Abstract: A cable management and mounting system including: a base portion; a support portion configured to slidingly attach to the base portion; and a lateral portion configured to slidingly attach to the base portion. The support portion may include an adapter receiving portion. A space between the base portion and the support portion may be configured to receive a communication device. The support portion and the lateral portion may be configured to receive different sized communication devices, different sized adapter units, and cable in an arrangement that may be configured to accommodate the different sized communication devices, the different sized adapter units, and the cable using adapter mounting portions and cable management structures that may be configured to engage with the support portion to avoid a need for additional mounting structures.

Abstract: The present disclosure reduces the possibility that a protrusion and a conductor layer will be damaged during the bonding of a lid to an optical waveguide module. An optical waveguide module includes a substrate, a core, a cladding layer, and a conductor layer. The substrate has a first surface. The core extends in a first direction. The cladding layer is disposed on the first surface 1a and extends over and around the core. The conductor layer is disposed on the cladding layer. The cladding layer includes a protrusion, which extends over the core. The protrusion has a second surface, which is covered with the conductor layer. The protrusion includes a portion where the second surface extends along the first surface and is wider than the core.

Abstract: This application relates to a backlight module, including a middle frame, a back plate, a light guide plate and an optical film. The back plate includes a base plate and a side plate, and in a light-exiting direction of the light guide plate, a distance between a top surface of the side plate and the base plate is less than or equal to a distance between a light-exiting surface of the light guide plate and the base plate. The middle frame includes a top wall and side wall, the top wall covers a portion of the optical film, the side wall is arranged at one side of the side plate away from the light guide plate, and the side wall has a first snap-fastener projecting in a direction close to the light guide plate and connected to the side plate. A display module and display device are further provided.

Abstract: An optical fiber may include a cladding structure extending along a fiber length providing a hollow interior fiber region, and anti-resonant (AR) elements formed as walled structures with walls extending along the fiber length. At least one of the AR elements surrounds an interior region and further includes one or more support structures in the interior region and formed as at least a portion of at least one of the walls, where the one or more support structures have a non-uniform thickness profile, and where the plurality AR elements is configured to guide light along the fiber length in a central portion of the hollow interior fiber region based on optical anti-resonance.

Abstract: According to one embodiment, there is provided an optical receiver including: a beam reducer including an incident lens condensing first collimated light having a first diameter to a focal point, an emitting lens receiving light emitted from the incident lens and emitting second collimated light having a second diameter smaller than the first diameter, and a main body provided between the incident lens and the emitting lens, the main body having the focal point inside; and a light receiving element including a light receiving lens condensing the second collimated light and a light receiving portion receiving the light condensed by the light receiving lens.

Abstract: An optical system includes a display, at least one lens, and at least one of a partial reflector and a reflective polarizer. The optical system forms a virtual image of an image emitted by the display for viewing by an eye. The emitted image includes a plurality of cones of image light. Each cone of image light propagates from a different corresponding location on the emitted image and includes a central light ray propagating along a central axis, such that in each of orthogonal first and second planes that include the central axis, an intensity distribution of the cone of image light as a function of angle relative to the central axis includes a substantially flat peak having a full width of at least 15 degrees across which the peak changes by less than about 20%, and a corresponding fullwidth at half maximum that is less than about 60 degrees.

Abstract: An optical fiber filter has an ultra-wide tuning range and includes a two-dimensional mechanical rotating mirror, a collimating and beam expanding system, and two gratings. An input fiber emits a multi-wavelength optical signal into the rotating mirror, which reflects the signal to the system to form collimated beams. In turn, the collimated beams are incident on the gratings that disperse the light of different wavelengths to different angles. Lights of different diffraction angles are input into an output fiber by adjusting the rotating mirror. The rotating mirror can be used to switch between gratings of different wavebands to tune optical wavelengths in an ultra-wide range.

Abstract: The disclosure provides a diffraction optical waveguide, a design method thereof and a near-eye display device. The diffraction optical waveguide includes: a waveguide substrate; a coupling-in grating configured to couple image light into the waveguide substrate through diffraction; and a coupling-out grating configured to couple at least a part of diffracted light propagating thereinto out of the waveguide substrate through diffraction, wherein the waveguide substrate includes M layers of waveguide media, a catadioptric interface is formed between adjacent waveguide media, the diffracted light passes through the M layers of waveguide media in sequence and is split by the catadioptric interface, beams after light splitting propagate towards a coupling-out zone along different transmission paths in the M layers of waveguide media, each layer of waveguide medium has a different refractive index, a refractive index of an ith layer of waveguide medium being ni, an air refractive index being n0, and |ni?ni?1|?0.

Abstract: Structures for a waveguide escalator, as well as methods of forming such structures. The structure comprises a first waveguide core on a substrate, a second waveguide core, and a back-end-of-line stack including a third waveguide core disposed between the first waveguide core and the second waveguide core. The third waveguide core comprises a layer stack that includes a first layer, a second layer, and a third layer between the first layer and the second layer. The first layer and the second layer comprise a first dielectric material with a first refractive index, and the third layer comprises a second dielectric material with a second refractive index that is less than the first refractive index.

Abstract: A method and apparatus for inscribing a high-temperature stable Bragg grating in an optical waveguide, comprising the steps of: providing the optical waveguide; providing electromagnetic radiation from an ultrashort pulse duration laser, wherein the wavelength of the electromagnetic radiation has a characteristic wavelength in the wavelength range from 150 nanometers (nm) to 2.

Abstract: Aspects of the present disclosure generally relate to two-dimensional electronic apparatuses and methods of use. A two-dimensional electronic sum frequency generation (2D-ESFG) apparatus includes an amplifier including a laser source. A broadband optical parametric amplifier (BOPA) is optically coupled to the amplifier. The BOPA includes a two-stage amplifier. An etalon is optically coupled to the amplifier. The etalon includes two or more partially reflective substrate optical flats. A noncollinear optical parametric amplifier (NOPA) is optically coupled to the amplifier. A dispersive filter pulse shaper is optically coupled to the NOPA. A synchronizer including a galvanometer mirror is optically coupled to the BOPA, the etalon, and the dispersive filter pulse shaper. A detector is optically coupled to the synchronizer.

Abstract: A pulsed laser source device configured to a plurality of Fabry Perot resonant cavities. The pulsed laser source device uses a single laser beam to provide a frequency, a wavelength, and a phase, each of which is matched with a plurality of laser beams configured, respectively, with the plurality of Fabry Perot resonant cavities to generate a high intensity beam for laser fusion.

Abstract: An article of manufacture comprises: at least a portion of a wafer comprising a substrate and one or more layers fabricated on the substrate; one or more integrated photonic structures in the portion of the wafer, where at least a first integrated photonic structure of the one or more integrated photonic structures is associated with an electromagnetic wave propagation region that extends beyond a first surface of a first layer of the one or more layers; an array of liquid guiding structures arranged in a two-dimensional pattern on a portion of the first surface of the first layer; and an adhesive material making contact with the first surface of the first layer and with at least a majority of the liquid guiding structures in the array of liquid guiding structures.

Abstract: Provided is a light guide including: a base that has a first reflecting surface and a second reflecting surface and that propagates incident video light; and a plurality of half mirrors, each of which has a first surface and a second surface and is configured to include a dielectric multi-layer film, in which the plurality of half mirrors are disposed in the base such that the half mirrors are spaced from each other, the base and the plurality of half mirrors are configured such that the video light made incident into the base is incident on each of the first surface and the second surface of at least one of the plurality of half mirrors one or more times, and refractive indices of two outermost layers of the dielectric multi-layer film are 0.90n to 1.15n in a case in which a refractive index of the base is n.

Abstract: A reflection sheet included in a display module is arranged between a back plate and a light guide plate, a plurality of light-emitting assemblies are arranged at a circumferential edge of the light guide plate; the light-emitting assembly includes a light-emitting member, a substrate and an optical adhesive layer, the light-emitting member is fixed on the substrate; the substrate is bonded to a first surface of the light guide plate via the optical adhesive layer; the light-emitting member is located at a circumferential edge of the light guide plate; a light-emitting surface of the light-emitting member is in contact with an edge of the light guide plate, the first surface is a surface opposite to a surface of the light guide plate for emitting light; and an end of the substrate is overlapped on a surface of an edge of the reflection sheet close to the light guide plate.

Abstract: An optical device includes a first light-transmitting substrate having at least two parallel major surfaces, a light wave input aperture, a light wave output aperture positioned next to one of the major surfaces of the substrate, a light wave output pupil, a light wave input element for coupling light waves, having a field-of view and a central light wave, into the substrate to effect total internal reflection from the major surfaces of the substrate, and at least one reflecting surface, having an active area, and being located between the two major surfaces of the light-transmitting substrate, for coupling light waves out of the substrate, wherein light waves trapped inside the substrate are reflected at least twice by the active area of the reflecting surface before being coupled out from the substrate, are substantially reflected from one of the major surfaces between the first and the second reflectance from the reflecting surface, are then reflected from the reflecting surface and pass through the output

Abstract: A current-assisted photonic demodulator, including a detection portion produced based on germanium, containing at least two doped modulation regions and at least one doped collection region, surrounded by a peripheral lateral portion generating in the detection portion horizontal tensile and vertical compressive mechanical stress. The doped collection region(s) are disposed according to a vertical arrangement in relation to the doped modulation regions.

Abstract: A current-assisted photonic demodulator includes a detection portion having two doped modulation regions and two doped collection regions, lying flush with a first face covered by a dielectric layer. Electrodes pass through the dielectric layer and come into contact with the doped regions. In addition, intermediate electrodes partly pass through the dielectric layer and are spaced apart from the first face by a non-zero distance, each being located, in projection in a main plane, between one of the doped modulation regions and the adjacent doped collection region.

Abstract: Disclosed herein are fiber-optic assemblies for insertion within a patient body, that include an optical fiber and a secondary mechanical layer extending around a circumference of the optical fiber along at least the distal portion of the optical fiber. A distal tip section of the optical fiber includes a portion of the optical fiber disposed within a circuitous path, or an expansion of the optical fiber. The optical fiber may be a shape sensing optical fiber. A medical device assembly includes the fiber-optic assembly coupled with a catheter, a stylet, a probe, or a guidewire. The secondary mechanical layer and/or the expansion may be formed of an electrically conductive material.

Abstract: A fabrication process for fabricating, from a bulk substrate material, devices configured to interface with light is described. Sequential directionally-dependent etching process steps may be used to form interior features of a given device prior to undercutting remaining portions of the bulk substrate material in order to locally isolate the formed device from the remaining portions of the bulk substrate material. Layers of conformally deposited material may be used to protect the interior features from being unintentionally etched during said undercutting step(s). Such devices fabricated from bulk substrate material may be used in photonics, for example, in which interior features may be patterned into a bulk substrate material rather than into a thin film in order to preserve higher-quality material properties (e.g., for diamond). Collectively, interior features of such a photonics device may be configured to act as a photonic cavity to store and/or capture light with improved performance.