Abstract: An optoelectronic device includes a substrate and at least three emitters, which are disposed on the substrate and are configured to emit respective beams of light. A plurality of waveguides are disposed on the substrate and have respective input ends coupled to receive the beams of light from respective ones of the emitters, and curve adiabatically from the input ends to respective output ends of the waveguides, which are arranged on the substrate in an array having a predefined pitch. Control circuitry is configured to apply a temporal modulation independently to each of the beams of light.

Abstract: A flexible push-pull boot extends between a front end and a rear end, a rear portion has a spine and a plurality of ribs extending from the rear end toward the front end. There is also a middle portion from which a plurality of front extensions extend. At least one of the front extensions has an inwardly extending projection on an inside portion of the front extensions to retain a housing therebehind.

Abstract: A fiber mode sorter includes an optical fiber including a waveguide structure configured to maintain an orbital angular momentum (OAM) of a beam propagating through the optical fiber, and an OAM mode sorter placed on a core of the optical fiber.

Abstract: Devices and methods for connecting optical fibers are provided. In some embodiments, connectors and adaptors for two-fiber mechanical transfer type ferrules are disclosed. In some embodiments, MT connectors, such as simplex, duplex, and quad micro-MT adaptors are disclosed. In some embodiments, MT adaptors, such as simplex, duplex, and quad adaptors are disclosed. In some embodiments, optical fiber cables that modularly coupled with at least one optical fiber connector, adaptor, and other optical fiber cable the cable is configured to provide a remote release from an adaptor receptacle.

Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.

Abstract: An optical-fiber ribbon includes intermittent gaps along its longitudinal length in which no bonding material is present across the width of the optical-fiber ribbon. These intermittent gaps without bonding material (e.g., adhesive beads) help to reduce or eliminate bonding-material interference as the optical-fiber ribbon is positioned within an alignment chuck during preparations for mass-fusion splicing.

Abstract: A waveguide display system may include an eyepiece waveguide that can have a first surface and a second surface, the waveguide including an incoupling diffractive optical element (DOE) and an outcoupling DOE. The waveguide display system may include a light source and a scanning mirror, and may include reflective and collimating optical elements. The incoupling DOE can be configured to selectively propagate incident light beams to the outcoupling DOE in the waveguide through total internal reflection (TIR).

Abstract: An optical fiber includes a glass portion, a primary coating layer, and a secondary coating layer. In the optical fiber, a value of microbend loss characteristic factor F?BL_GO is 2.6 ([GPa?1·?m?10.5·dB/turn]·10?27) or less, when represented by F?BL_GO=F?BL_G×F?BL_O by using geometry microbend loss characteristic F?BL_G and optical microbend loss characteristic F?BL_O.

Abstract: A fiber optic element of a fiber scanning system includes a motion actuator having longitudinal side members, an internal orifice, a first support region, a central region, and a second support region. The fiber optic element also includes a first fiber optic cable passing through the internal orifice and having a first fiber joint as well as a second fiber optic cable passing through the internal orifice. The second fiber optic cable has a second fiber joint disposed in the central region and spliced to the first fiber joint, a second coupling region, a light delivery region, and a light emission tip. The light delivery region is characterized by a first diameter and the light emission tip is characterized by a second diameter less than the first diameter.

Abstract: An optical fiber unit includes an optical fiber ribbon in which a plurality of optical fibers are arranged in parallel, and a colored bundle tape which is longitudinally wrapped or spirally wrapped around an optical fiber ribbon bundle in which the plurality of optical fiber ribbons are stranded together. One end portion in a width direction of the bundle tape and the other end portion in the width direction of the bundle tape overlap each other and are joined to each other, and the bundle tape covers an entire circumference of the optical fiber ribbon bundle.

Abstract: A silicon interposer. The silicon interposer including: a silicon layer, including one or more optical waveguides each connectable to an optical fiber; an optically active component, configured to convert optical signals received from the optical fiber into electrical signals or to convert electrical signals into optical signals and provide them to the optical fiber; and one or more electrical interconnects, connected to the optically active component and connectable to a printed circuit board, a separate die, a separate substrate, or a wafer level package.

Abstract: A sensing textile includes at least one assembly of optical fiber filaments, wherein the sensing textile has a main direction and a cross direction, and wherein the at least one assembly of optical fiber filaments is oriented at any angle measured relative to the cross direction.

Abstract: An optical subassembly includes a planar dielectric waveguide structure that is deposited at temperatures below 400 C. The waveguide provides low film stress and low optical signal loss. Optical and electrical devices mounted onto the subassembly are aligned to planar optical waveguides using alignment marks and stops. Optical signals are delivered to the submount assembly via optical fibers. The dielectric stack structure used to fabricate the waveguide provides cavity walls that produce a cavity, within which optical, optoelectronic, and electronic devices can be mounted. The dielectric stack is deposited on an interconnect layer on a substrate, and the intermetal dielectric can contain thermally conductive dielectric layers to provide pathways for heat dissipation from heat generating optoelectronic devices such as lasers.

Abstract: Provided is an intermittently coupled-type optical fiber ribbon in which, in a state where a plurality of optical fibers are arranged in parallel, coupling portions at which adjacent optical fibers are coupled by a coupling resin and non-coupling portions at which the adjacent optical fibers are not coupled are intermittently provided in a longitudinal direction, the coupling portions and the on-coupling portions being provided between some or all of the plurality of optical fibers, in which at least some of the non-coupling portions include a convex portion of the coupling resin, a tip end of the convex portion having an acute angle in a cross-sectional view in a direction orthogonal to the longitudinal direction.

Abstract: Integrated optical devices and methods of forming the same are disclosed. A method of forming an integrated optical device includes the following steps. A substrate is provided. The substrate includes, from bottom to top, a first semiconductor layer, an insulating layer and a second semiconductor layer. The second semiconductor layer is patterned to form a waveguide pattern. A surface smoothing treatment is performed to the waveguide pattern until a surface roughness Rz of the waveguide pattern is equal to or less than a desired value. A cladding layer is formed over the waveguide pattern.

Abstract: A female hardened fiber optic connector for terminating an end of a fiber optic cable that is suitable for making an optical connection with another hardened cable assembly and cable assemblies using the same are disclosed. The female hardened fiber optic connector includes a connector assembly, a crimp body, a connector sleeve, and female coupling housing. The connector sleeve has one or more orientation features that cooperate with one or more orientation features inside the female coupling housing. The crimp body has a first shell and a second shell for securing the connector assembly at a front end of the shells and a cable attachment region rearward of the front end for securing a cable.

Abstract: In an example embodiment, a system includes a first grating-coupled laser (GCL) that includes a first laser cavity optically coupled to a first transmit grating coupler configured to redirect horizontally-propagating first light, received from the first laser cavity, vertically downward and out of the first GCL. The system also includes a second GCL that includes a second laser cavity optically coupled to a second transmit grating coupler configured to transmit second light vertically downward and out of the second GCL. The system also includes a photonic integrated circuit (PIC) that includes a first receive grating coupler optically coupled to a first waveguide and configured to receive the first light and couple the first light into the first waveguide. The PIC also includes a second receive grating coupler optically coupled to a second waveguide and configured to receive the second light and couple the second light into the second waveguide.

Abstract: An optical waveguide element and control method thereof, a backlight module and a display device. The optical waveguide element includes a cavity, a light incident surface and a light emergent surface, light entering the cavity from the light incident surface is configured to propagate and be totally reflected in the cavity; and a reflector array, located in the cavity and configured to be controllable to cause at least a part of the light incident on the reflector array to be reflected out of the light emergent surface or to continue being totally reflected at the light emergent surface.

Abstract: Electro-optical devices and methods for constructing electro-optical devices such as a switch or phase shifter. An electrode layer is deposited on a substrate layer, a waveguide structure is deposited on the electrode layer, a first cladding layer is deposited on the waveguide structure, and the first cladding layer is planarized and bonded to a wafer. The substrate layer is removed and the electrode layer is etched to split the electrode layer into a first electrode separated from a second electrode. A second cladding layer is deposited on the etched electrode layer. The first and second electrodes may be composed of a material with a large dielectric constant, or they may be composed of a material with a large electron mobility. The device may exhibit a sandwich waveguide architecture where an electro-optic layer is disposed between two strip waveguides.

Abstract: An optical fiber cable includes a plurality of intermittently connected optical fiber ribbons inside a cable sheath, in which a fibrous filler or an FRP using the fibrous filler is provided on at least one pair of diagonals of the two diagonal directions approximately orthogonal to each other inside the cable sheath. An average linear expansion coefficient of the fibrous filler at ?40° C. to +70° C. is smaller than an average linear expansion coefficient of the cable sheath at ?40° C. to +70° C.