the third optical modulator (13a). The first waveform shaping signal is output to the second optical modulator (10a) at a timing relatively later than a timing of an output of a signal by the first optical modulator (11a).
Optical signal conversion device and method thereof
The present invention relates to a device and a method for conversion from optical double-sideband modulation signals to optical single-sideband modulation signals. Period-one nonlinear dynamics of semiconductor lasers is utilized to achieve such optical signal conversion.
National Cheng Kung University
An optical transceiver according to an exemplary aspect of the invention includes an interferometer including an input-side optical coupler, an output-side optical coupler, and two arms through which to propagate light and disposed between the input-side optical coupler and the output-side optical coupler, adding a bias phase difference of approximately π/2+2nπ, n representing an integer, between light beams propagating through the two arms; an optical phase modulator generating an optical signal obtained by modulating a phase of continuous wave light to be inputted depending on an electrical signal to be inputted; and an optical delay device making a difference in time for which the optical signal modulated by the optical phase modulator reaching the output-side optical coupler, wherein the optical phase modulator operates by changing carrier density in a silicon optical waveguide.. .
Rack level pre-installed interconnect for enabling cableless server/storage/networking deployment
Apparatus and methods for rack level pre-installed interconnect for enabling cableless server, storage, and networking deployment. Plastic cable waveguides are configured to couple millimeter-wave radio frequency (rf) signals between two or more extremely high frequency (ehf) transceiver chips, thus supporting millimeter-wave wireless communication links enabling components in the separate chassis to communicate without requiring wire or optical cables between the chassis.
Long distance multi-mode communication
An optical line terminal (olt) comprising a receiver configured to couple to a mode coupler via a multi-mode optical fiber that supports more than one optical communication mode, and couple to a plurality of optical network units (onus) via the mode coupler, a processor coupled to the receiver and configured to schedule upstream multi-mode transmissions from the onus via the multi-mode fiber and the mode coupler by employing time division multiplexing (tdm), and a transmitter coupled to the processor and configured to transmit schedule data to the onus.. .
Futurewei Technologies, Inc.
Lighting apparatuses and led modules for both illumination and optical communication
Lighting apparatuses and led modules capable of both illumination and data transmission are disclosed. An exemplifying lighting apparatus has a led module and a modulator.
Optical beat interference detection and mitigation
An obi manager provides the reduction/elimination of optical beat interference (obi). As will be described in more detail below, the obi manager identifies obi partners through an identification process performed via an rfog network.
Arris Enterprises, Inc.
Optical communication apparatus controlling received optical intensity with gain-switchable optical amplifier
In an optical network unit, an optical-intensity monitor monitors the received optical intensity of a received light beam input thereto, and a controller uses the received optical intensity to produce an intensity control signal, in response to which a semiconductor optical amplifier selectively amplifies or attenuates the optical intensity of the received light to produce an intensity-adjusted light beam, which a receiver can receive within its receivable-intensity range.. .
Oki Electric Industry Co., Ltd.
Estimating phase using test phases and interpolation for modulation formats using multiple sub-carriers
An optical receiver may receive input signals carried by sub-carriers, and may apply test phases to each input signal. The optical receiver may determine error values, associated with test phases, for each input signal.
Apparatus and distinguishing among non-reflective faults on optical link
A method of analyzing an optical link fault includes: determining whether a peak is present on an optical time domain reflectometry (otdr) trace; in response to a determination that there is the peak on the otdr trace, determining a fault as a reflective fault; in response to a determination that there is no peak on the otdr trace, determining that the fault is a non-reflective fault; and reporting the optical link fault analysis result.. .
Electronics And Telecommunications Research Institute
Fiber optic sensing detecting stator slot temperatures and stator including such apparatus
A sensing apparatus (20) based on fiber optics including fiber gratings for monitoring stator slot temperatures in an electromotive machine (10) is provided the apparatus may include a dielectric strip (22) to be received in a gap between a first stator bar (16) and a second stator bar (18) in a stator slot (14) one or more optical fibers (24, 25) may be disposed in the dielectric strip and extend along a longitudinal axis of the dielectric strip a plurality of sites 28 in the optical fiber include a respective fiber bragg grating arranged to have a respective optical response in a wavelength spectrum indicative of a value of temperature at the grating site. .
Siemens Energy, Inc.
Systems, methods, and devices for optical wireless charging
A system and method for wirelessly charging a chargeable device is provided. In one aspect, the method includes detecting a presence of a chargeable device within a charging region of the optical charger.
Intelligent support box for electric hybrid switches, power outlets and combinations thereof
A method and apparatus for attaching at least one wiring device comprising ac outlet, switch, relay, hybrid switch-relay and hybrid switch to a support box using pins and receptacle including locking structure for attaching by introduction of the device into the box. The box including intelligent control and communication circuits including rf, rfid, optical via pof and ir in line of sight for communicating commands and control including power consumption reporting from every outlet and device.
Elbex Video Ltd.
Multiplexer, multiplexing method, and ld module
A multiplexer includes: an output section outputting a beam bundle made of a plurality of laser beams whose f-axis directions are aligned; and an f-axis converging lens causing the beam bundle outputted from the output section to be converged in the f-axis direction. optical axes of the plurality of laser beams constituting the beam bundle outputted from the output section intersect with each other at a single point without relying on the f-axis converging lens..
Vertical integration of a hybrid optical source
A hybrid optical source includes a substrate with an optical amplifier (such as a iii-v semiconductor optical amplifier). The substrate is coupled at an angle (such as an angle between 0 and 90°) to a silicon-on-insulator chip.
Oracle International Corporation
Single-step-grown transversely coupled distributed feedback laser
A surface corrugated grating is formed above the waveguide. The heteroepitaxial structure is designed so that the core layer is placed in close proximity to the top of the laser structure to provide a required overlap between the light and the grating.
Optical amplification device and optical amplification method
An optical amplification device includes: a port group that has a plurality of ports that have a semiconductor optical amplifier and a port that does not have a semiconductor optical amplifier, an optical burst signal being input into each of the ports at a different timing; and a control unit, wherein: when an optical inputting into the port that has the semiconductor optical amplifier is detected, the control unit activates the semiconductor optical amplifier of the port where the optical inputting is detected, inactivates the other semiconductor optical amplifier and remains an activation until another optical inputting is detected in another semiconductor optical amplifier; and when an optical inputting into the port that does not have the semiconductor optical amplifier is detected, the control unit inactivates the semiconductor optical amplifiers of the plurality of the ports that have the semiconductor optical amplifier.. .
An optical apparatus comprises a package containing an optical device and having a front end face provided with a through window part 11 to which an optical fiber optically connected to the optical device is attached, a base having an attachment surface for attaching the package, a first extension arranged so as to project from the front end face along the attachment surface, and a package securing member having a tilted surface adapted to abut against the package so as to generate a force for pressing the package against the base. The package securing member is independent of the package..
Sumitomo Electric Device Innovations, Inc.
Optical semiconductor device and controlling driving circuit
An optical semiconductor device includes: an electric-optic conversion element that is provided with a diode; and a driving circuit that drives the diode in a forward direction, the driving circuit including a first switching circuit that is provided with a first switch, and a second switching circuit that is provided with a second switch, wherein the first switching circuit constitutes a first signal line that charges the electric-optic conversion element with an electric charge by bringing the first switch into an on state and the second switch into an off state, and the second switching circuit constitutes a second signal line that discharges the electric charge stored in the electric-optic conversion element by bringing the second switch into an on state and the first switch into an off state.. .
Low cost optical package
An optical package having a patterned submount, an optoelectronic device mounted to the patterned submount, a spacer affixed on one side to the patterned submount, the spacer having a bore hole therethrough wherein the optoelectronic device is positioned, and an optical element affixed to the spacer on a side opposite the patterned submount and covering the spacer bore hole. The patterned submount may be a circuit board.
An optical amplifier includes an optical amplifying unit, a splitting unit, and a loss adjusting unit. The optical amplifying unit provides gain to wavelength multiplexed light received from a transmission line, to amplify light intensity.
Self-monitoring controlled optical component system
A self-monitored controlled optical component system may include an electrostrictive actuator, a capacitor matched in capacitance to the electrostrictive actuator, a current source connected to the electrostrictive actuator and to the capacitor that supplies an electric current to the electrostrictive actuator and to the capacitor, an optical element connected to be moved by the electrostrictive actuator, and a comparator connected to receive a first output current from the electrostrictive actuator and a second output current from the capacitor, and output a differenced sensoriactuator signal proportional to the difference between the first output current and the second output current, the sensoriactuator signal representing a current associated with movement of the optical element by the electrostrictive actuator.. .
The Boeing Company
Bridge fiber, combiner, and fiber laser device
A bridge fiber includes a core layer and an outer layer which has an index of refraction higher than that of the core layer and covers the outer peripheral surface of the core layer. The outer layer is surrounded by a substance such as the atmosphere having an index of refraction lower than an index of refraction n2 of the outer layer.
Optical fiber and fiber laser apparatus using same
An optical fiber propagates a light beam at a predetermined wavelength at least in an lp01 mode and an lp02 mode. A dopant that changes a young's modulus is doped to at least a part of a waveguide region 12a of a cladding 12 through which a light beam at a predetermined wavelength is propagated and to a region 11b in a core 11 in which the intensity of the light beam in the lp01 mode is greater than the intensity of the light beam in the lp02 mode.
Optical fiber laser and manufacturing an optical fiber laser
A laser includes an optical fiber having two ends of which a first end is configured to receive light therethrough, and a doped section configured to absorb at least part of the light received by the first end and for emitting light. The laser further includes a heat-conducting material which coats at least the doped section of the optical fiber..
Commissariat A L'energie Atomique Et Aux Energies Alternatives
Chip to dielectric waveguide interface for sub-millimeter wave communications link
In some developing interconnect technologies, such as chip-to-chip optical interconnect or metal waveguide interconnects, misalignment can be a serious issue. Here, however, a interconnect that uses an on-chip directional antenna (which operates in the sub-millimeter range) to form a radio frequency (rf) interconnect through a dielectric waveguide is provided.
Texas Instruments Incorporated
Method for monitoring/managing electrochemical energy device by detecting intercalation stage changes
A method for determining an operating state (e.g., state-of-charge or state-of-health) and/or generating management (charge/discharge) control information in a system including an electrochemical energy device (eed, e.g., a rechargeable li-ion battery, supercapacitor or fuel cell) that uses optical sensors to detect the intercalation stage change events occurring in the eed. The externally or internally mounted optical sensors measure operating parameter (e.g., strain and/or temperature) changes of the eed during charge/recharge cycling, and transmit measured parameter data using light signals sent over optical fibers to a detector/converter.
Palo Alto Research Center Incorporated
Light emitting device and manufacturing light emitting device
A dielectric layer (170) faces a surface of alight transmissive electrode (120) opposite to a surface facing an organic functional layer (110). Then, a light transmissive substrate (140) faces a surface of the dielectric layer (170) opposite to a surface facing the light transmissive electrode (120).
Organic el panel translucent substrate, control refractive index anisotropy of organic el panel translucent substrate, manufacturing organic el panel translucent substrate, organic el panel, and organic el device
Disclosed is an organic el panel translucent substrate that can prevent or reduce the color gap/coloring of an organic el panel. In order to achieve the above object, organic el panel translucent substrate 201 is formed of resins 203 and 204 and is substantially optically isotropic in its in-plane direction and thickness direction..
Nec Lighting, Ltd.
Semiconductor light emitting device
According to one embodiment, the second insulating film is provided between the first interconnect portion and the second interconnect portion, and at an outer periphery of a side face of the semiconductor layer. The optical layer is provided on the first side, and on the second insulating film at the outer periphery.
Kabushiki Kaisha Toshiba
Semiconductor light emitting device
According to one embodiment, the second insulating film is provided between the first interconnect portion and the second interconnect portion, and at an outer periphery of a side face of the semiconductor layer. The optical layer is provided on the first side and on the second insulating film at the outer periphery.
Kabushiki Kaisha Toshiba
Semiconductor infrared photodetectors
A semiconductor device capable of enhanced sub-bandgap photon absorption and detection is described. This semiconductor device includes a p-n junction structure formed of a semiconductor material, wherein the p-n junction structure is configured such that at least one side of the p-n junction (p-side or n-side) is spatially confined in at least one dimension of the device (e.g., the direction perpendicular to the p-n junction interface).
The Regents Of The University Of California
Quantum dot optical devices with enhanced gain and sensitivity and methods of making same
Various embodiment include optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit having an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions.
Invisage Technologies, Inc.
Method of passivating a silicon substrate for use in a photovoltaic device
A method of passivating a silicon substrate for use in a photovoltaic device, comprising providing a silicon substrate having a bulk and exhibiting a front surface and a rear surface, and forming by liquid phase application a dielectric layer on at least said rear surface. The dielectric layer formed at the rear surface is capable of acting as a reflector to enhance reflection of light into the bulk of the silicon substrate, and the dielectric layer is capable of releasing hydrogen into the bulk as well as onto a surface of the silicon substrate in order to provide hydrogenation and passivation.