Abstract: Optoelectronic systems with an adapter and methods of manufacturing or assembling the same are provided. An example of an optoelectronic system according to the present disclosure includes a substrate, an interposer, an electronic component disposed on the interposer, and an optical component. The optoelectronic system includes a ferrule and an optical fiber coupled to the ferrule. The optoelectronic system also includes an optical socket configured to receive the ferrule therein. The optoelectronic system further includes an adapter positioned between the interposer and the optical socket. The adapter has a wedge-shaped configuration such that the ferrule is disposed at a non-zero angle relative to the interposer when the ferrule is received in the optical socket and the optical socket is coupled to the adapter.

Abstract: An optical device includes a spatial light modulator and an optical waveguide with a plurality of extraction features. The plurality of extraction features is positioned relative to the optical waveguide so that a respective extraction feature receives light, having propagated within the optical waveguide, in a first direction and directs a first portion of the light in a second direction distinct from the first direction to exit the optical waveguide and illuminate at least a portion of the spatial light modulator. The plurality of extraction features is also positioned relative to the optical waveguide so that a respective extraction feature directs a second portion, distinct from the first portion, of the light to undergo total internal reflection, thereby continuing to propagate within the optical waveguide.

Abstract: Methods and techniques are presented to inhibit crystallization in optical waveguide structures, during high temperature annealing or deposition, thus preventing the formation of crystalline grains that scatter and/or absorb light. Dopant atoms or molecules are used to disrupt crystallization. The dopant atoms or molecules are selected to be transparent to the optical signal's wavelength range(s). Optical signals propagating in a waveguide that is fabricated with such techniques will experience reduced propagation loss or insertion loss. The passive dopants can also be used in active devices such as lasers or optical amplifiers that incorporate optically active dopants, as long as the passive dopants are chosen so that they do not interact with the active dopants.

Abstract: A waveguide display element includes waveguide layers stacked on top of each other and an in-coupler associated with each waveguide layer for coupling light within a predefined wavelength band into the waveguide layer. Each of the in-couplers includes an intermediate layer arranged on the waveguide layer, the intermediate layer having intermediate layer properties. Each of the in-couplers further includes an in-coupling grating arranged on the intermediate layer, the grating having grating properties. The combination of the intermediate layer properties and grating properties of each in-coupler is different with respect to other in-couplers.

Abstract: An optical device includes a light guide plate configured to guide light entering therein, and cause said light to exit from an emission surface thereof and thereby form an image in a space; a group of narrow-view optical-path deflectors configured to form an image in a space within a narrow view direction taken as greater than or equal to 0° and less than a first angle relative to a reference plane that is orthogonal to the emission surface and parallel to a side surface of the light guide plate; and a group of wide-view optical-path deflectors configured to form an image in a space within a wide view direction taken as greater than or equal to the first angle and less than 90° relative to the reference plane. The group of narrow-view optical-path deflectors and the group of wide-view optical-path deflectors have different image forming conditions.

Abstract: A light diffusing optical fiber includes a glass core, a cladding, a phosphor layer surrounding the cladding, and a plurality of scattering structures positioned within the glass core, the cladding, or both. The phosphor layer includes two or more phosphors and is configured to convert guided light diffusing through the phosphor layer into emission light such that the color of the emission light has a chromaticity within a u?-v? chromaticity region on a CIE 1976 chromaticity space defined by: a first u?-v? boundary line and a second u?-v? boundary line that extend parallel to a planckian locus at a distance of ±0.02 Duv from the planckian locus, a third u?-v? boundary line that extends along an isothermal line for a correlated color temperature of about 2000 K, and a fourth u?-v? boundary line that extends along an isothermal line for a correlated color temperature of about 10000 K.

Abstract: A fiber alignment device is provided that includes a curable refractive index-matching gel that exhibits self-cleaning and self-healing characteristics upon multiple cycles of insertion and removal of an optical fiber.

Abstract: A process is provided for the high-yield heterogeneous integration of ‘quantum micro-chiplets’ (QMCs, diamond waveguide arrays containing highly coherent color centers) with an aluminum nitride (AlN) photonic integrated circuit (PIC). As an example, the process is useful for the development of a 72-channel defect-free array of germanium-vacancy (GeV) and silicon-vacancy (SiV) color centers in a PIC. Photoluminescence spectroscopy reveals long-term stable and narrow average optical linewidths of 54 MHz (146 MHz) for GeV (SiV) emitters, close to the lifetime-limited linewidth of 32 MHz (93 MHz). Additionally, inhomogeneities in the individual qubits can be compensated in situ with integrated tuning of the optical frequencies over 100 GHz. The ability to assemble large numbers of nearly indistinguishable artificial atoms into phase-stable PICs is useful for development of multiplexed quantum repeaters and general-purpose quantum computers.

Abstract: [Problem] To propose a head-mounted display capable of restraining deformation or breakage of a connection member caused by concentration of an external force on the connection member. [Solution] A head-mounted display includes a frame worn on the head of a viewer and having a front part disposed in front of the viewer, and an image display device connected to a central part of the front part. The image display device includes two right and left optical modules each including an image generation device and a light guide member that is connected to the image generation device and is disposed closer as a whole to a center of the face of the viewer than the image generation device, and includes a connection member connecting the image display device to the front part. A part of the image display device is disposed so as to face a part of the front part in a front-rear direction with a predetermined gap interposed therebetween.

Abstract: A method of operating a multi-axis fiber scanner having a base including a base plane includes providing a source of electromagnetic radiation, directing the electromagnetic radiation through a fiber link that passes through the base plane of the base along a longitudinal axis orthogonal to the base plane, and supporting a retention collar positioned a distance from the base plane. The method also includes actuating a first piezoelectric actuator among a plurality of piezoelectric actuators to decrease the distance between a first side of the base and the retention collar, actuating a second piezoelectric actuator among the plurality of piezoelectric actuators to increase the distance between a second side of the base and the retention collar, and scanning the fiber link in a scanning plane.

Abstract: A chip-scale transceiver includes an interposer having microspring electrical contacts disposed on the interposer substrate. At least one electronic chip and at least one optoelectronic chip are electrically coupled to the interposer through the microsprings. The electronic chip includes at least one of an amplifier array and a laser driver array. First electrical contact pads arranged to make electrical contact with the first microsprings of the interposer. The optoelectronic chip includes at least one of a laser array and a photodetector array. Second electrical contact pads arranged to make electrical contact with the second microsprings of the interposer are disposed on the optoelectronic chip substrate. The transceiver has an area less than or equal to 0.17 mm2 per Gbps.

Abstract: A photonic integrated circuit may include a substrate and an optical waveguide integrated with the substrate. The optical waveguide may include a bend section, wherein a bend shape of the bend section is defined by a curvature function to suppress waveguide mode conversion.

Abstract: A wave conductor for electromagnetic waves, waveguide connector and communications link A wave conductor for electromagnetic waves, preferably a millimeter-wave wave conductor, in particular for a digital communication application, with a conductor core and a one conductor sheathing. The conductor sheathing surrounds the conductor core at least partially in the longitudinal direction and at least partially in the circumferential direction of the wave conductor. One longitudinal section of the wave conductor has cross-sections which deviate from a circle at the outside of the wave conductor and/or at the outside of the conductor sheathing. Further, a waveguide connector for electromagnetic waves, preferably millimeter-wave waveguide connectors, in particular flying or installable waveguide connectors for a wave conductor. The waveguide connector has a wave conductor plug-in recess in which a longitudinal section of the wave conductor is directly placeable.

Abstract: (Problem) To provide an optical ferrule that can easily accommodate multicore optical fibers, without an accompanying increase in the number of components. (Resolution Means) The optical ferrule 1 includes a guide opening 14 formed by an upper wall 10, a bottom wall 11, and a pair of side walls 12 and 13; a guide part 15 that extends forward from the upper wall 10 and the guide opening 14; and an optical coupler 20 provided on the upper surface of the upper wall 10. The optical coupler 20 has a waveguide aligning part 21 that aligns and holds an optical waveguide 2, and a light direction converter 22 that changes the direction of light from the optical waveguide 2 and emits the light toward an opposing optical ferrule 1.

Abstract: A fiber optical adapter includes a base body and a base element. The base body includes a receiving groove. Two ends of the base body form insertion openings respectively communicating with the receiving groove. The base element is in the receiving groove. The base element includes a first connection member, a second connection member combined with the first connection member, and socket members. Each socket member is received in the corresponding first sleeve member of the first connection member and the corresponding second sleeve member of the second connection member.

Abstract: A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Abstract: A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Abstract: Aspects for a wearable augmented reality (AR) device are described herein. The aspects may include a light engine that includes a micro-display configured to emit light to form an image, a polarized beam splitter positioned horizontally adjacent to the micro-display and configured to receive the emitted light that passes through the polarized beam splitter, and one or more first imaging lenses positioned horizontally adjacent to the polarized beam splitter and configured to receive the diverged light. One of the first imaging lenses may include a reflection surface configured to reflect and converge the light. The polarized beam splitter may include a reflective coating configured to reflect the converged light. The aspects may further include an optical waveguide configured to guide the converged light to a predetermined position.

Abstract: A multi-positionable tray assembly (20) for mounting within a chassis (10) of a telecommunications panel (100) is disclosed. The multi-positionable tray assembly (20) may include support arm (24) that pivotally supports a tray (22) and that allows the tray assembly (20) to be installed and removed from the chassis (10). The tray (22) and the support arm (24) cooperatively define a cable routing pathway (208) that extends through a pivot axis (A1) defined by the tray and the support arm. To minimize the required depth of the tray (10) and optimize cable routing, the tray (20) can include a cable management structure (102) with a patch panel (104) having a plurality of adapters (108) arranged along a transverse axis (A2), wherein the transverse axis is non-parallel or oblique to a front plane (A4) of the tray.

Abstract: A pupil expansion apparatus includes: a beam splitter, configured to receive light from an optic and to replicate a pupil formed by the optic; and a waveguide, optically coupled to the beam splitter, the waveguide configured to receive light from the beam splitter and further expand the pupil.