Abstract: An optical fiber distribution system may include a housing that includes an end cap unit, a main cabinet unit, and a fiber termination unit. The main cabinet unit may have a door that opens to provide access to the interior of the main cabinet unit, which may include a plurality of cassettes in a stacked arrangement within the main cabinet unit. The cassettes may be rotatably coupled to a cassette support so that, when the door is open, the cassettes may be individually rotated at least partially out of the main cabinet unit to provide access to the cassettes for maintenance. The fiber distribution system may be mountable to a strand so that the system hangs in a suspended state, and a plurality of the main cabinet units may be coupled to one another in a cascading fashion to provide increased cassette capacity.

Abstract: A method for transmitting an optical signal and an electrical signal and/or power in a borehole penetrating the earth includes transmitting the optical signal using a hybrid fiber optic cable disposed in the borehole, the hybrid fiber optic cable includes an optical fiber for transmitting the optical signal. The method also includes transmitting the electrical signal and/or power using the hybrid fiber optic cable, the hybrid fiber optic cable further includes (i) a first electrically conductive sheath circumferentially surrounding the optical fiber and having a first electrical connector and (ii) a second electrically conductive sheath circumferentially surrounding the first electrically conductive sheath and having a second electrical connector for transmitting the electrical signal and/or power.

Abstract: An image display device projecting an image to a user includes: an image generation unit that generates image light; a projection optical unit that projects the image light generated by the image generation unit; an image light duplication unit that duplicates and emits the image light projected by the projection optical unit; and a light-guiding unit that projects the image light duplicated by the image light duplication unit to a user, in which the projection optical unit includes at least one projection lens, and in which an interval at which the image light duplication unit duplicates the image light is smaller than an outer diameter of the projection lens.

Abstract: An optical fiber connector includes a connector housing module, a fastener, a linkage member, and a pull handle. The connector housing module includes at least one clip arm, and the connector housing module is adapted to be inserted into a target object and buckled to the target object by the clip arm. The fastener buckles the connector housing module. The linkage member is pivotally connected to the fastener and movably abuts against the clip arm. The pull handle movably passes between the fastener and the linkage member to be connected to the linkage member. When the connector housing module is inserted into the target object, the pull handle is adapted to be forced to drive the linkage member to pivot relative to the fastener and press against the clip arm, so as to remove a buckling state between the clip arm and the target object and pull the connector housing module out of the target object.

Abstract: A photonic device (100) comprising: an optical waveguide (101), and a modulating element (102) that is evanescently coupled to the waveguide (101); wherein the modulating element (102) modifies a transmission, reflection or absorption characteristic of the waveguide (101) dependant on its state, and the state of the modulating element (102) is switchable by an optical switching signal (125) carried by the waveguide (101), or by an electrical signal that heats the modulating element (102).

Abstract: A display device includes a frame and an image display device. The image display device includes an image forming device, a light guide device, and a lens system. The image forming device includes light emitting elements 300 arranged in a two-dimensional matrix. Each of the light emitting elements 300 has a laminated structure 301 including at least one layer of light emitting laminates 310, 320, and 330 each including a first electrode, a second electrode, and a light emitting layer provided between the first electrode and the second electrode. The laminated structure 301 has a through hole 360 through which light from the light emitting layer is emitted toward the lens system. An antireflection layer 370 is formed in a portion of the laminated structure facing the lens system.

Abstract: A micro-LED includes a light emitting device that emits a light beam surface—normally and a plurality of semiconductor layers that modify the light beam. Each semiconductor layer includes a first lateral region and a second lateral region, where the first lateral region and the second lateral region are characterized by different respective refractive indices. The first lateral regions of the plurality of semiconductor layers are arranged in two or more different lateral areas of the semiconductor light source. The second lateral region in each semiconductor layer of the plurality of semiconductor layers includes a semiconductor material with a different respective composition. The plurality of semiconductor layers form a planar optical component that is used to, for example, collimate, converge, diverge, or deflect the light beam emitted by the light emitting device.

Abstract: A pupil replication waveguide for a projector display includes a slab of transparent material for propagating display light in the slab via total internal reflection. A diffraction grating is supported by the slab. The diffraction grating includes a plurality of tapered slanted fringes in a substrate for out-coupling the display light from the slab by diffraction into a blazed diffraction order. A greater portion of the display light is out-coupled into the blazed diffraction order, and a smaller portion of the display light is out-coupled into a non-blazed diffraction order. The tapered fringes result in the duty cycle of the diffraction grating varying along the thickness direction of the diffraction grating, to facilitate suppressing the portion of the display light out-coupled into the non-blazed diffraction order.

Abstract: A virtual image display apparatus is provided, which includes a case member housing an image element, a lens barrel housing a projection lens serving as an optical system configured to receive imaging light emitted from the image element, and an elastic sealing member that covers a space between the case member and the lens barrel. With the elastic sealing member, position adjustment between the case member and the lens barrel is performed.

Abstract: Embodiments disclosed herein are directed to a device and system of devices including: a connector housing comprising an alignment sleeve therein with a plural of angled surface and at least one opening, or an internal cavity of said connector housing has the same configuration as said alignment sleeve. Upon inserting ferrule assembly within an opening of said housing, a contact point on a collar or flange of said assembly moves along angled surfaces until it engages an opening between angled surfaces for securing ferrule assembly within connector housing without jamming.

Abstract: A temperature compensation module mounted in an arrayed waveguide grating (AWG) comprises a base attached to the AWG and a moving member attached to the base, wherein the base comprises: a first fixing part attached to a first sub chip of the AWG; a second fixing part attached to a second sub chip of the AWG; a hole which is a gap between the first fixing part and the second fixing part, and is disposed to include, within the gap, a cut surface for dividing the AWG into the first sub chip and the second sub chip; and a ‘’-shaped elastic part, wherein the moving member is attached to the first fixing part so as to horizontally move the first sub chip of the AWG in the direction of decreasing central wavelength changes caused by temperature changes.

Abstract: A method for locally introducing a light emitter or a plasmonic element into a light guide is provided. The method (300) comprising the acts of: applying (302) a printing head (100) to a surface (204) of the light guide (202, 404), the printing head (100, 200) comprising an insertion portion (102) comprising the light emitter (106) or the plasmonic element and a heating element (108), heating (304) the heating element (108) such that a portion (205) of the surface (204) of the light guide (202, 404) is locally heated, pressing (306) the printing head (100, 200) into the light guide (202, 404) such that at least a portion (208) of the insertion portion (102) is inserted into the light guide (202, 404), introducing (308) the light emitter (106) or the plasmonic element (500) into the light guide (202, 404) via the insertion portion (102). A printing head (100, 200) for locally introducing a light emitter (106) or a plasmonic element (500) into a light guide (202, 404) is also provided.

Abstract: Methods and systems for an all-optical wafer acceptance test may include an optical transceiver on a chip, the optical transceiver comprising first, second, and third grating couplers, an interferometer comprising first and second phase modulators, a splitter, and a plurality of photodiodes. A first input optical signal may be received in the chip via the first grating coupler, where the first input optical signal may be coupled to the interferometer. An output optical signal may be coupled out of the chip via the second grating coupler for a first measurement of the interferometer. A second input optical signal may be coupled to a third grating coupler and a portion of the second input optical signal may be communicated to each of the plurality of photodiodes via the splitter. A voltage may be generated using the photodiodes based on the second input signal that may bias the first phase modulator.

Abstract: Provided is an optical module comprising a substrate, a holder, and a spacer. An optical waveguide is formed in/on the substrate and end parts thereof are protruding from one surface of the substrate. The holder holds an optical fiber and exposes one end part of the optical fiber in such a manner that the one end part of the optical fiber can be optically connected to the end parts of the optical waveguide at a side of one surface of the holder. The spacer is held the one surface of the substrate and the one surface of the holder.

Abstract: Photonic devices having Al1-xScxN and AlyGa1-yN materials, where Al is Aluminum, Sc is Scandium, Ga is Gallium, and N is Nitrogen and where 0<x?0.45 and 0?y?1.

Abstract: The present description provides multimode optical fibers with reduced cladding thickness. The optical fibers include a reduced-diameter glass fiber and/or reduced-thickness coatings. The overall diameter of the optical fibers is less than 210 ?m and examples with diameters less than 160 ?m are presented. Puncture resistant secondary coatings enable thinning of the secondary coating without compromising protection of the glass fiber. The optical fibers are suitable for data center applications and features high modal bandwidth, low attenuation, low microbending sensitivity, and puncture resistance in a compact form factor.

Abstract: An optical communication device is provided that includes a first lens having a first surface and a second surface, a second lens having a third surface and a fourth surface, an optical fiber configured to output light including a plurality of ray bundles, and a photodetector located at the fourth surface of the second lens. The first lens is configured to cause the light output from the optical fiber to form an image at an image plane located at the third surface of the second lens. The second lens is configured to cause subsets of the ray bundles received at the third surface of the second lens to intersect or overlap at the photodetector in a smaller cross-sectional area than at the third surface of the second lens.

Abstract: In a general aspect, a device is disclosed for providing a reference frequency of light. The device includes a housing having a first opening and a second opening. A first optical window covers the first opening and is coupled to the housing by a first ceramic bond that forms a hermetic seal around the first opening. A second optical window covers the second opening and is coupled to the housing by a second ceramic bond that forms a hermetic seal around the second opening. The device also includes an etalon disposed within an evacuated volume enclosed by at least the housing, the first optical window, and the second optical window. The device additionally includes one or more supports suspending the etalon in the evacuated volume. The one or more supports are formed of a material having a thermal conductivity no greater than 5 W/m·K at room temperature.

Abstract: A device of collimation of a light beam including a monomode waveguide, a first element of collimation of the light beam parallel to a first plane and a second element of collimation of the light beam parallel to a second plane, the first collimation element coupling the waveguide to the second collimation element.

Abstract: Embodiments herein describe reverse biasing one or more PIN junctions formed in at least one layer of a PSR. The resulting electric fields in the PIN junctions overlap with the optical path of the optical signal and sweep away photo-generated hole-electron free carriers away. That is, the electric fields in the PIN junctions remove the free carriers from the path of the optical signal and reduces the population of the free carriers, thereby mitigating the negative impact of free-carrier absorption (FCA).