Abstract: A multi-mode interferometric optical waveguide device includes: a multi-mode interferometric optical waveguide which includes a first reflective surface; a first single-mode waveguide connected to the multi-mode interferometric optical waveguide; and a second single-mode waveguide connected to the multi-mode interferometric optical waveguide and oppose the first reflective surface. Consequently, the multi-mode interferometric optical waveguide device can propagate light from the first single-mode waveguide to the second single-mode waveguide, with further reduced optical losses.

Abstract: A method of forming an imaging fibre apparatus comprises: •arranging core rods 102 and cladding rods 104 to form at least one primary stack 100a, each primary stack 100a comprising a plurality of core rods 102 and cladding rods 104 arranged in a stack arrangement thereby to form a plurality of core regions within a cladding region; •performing a drawing process to form a plurality of drawn stacks from the at least one primary stack; •wherein the plurality of core rods and cladding rods are further arranged to have a selected shape such that the plurality of stacks stack together in a desired arrangement and wherein the stack arrangement comprises an at least partial outer layer of cladding rods thereby to provide separation between core regions of respective adjacent stacks when stacked in the desired arrangement, the method further comprising: •stacking the plurality of drawn stacks together in the desired arrangement to form a further stack; •drawing the further stack; and •using the drawn further stack to

Abstract: An endoscope including an elongated shaft. The elongated shaft including: an inner shaft tube in which an optical system is received; an outer shaft assembly including an outer shaft tube and a tubular support body proximally abutting the outer shaft tube; at least one bundle of optical fibers disposed between the inner shaft tube and the outer shaft tube; and an electrical connector arranged between the inner shaft tube and the support body. Where the support body includes at least a first web and a second web each extending radially between an inner surface of the support body and an outer surface of the inner shaft tube, the first web and the second web also extending in a longitudinal direction of the shaft such that an annular space between the inner shaft tube and the support body is divided into at least two segments.

Abstract: A light detection and ranging (LIDAR) apparatus is provided that includes an optical source to emit an optical beam towards a target and a mode field expander operatively coupled to the optical source to expand a mode area of the optical beam from a first mode of a single mode optical fiber to a second mode of a larger mode area optical fiber.

Abstract: An optical fiber protective unit includes: a reticulated tube; and a tubular member that is inserted through the reticulated tube and that is configured to accommodate a plurality of optical fibers. The reticulated tube is disposed on an outer periphery of the tubular member in a state folded in a longitudinal direction. Both end parts of the reticulated tube are located on the outer periphery of the tubular member.

Abstract: A transparent display includes a display including a transparent substrate and a patterned diamond layer formed on the transparent substrate to at least in part define a diamond waveguide. At least two electronic devices can be connected by the diamond waveguide, and can include a sensor, a transducer, or electronic circuitry, including communication, control, or data processing electronic circuitry.

Abstract: A multi core optical fiber that includes a plurality of cores disposed in a cladding. The plurality of cores include a first core and a second core. The first core has a first propagation constant ?1, the second core has a second propagation constant ?2, the cladding has a cladding propagation constant ?0, and (I).

Abstract: A remote indicator system comprising a housing and a display unit located remotely from the housing. The housing comprises a first light source and a first end of an end-emitting fibre optic cable. The display unit comprises a second end of the fibre optic cable. The housing includes manual switching means configurable to allow light from the first light source to pass into the first end of the optical fibre cable and further configurable to prevent light from the first light source from passing into the first end of the optical fibre cable.

Abstract: Various products that are used to align objects and features in an area are shown. In one example, a laser target provides optical communication between a target area of the laser target and a non-target area that is offset from the target area. Some light emitted towards the target area will be redirected to emit from the non-target area, and some light emitted towards the non-target area will be redirected to emit from the target area. In another example, a laser target includes reflective portions and non-reflective portions that facilitate aiming a laser target towards a center of the laser target.

Abstract: A substrate support assembly comprises a first optical receiver, a power converter, a first circuit, and a first optical transmitter, all embedded in the substrate support assembly. The first optical receiver is configured to receive a first optical signal and a first optical data through a fiber optic cable. The power converter is configured to generate DC power based on the first optical signal and the first optical data received by the first optical receiver. The first circuit is configured to receive the DC power from the power converter and to receive a second data from a sensor disposed in the substrate support assembly in response to the first optical data. The first optical transmitter is configured to transmit the second data as a second optical data through the fiber optic cable.

Abstract: A laser machining device includes a plurality of optical fibers and a collimator lens arranged in parallel along a supply nozzle for supplying a molten material, and a laser beam projected from the optical fiber is applied onto an axis between a tip of the supply nozzle and a build-up welding spot.

Abstract: The present disclosure provides an apparatus for generating fiber delivered laser-induced white light. The apparatus includes a package case enclosing a board member with an electrical connector through a cover member and a laser module configured to the board member inside the package case. The laser module comprises a support member, at least one laser diode device configured to emit a laser light of a first wavelength, a set of optics to guide the laser light towards an output port. Additionally, the apparatus includes a fiber assembly configured to receive the laser light from the output port for further delivering to a light head member disposed in a remote destination. A phosphor material disposed in the light head member receives the laser light exited from the fiber assembly to induce a phosphor emission of a second wavelength for producing a white light emission substantially reflected therefrom for various applications.

Abstract: In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.

Abstract: An optical interconnect may provide for optical communications between two IC chips. The optical interconnect may include an array of optoelectronic elements, for example microLEDs and photodetectors, with the array including a plurality of sub-arrays. A fiber bundle of optical fibers may couple the optoelectronic elements, and the fiber bundle may include a plurality of sub-bundles, with for example one sub-bundle for coupling pairs of sub-arrays. Fibers of each sub-bundle may be accurately positioned with respect to one another.

Abstract: Systems and methods for improving the brightness of a transparent display are disclosed herein. One embodiment collects ambient light using an array of metasurface lenses disposed on an external surface of a vehicle; collects internal light from the vehicle's headlights; filters the ambient light and the internal light to produce filtered ambient light and filtered internal light; generates primary-source light using a light-emitting-diode (LED) light source; and injects, into a transparent edge-lit liquid crystal waveguide display deployed in at least a portion of a window of the vehicle, the primary-source light, the filtered ambient light, and the filtered internal light in a color-synchronized manner. The filtered ambient light and the filtered internal light improve the brightness of the transparent edge-lit liquid crystal waveguide display.

Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to

Abstract: A therapeutic light delivery apparatus and method are disclosed. The apparatus includes a light source, a plurality of light emitting devices paired with a plurality of light detecting devices, wherein each of the light emitting devices is in optical communication with a channel of a delivery optical switch and each of the plurality of light detection devices is in optical communication with a channel of a detection optical switch. The plurality of light emitting devices are fixedly positioned within an applicator light flap. The system further includes an optical detector in optical communication with the detector optical switch. The system further includes an opto-electronic controller that controls delivery optical switch, the detector optical switch and the light source.

Abstract: Provided is a multi-channel light-receiving module, which comprises an incident collimator, a light-splitting assembly, an optical path conversion assembly and a photoelectric chip array which are arranged in sequence, wherein the light-splitting assembly comprises an inner reflector and a plurality of optical filters, and the optical filters are respectively arranged on an output end of the inner reflector; the channel interval of photoelectric chips in the photoelectric chip array is less than the channel interval of an adjacent optical filter; the optical path conversion assembly comprises a plurality of emergent collimators and an optical fiber connected to each of the emergent collimators; a plurality of paths of optical signals output by the light-splitting assembly are respectively coupled into corresponding optical fibers after passing through the plurality of emergent collimators; and the plurality of paths of optical signals are output by output ends of the plurality of optical fibers and are then c

Abstract: The present invention generally relates to a medical device and a method of using a medical device. Specifically, the invention relates to a tube introducing device designed to introduce catheters, endoscopes and the like medical devices into organs and body lumens during procedures such as esophageal manometry, esophageal pH tests, and the placement of trans-nasal feeding tubes and a method of use thereof.

Abstract: Optical chip-to-chip interconnects may use microLEDs as light sources. The interconnected chips may be on a same substrate. A pair of endpoint chips may each have associated optical transceiver subsystems, with transceiver circuitry in transceiver chips. Optical communications may be provided between the optical transceiver subsystems, with the optical transceiver subsystems in communication with their associated endpoint chips by way of metal layers in the substrate.

Abstract: An underwater imaging system is carried by a submersible platform to capture images that are processed into three-dimensional images stitched together to create a 3D dimensional video at video rate speeds that are transmitted to a control unit above the surface of the water. The imaging system utilizes a high speed image sensor or camera to capture sequential gated images that are synced via a gating module to two sequential laser beam pulses. The laser beam pulses illuminate an object in each gated image. When the object is within a gate overlap region, the two images may be processed using 3D imaging techniques to generate a 3D representation of the object in the overlap region of the two gates.

Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens that focuses light from a scene toward a focal plane. The system also includes an aperture defined within an opaque material. The system also includes a plurality of waveguides. A given waveguide of the plurality has an input end that receives a portion of light transmitted through the aperture, and guides the received portion toward an output end of the given waveguide. A cross-sectional area of the guided portion at the output end is greater than a cross-sectional area of the received portion at the input end. The system also includes an array of light detectors that detects the guided light transmitted through the output end.

Abstract: A waveguide grating antenna apparatus includes a substrate layer, an asymmetric waveguide array layer upon the substrate layer, and a waveguide grating array layer formed above the asymmetric waveguide array layer. The waveguide array layer is composed of two forms of waveguide structures arranged in parallel. Each waveguide of the first form extends continuously, has a first width, and is laterally separated from each adjacent waveguide of the first form by a gap distance. Each waveguide of the second form extends parallel to and between adjacent waveguides of the first form within the first gap distance and is narrower than each of the first width and the gap distance. Pairs of the second form are closer to lateral sides of a first alternating set of the first form. The waveguide grating is composed of adjacent, separated elements extending axially along each waveguide of the first form.

Abstract: A component assembly for a LIDAR sensor including a stator; a rotor; a detector system having at least one first detector; and a first optical waveguide including an input and an output and light-conducting fibers, the first optical waveguide being situated inside the rotor and disposed so as to be able to rotate along with the rotor, and the first optical waveguide is developed to receive a first light beam coming from a surrounding area via the input at the light-conducting fibers and to guide them via the light-conducting fibers out of the output in the direction of the first detector.

Abstract: A therapeutic light delivery apparatus and method are disclosed. The apparatus includes a light source and an integrated optical applicator. The integrated optical applicator includes a plurality of light emitting devices and detector fibers fixedly spatially positioned within a flexible matrix material. The light emitting devices can be positioned a predetermined distance from an application side of the integrated optical applicator comprising an accurate and repeatable standoff position. A flexible matrix material is disclosed having a high scattering coefficient to produce a uniform irradiance pattern and predetermined fluence.

Abstract: A power and optical fiber interface system includes a housing having an interior. A cable inlet is configured to receive a hybrid cable having an electrical conductor and an optical fiber. An insulation displacement connector (IDC) is situated in the interior of the housing configured to electrically terminate the conductor, and a cable outlet is configured to receive an output cable that is connectable to the IDC and configured to output signals received via the optical fiber.

Abstract: A transparent display includes a display including a transparent substrate and a patterned diamond layer formed on the transparent substrate to at least in part define a diamond waveguide. At least two electronic devices can be connected by the diamond waveguide, and can include a sensor, a transducer, or electronic circuitry, including communication, control, or data processing electronic circuitry.

Abstract: Disclosed herein are methods, structures, apparatus and devices for the termination of unused waveguide ports in planar photonic integrated circuits with doped waveguides such that free-carrier absorption therein may advantageously absorb any undesired optical power resulting in a significant reduction of stray light and resulting reflections.

Abstract: A resin composition comprises a base resin containing an urethane (meth)acrylate oligomer, a monomer having a phenoxy group, and a photopolymerization initiator, and hydrophobic inorganic oxide particles, wherein the viscosity is 300 mPa·s or more and 4200 mPa·s or less at 45° C. and the content of the monomer having a phenoxy group is 1% by mass or more and 30% by mass or less based on the total amount of the base resin.

Abstract: The present disclosure relates to a gain optical fiber heat-dissipating device for high power ultra-fast laser, including a gain optical fiber and a heat-dissipating structure. The heat-dissipating structure includes a metal tube, a flexible heat-conducting layer and a water-cooling structure. The gain optical fiber is passed through the metal tube, and the flexible heat-conducting layer is provided between the metal tube and the gain optical fiber. The water-cooling structure is provided on the metal tube to reduce temperature of the gain optical fiber. The gain optical fiber heat-dissipating device according to the present disclosure can dissipate the heat through a water-cooling mode, and realize rapid heat dissipation, thus improving heat-dissipating efficiency.

Abstract: In some implementations, a fiber optic combiner may comprise an enclosing tube having a geometric shape and multiple optical fibers bundled within the enclosing tube. In some implementations, the multiple fibers comprise at least one optical fiber having a core and a non-circular cladding surrounding the core. The non-circular cladding may cause the multiple optical fibers to have a larger tube fill factor and a lower expected beam parameter product increase factor relative to the multiple optical fibers all having circular claddings.

Abstract: An electronic device may have a housing. The housing may be characterized by a vertical axis and may have housing structures such as cylindrical housing structures with a cylindrical surface. A speaker may be mounted in the housing to provide sound through openings in the housing structures. A visual output device may be mounted in the housing to provide light through openings in the housing structures. The visual output device may include an electrophoretic display, a light-emitting diode display, or other display with an array of pixels that display images or may include other components for emitting light. During operation, voice commands may be received by a microphone in the device and action taken based on the commands and other information. The action taken may include playing sound with the speaker and providing visual output with the visual output device.

Abstract: The present disclosure provides an apparatus for generating fiber delivered laser-induced white light. The apparatus includes a package case enclosing a board member with an electrical connector through a cover member and a laser module configured to the board member inside the package case. The laser module comprises a support member, at least one laser diode device configured to emit a laser light of a first wavelength, a set of optics to guide the laser light towards an output port. Additionally, the apparatus includes a fiber assembly configured to receive the laser light from the output port for further delivering to a light head member disposed in a remote destination. A phosphor material disposed in the light head member receives the laser light exited from the fiber assembly to induce a phosphor emission of a second wavelength for producing a white light emission substantially reflected therefrom for various applications.

Abstract: A fiber optic assembly is provided including a support substrate having a substantially flat surface and a signal-fiber array supported on the support substrate. The signal-fiber array includes a plurality of optical fibers. At least some of the optical fiber of the plurality of optical fibers includes a first datum contact disposed between the optical fiber and an adjacent optical fiber and each of the optical fibers of the plurality of optical fibers includes a second datum contact disposed between each of the optical fibers of the plurality of optical fibers and the support substrate. A first datum surface is disposed at a top surface of each of the plurality of optical fibers opposite the support surface.

Abstract: The present disclosure describes a method and apparatus of measuring dynamic light scattering of a sample. In an embodiment, the apparatus includes a platen, a light source underneath the platen and configured to emit emitted light through the platen and into the sample, collector optics underneath the platen and configured to capture scattered light, and an optical absorber configured to be in contact with the sample, configured to absorb transmitted light, and configured to redirect reflected light away from the collector optics. In an embodiment, the method includes depositing a sample on a platen, emitting emitted light from a light source underneath the platen through the platen and into the sample, capturing via collector optics underneath the platen scattered light, contacting the sample with an optical absorber, absorbing via the absorber transmitted light, and redirecting via the absorber reflected light away from the collector optics.

Abstract: An apparatus for manufacturing a composite article from a composite material. The apparatus comprising: a pulsed broadband radiation source comprising a flashlamp and a light guide adapted to guide light emitted by the pulsed broadband radiation source to a target area. The light guide comprises at least a portion ahead of the pulsed broadband radiation source, relative to the target area, comprising a light transmitting material.

Abstract: An electronic device may have a display, a display cover layer, and a drawn sheet-packed coherent fiber bundle. The coherent fiber bundle may have an input surface that receives an image from the display and a corresponding output surface to which the image is transported. The coherent fiber bundle may be placed between the display and the display cover layer and mounted to a housing. The coherent fiber bundle may have fiber cores with bends that help conceal the housing from view and make the display appear borderless. The coherent fiber bundle has filaments formed from elongated strands of binder in which multiple fibers are embedded. Sheets of filaments are stacked and fused together to form a block of material that is subsequently drawn to form the drawn sheet-packed coherent fiber bundle.

Abstract: Incoherently combining light from different lasers while maintaining high brightness is challenging using conventional fiber bundling techniques, where fibers from different lasers are bundled adjacently in a tight-packed arrangement. The brightness can be increased by tapering the tips of the bundled fibers to match a single, multi-mode output fiber, e.g., one whose core that is just wide enough to fit the input cores. This increases the brightness of the beam combining. In addition, reducing the outer diameters of the signal fiber claddings allows the signal fibers to be bundled closer together, making it possible to couple more signal fiber cores to the core of a multi-mode output fiber. Similarly, reducing the outer diameter of the pump fiber cladding and/or etching away corresponding portions of the signal fiber cladding in a pump/signal combiner makes it possible to couple more pump light into the signal fiber cladding, again increasing brightness.

Abstract: A LIDAR system includes a demultiplexer that separates an outgoing LIDAR signal into multiple LIDAR output signals that each carries a different channel and the different channels are each at a different wavelength. The system also includes a beam distributor that receives each of the LIDAR output signals. The beam distributor directs the received LIDAR output signals such that different LIDAR output signals travel away from the beam distributor in different directions.

Abstract: An optical fiber may include a core in which core-guided light generated by one or more light sources propagates along a length of the at least one optical fiber, one or more claddings, surrounding the core, to guide cladding-guided light generated by the one or more light sources along the length of the at least one optical fiber, and a reflector structure machined into the at least one optical fiber. The reflector structure may include multiple angled facets arranged at one or more respective angles relative to an axis of the optical fiber to reflect at least a portion of the core-guided light and/or the cladding-guided light passing through the optical fiber.

Abstract: At least a portion of an integrated circuit wafer includes at least one layer in which two or more waveguides are formed. A cavity is formed in the integrated circuit wafer. At least one die, comprising a photonic integrated circuit, has: at least one edge on which there are two or more optical mode defining structures in proximity to respective optical mode defining structures on at least one surface of the cavity, a bottom surface secured to a bottom surface of the cavity, and a top surface on which there is at least one metal contact.

Abstract: An illuminated microsurgical instrument comprises a distally projecting tubular member arranged to perform a medical procedure at an interventional site, a sheath member surrounding a portion of the tubular member, and an optical fiber extending along a length of the outer surface of the tubular member between the tubular member and the sheath member. A method of manufacturing an illuminated microsurgical instrument comprises placing an optical fiber on a positioning member, placing a sheath member around the optical fiber and positioning member and securing the sheath member to the optical fiber, removing material from a distal end of the sheath member and optical fiber at a non-perpendicular angle with respect to a longitudinal axis of the positioning member, removing the positioning member from within the sheath member, and placing the sheath member with the optical fiber secured thereto around a distally projecting tubular member.

Abstract: An operation method of a remote laser projection device includes emitting a first light to an optical transmission module through at least one light source module; transmitting the first light to at least one projection head through the optical transmission module, wherein total light energy of the first light is allocated to the projection head through the optical transmission module, such that energy of a light transmitted to the projection device is E/N, and wherein E is total light energy of the at least one light module, and N is a number of the at least one projection device.

Abstract: A LIDAR transceiver includes an input port, optical antennas, an optical switch, splitters, and mixers. The optical switch switchably couples an input port to the optical antennas. For at least one optical path from the input port to one of the optical antennas, a splitter is coupled along the optical path. The splitter splits a received portion of a laser signal into a local oscillator signal and a transmit signal and outputs a return signal that is a portion of the reflected signal. The transmit signal is emitted through the optical antenna and a reflection of the transmit signal is received through the optical antenna as a reflected signal.

Abstract: Disclosed is an optical fiber illumination apparatus configured for ensuring high light efficiency and uniform luminosity when displaying an illumination pattern with flexible optical fibers in fiber optic lighting.

Abstract: A device for providing a 1D line of an image is disclosed. The device is based on a thin slab waveguide coupled to a beam redirecting device such as a tiltable mirror MEMS scanner, a waveguide-based phased array, or a waveguide-based optical switch switching image light between waveguides of a waveguide array coupled to a collimating element formed in the low-mode slab waveguide. The image may be formed by scanning a collimated beam propagating in the slab waveguide, or by forming the 1D singular distribution of brightness at a same time. The device may be used in a near-eye display for forming a 2D image in angular domain.

Abstract: A powering co-packaged networking system includes a powering co-packaged networking device coupled via a power/data cable to a powered device. The powering co-packaged networking device includes a connector subsystem coupled to a power controller device and an optical/electrical signal conversion processing system that converts between optical signals and electrical signals. The connector subsystem is connected to the powered device via a power/data connector on the power/data cable, and includes an optical signal sub-connector that receives optical signals from the optical/electrical signal conversion processing system and transmits the optical signals via the power/data connector on the power/data cable and through the power/data cable to the powered device, and a power sub-connector that receives power from the power controller device and transmits the power via the power/data connector on the power/data cable and through the power/data cable to the powered device.

Abstract: The present invention provides a display device including a display panel, a backlight module, and a microstructure layer. The microstructure layer has a base layer and a plurality of microstructure groups. Each microstructure group includes: a central structure with a central trapezoidal section, a first structure with a first trapezoidal section, and a second structure with a second trapezoidal section arranged on a second side of the central structure. Based on the height of the central trapezoidal section, the legs of the first trapezoidal section and the second trapezoidal section facing away from the central structure are more inclined than the legs of the first trapezoidal section and the second trapezoidal section toward the central structure. The longer baselines of the central trapezoidal section, the first trapezoidal section, and the second trapezoidal section are all closer to the backlight module than the shorter upperlines.

Abstract: Certain embodiments describe an endoilluminator comprising a probe housing an optical fiber. The probe comprises a distal end with an opening through which a first light from a distal end of the optical fiber is configured to be propagated. The probe comprises one or more side openings through which a second light from one or more sides of the optical fiber is configured to be propagated. The endoilluminator also comprises a handpiece coupled to a light source and the proximal end of the probe, wherein the light source is configured to drive light into the optical fiber.

Abstract: A pair of ground planes arranged in parallel, a dielectric medium disposed in between the pair of ground planes, and a set of at least four signal conductors disposed in the dielectric medium, the set of at least four signal conductors having (i) a first pair of signal conductors arranged proximate to a first ground plane of the pair of ground planes and (ii) a second pair of signal conductors arranged proximate to a second ground plane of the pair of ground planes, each signal conductor of the set of at least four signal conductors configured to carry a respective signal corresponding to a symbol of a codeword of a vector signaling code.