Abstract: Provided is an optical modulator including an optical waveguide and an optical modulation part integrated on the optical waveguide that is clad in oxide silicon and has silicon as core by using a bulk silicon wafer in place of an silicon-on-insulator (SOI) used for a typical optical waveguide and optical modulator and using complementary metal oxide semiconductor (CMOS) and thermal oxide film formation processes, and a fabrication method thereof.

Abstract: An objective of the disclosure is to improve workability in extracting optical fibers in an optical fiber unit in which a bundle of optical fibers is bundled by bundling members, and to suppress/prevent an increase in transmission loss even when tension is applied to the bundling members. This optical fiber unit includes: a plurality of optical fibers; and at least three bundling members that bundle the optical fibers into a bundle. A first bundling member, among the plurality of bundling members, is arranged along a length direction of the bundle of optical fibers so as to be wound on an outer circumference of the bundle of optical fibers. The first bundling member is joined with a second bundling member at a contact point where the first bundling member contacts the second bundling member, and is joined with a third bundling member, which is different from the second bundling member, at a contact point where the first bundling member contacts the third bundling member.

Abstract: An optical coupling module includes a silicon photonic substrate, and an optical waveguide module. The silicon photonic substrate has a first surface and a first grating on the first surface for diffracting the light which passes through the grating. The optical waveguide module is disposed on the silicon photonic substrate, wherein the optical waveguide module includes an optical waveguide having an end disposed in corresponding to the first grating of the silicon photonic substrate. Otherwise, the optical waveguide module has a reflective surface coupled to the end of the optical waveguide and adapted to reflect the light emerging from or incident into the grating to form an optical path between the silicon photonic substrate and the optical waveguide for transmitting the light.

Abstract: A resonant photonic device is provided. The device comprises an optical waveguiding element, such as an optical resonator, that includes a diode junction region, two signal terminals configured to apply a bias voltage across the junction region, and a heater laterally separated from the optical waveguiding element. A semiconductor electrical barrier element is juxtaposed to the heater. A metallic strip is electrically and thermally connected at one end to a signal terminal of the optical waveguiding element and thermally connected at another end to the barrier element.

Abstract: A tool-less grouping apparatus has a main body with a top portion and a bottom portion. Dividing members extending between the top and bottom portions make openings for fiber optic connectors. Forward facing surfaces may be on both the top and bottom portions to engage the fiber optic connectors. The portions also have cut-outs that can engage the fiber optic connectors to assist in removing the fiber optic connectors from adapters.

Abstract: A system includes a chassis and a slot in the chassis. The slot has a depth dimension along which a removable module may be moved to insert the module in the slot and remove the module from the slot. The system includes waveguides, which have couplers that are arranged at different depths of the slot to couple the waveguides to the module in response to the module being inserted into the slot.

Abstract: Embodiments described herein are directed to a cable assembly including at least a first optical fiber extending from a first end to a second end and an active optical module (AOM) attached to the first end of the first optical fiber and including a first storage device that is electrically connected to the electrical connector. The cable assembly also includes a passive optical connector terminating the second end of the first optical fiber and including a second storage device. The first storage device includes an AOM identifier stored therein identifying the active optical module and the second storage device includes first information stored therein indicating that the first end of the first optical fiber is associated with the AOM identifier.

Abstract: Embodiments include a high bandwidth optical connection system suitable for interconnecting servers, for example within a rack of a datacenter. An edge mount optical connector assembly includes an edge-mount housing providing topside socket contacts proximate to a first end of the housing and a port at a second end to receive an optical plug connector. A socket latch cantilevered from an anchor point on the housing includes a latching face to contact a keeper face disposed on the housing and a spring load application surface between the anchor point and the latching face to apply a spring force against the electrical contacts for retention of a removable optical transceiver module. An optical plug connector includes a front housing joined to a rear housing with a plug lens spring loaded within the housing and with alignment features comprising two flat alignment surfaces orthogonally oriented relative to each other.

Abstract: The subject matter of this specification can be embodied in, among other things, a system for removably attaching an optical fiber sensor loop onto a tubular member, which includes an optical fiber sensor loop having a continuous optical fiber positioned arranged in a plurality of loops, each of said loops having a first end turn and a second end turn, a first and a second turn guide each including a plurality of turn grooves increasing outwardly in increasing radii, each of said turn grooves configured to receive an end turn portion of the optical fiber, a first and a second supporting wedge each having a planar first surface configured to receive a turn guide and a curved second surface configured to be received on the tubular member, and a connector configured to couple the first mounting wedge to the second mounting wedge.

Abstract: An optical interface device for optically connecting photonic devices to optical device along with methods of making. The method includes providing a glass support member that is either monolithic or laminated. A laser beam is used to write cores in the body of the support member. The support member includes a bend section and the cores generally follow the bend section and serve to define curved optical waveguides. The cores provide strong out-of-plane optical confinement, thereby allowing for strong bends and therefore a compact design for the optical interface device.

Abstract: A semiconductor waveguide optical device and a method of manufacturing of a semiconductor optical device are disclosed. The semiconductor waveguide optical device may include a gradient index waveguide for mode conversion and/or vertical translation of optical modes of step-index waveguides, which may be disposed on or over a same substrate as the gradient index waveguide. The gradient index waveguide may be epitaxially grown.

Abstract: Drop cable assemblies suitable for an optical fiber distribution system are disclosed. For some embodiments, the drop cable assembly splits an input optical fiber to a plurality of optical fibers and provides optical connection to designated premises. For other embodiments, the drop cable assembly receives multi-fiber optical connection and provides the optical connections to designated premises.

Abstract: Solar-redshift systems comprise an integral array of redshift modules, each having at least a focusing device, a target, and a quantum-dot vessel. The quantum-dot vessel contains quantum dots that emit light having an emission wavelength. The focusing device directs incident solar radiation through a focusing gap and toward the quantum-dot vessel, or into a slab waveguide and then toward the quantum-dot vessel, causing the quantum dots to emit redshifted light having the emission wavelength. The redshifted light is directed to the target, examples of which include a photovoltaic material or a living photosynthetic organism. The target has increased sensitivity or response to photons having the wavelength of the redshifted light. A trapping reflector component of the quantum-dot vessel prevents loss of redshifted light to the environment outside the solar-redshift system and allows undesirable infrared light to be removed from the system.

Abstract: This document discusses, among other things, a connector for an optical imaging probe that includes one or more optical fibers communicating light along the catheter. The device may use multiple sections for simpler manufacturing and ease of assembly during a medical procedure. Light energy to and from a distal minimally-invasive portion of the probe is coupled by the connector to external diagnostic or analytical instrumentation through an external instrumentation lead. Certain examples provide a self-aligning two-section optical catheter with beveled ends, which is formed by separating an optical cable assembly. Techniques for improving light coupling include using a lens between instrumentation lead and probe portions. Techniques for improving the mechanical alignment of a multi-optical fiber catheter include using a stop or a guide.

Abstract: A micro-duct cable includes a center member and a plurality of buffer tubes surrounding the center member. A plurality of fibers are disposed in each of the plurality of buffer tubes. Each of the plurality of buffer tubes contains greater than or equal to 24 fibers. The micro-duct cable further includes a cable jacket surrounding the plurality of buffer tubes and the center member. A maximum outer diameter of the cable is less than 13 millimeters and a modulus of elasticity of the cable is greater than or equal to 800 kpsi.

Abstract: An image display device with an image display element; an optical system; an optical waveguide having a light incident port at a first portion of the optical waveguide and a light outgoing port at a second portion of the optical waveguide, the optical waveguide configured to (a) receive light from the image display element via the optical system and (b) output the light via the light outgoing port; a light shielding element; a first element that deflects light received through the first portion of the optical waveguide; and a second element that deflects light conveyed in the optical waveguide to output the light through the second portion of the optical waveguide, wherein, the first portion and the second portion are at different positions along the optical waveguide, and the first element is between the light incident port of the optical waveguide and the light shielding element.

Abstract: An optical module includes: a first substrate configured to include an optical waveguide, and a first concave section provided over an end surface side of the optical waveguide; a resin configured to be disposed in the first concave section; an optical component configured to be disposed over the resin; and a second substrate configured to be jointed onto the first substrate, and to include a second concave section corresponding to the end surface in a surface facing the first concave section, the optical component being disposed between the resin and the second concave section.

Abstract: Multimode beam combiners include at least one gradient-step index optical fiber in which a refractive index difference at a core/cladding interface is selected to provide a numerical aperture so as to provide stable, uniform beam output. One or more such fibers is formed into a tapered bundle than can be shaped to provide a selected illuminated aperture. The fibers in the bundle can be separated by respective tapered claddings so as to be optically coupled or uncoupled. Illumination systems can include a plurality of such fibers coupled to a plurality of laser diodes or other light sources.

Abstract: Gradient index (GRIN) lens chips and associated small form factor optical arrays for optical connections, and related fiber optic connectors are disclosed. By aligning GRIN lenses within a GRIN lens chip, a more precise and reliable alignment may be achieved with respect to optical fibers than if a single conventional ferrule is utilized to align and secure both GRIN lenses and optical fibers. The GRIN lens chip may include a GRIN lens received and thereby aligned within a groove disposed between a fiber end and a terminal end of a GRIN lens holder body. The optical fibers may also be received and thereby aligned within a groove of a ferrule body. In this manner, when the GRIN lens chip containing the GRIN lenses is aligned with a ferrule body containing the optical fibers, then the GRIN lenses may be precisely located relative to the optical fibers.

Abstract: An optical wiring substrate includes an insulation layer including a resin, a first conductor layer formed on the insulation layer and including a metal, the first conductor layer including an inclined surface that is inclined relative to an optical axis of an optical fiber. The insulation layer further includes an end surface that faces a cladding of the optical fiber. The inclined surface of the first conductor layer is formed at a position that faces a core of the optical fiber.