Abstract: A rollable optical fiber ribbon utilizing low attenuation, bend insensitive fibers and cables incorporating such rollable ribbons are provided. The optical fibers are supported by a ribbon body, and the ribbon body is formed from a flexible material such that the optical fibers are reversibly movable from an unrolled position to a rolled position. The optical fibers have a large mode filed diameter, such as ?9 microns at 1310 nm facilitating low attenuation splicing/connectorization. The optical fibers are also highly bend insensitive, such as having a macrobend loss of ?0.5 dB/turn at 1550 nm for a mandrel diameter of 15 mm.

Abstract: An ultra-thin board-to-board photoelectric conversion device includes: a plug arranged at one end of an optical fiber; a socket on which the plug is arranged; a retaining element arranged to retain the plug in the socket; and a first circuit substrate on which the socket is mounted. The plug includes: a second circuit substrate; and a photoelectric chip, a lens for transmitting and processing light beams between the optical fiber and the photoelectric chip and a gold finger arranged on the second circuit substrate. The socket includes: a socket main body; and a hollow part for accommodating the lens and the photoelectric chip, an elastic sheet electrode extending from top of the socket main body to bottom of the socket main body and a casing arranged on the socket main body extending from an outer circumference of the socket main body to the top of the socket main body.

Abstract: The present invention provides a temperature-insensitive Mach-Zehnder interferometer, including: a first mode converter; a second mode converter, located on one side of the first mode converter and with a distance from the first mode converter; and a connecting arm, located between the first mode converter and the second mode converter, one end of the connecting arm is connected with the first mode converter, and the other end is connected with the second mode converter. The connecting arm includes a straight waveguide connecting arm. The temperature-insensitive Mach-Zehnder interferometer of the present invention can be configured to be insensitive to temperature by adjusting parameters such as the width and thickness of the connecting arm.

Abstract: A telecommunications assembly includes a chassis defining an interior region and a tray assembly disposed in the interior region. The tray assembly includes a tray and a cable spool assembly. The cable spool assembly is engaged to a base panel of the tray. The cable spool assembly is adapted to rotate relative to the tray. The cable spool assembly includes a hub, a flange engaged to the hub and an adapter module. The flange defines a termination area. The adapter module is engaged to the termination module of the flange. The adapter module is adapted to slide relative to the flange in a direction that is generally parallel to the flange between an extended position and a retracted position.

Abstract: A fiber optic connector along with a tool allows for the changing of the polarity of the fiber optic connector. Keys may be installed in both the top and the bottom of the fiber optic connector, one in a first position and the other in a second position. Using the tool in one back-and-forth motion, the polarity of the fiber optic connector can be changed. The keys have a configuration that resist an incorrect insertion and provide better retention of the keys in the correct configuration due to a better retention force.

Abstract: There is provided a head including: a piezoelectric layer; a plurality of individual electrodes located below the piezoelectric layer in an up-down direction; a common electrode located below the piezoelectric layer. The plurality of individual electrodes includes: a first individual electrode array including a plurality of first individual electrodes aligned in a first direction; and a second individual electrode array including a plurality of second individual electrodes aligned in the first direction. The common electrode includes: a plurality of first facing portions which are demarcated to correspond to the plurality of first electrodes, respectively; a plurality of second facing portions which are demarcated to correspond to the plurality of second electrodes, respectively; and a connecting portion located between the plurality of first facing portions and the plurality of second facing portions, and connecting the plurality of first facing portions and the plurality of second facing portions.

Abstract: An embodiment optical connector includes a fiber having a core through which light is guided and a magnet attached to one end of the fiber, and the magnet has an opening that exposes at least the end face of the core. An embodiment optical connection structure includes a first optical connector and a second optical connector, each including a fiber having a core through which light is guided and a magnet attached to one end of the fiber, wherein the magnets are magnetized so as to exert attraction on each other, and when the first optical connector and the second optical connector are mechanically connected by magnetic forces, the core of the first optical connector and the core of the second optical connector are optically connected through the opening of the magnet of the first optical connector and the opening of the magnet of the second optical connector.

Abstract: The present disclosure relates to a field installable connector system. The connector system includes a factory terminated subassembly including a ferrule terminating an optical fiber of an optical fiber cable. The factory terminated subassembly has a small transverse cross-section to facilitate routing through a duct. The connector system also includes a field installable subassembly including various connector components that can be installed after the factory terminated subassembly has been routed through a duct. The components can be sealed and hardened.

Abstract: An optical transceiver includes a silicon photonics substrate, transmitter circuitry, and receiver circuitry that are heterogeneously integrated. The transmitter circuitry includes a plurality of laser devices formed on the silicon photonics substrate, each of the plurality of laser devices configured to generate a respective laser light, a plurality of modulators formed on the silicon photonics substrate, each of the plurality of modulators configured to modulate the laser lights based on driver signals and output, from the silicon photonics substrate, the modulated laser lights, and a driver formed on the silicon photonics substrate and configured to generate the driver signals.

Abstract: An optical connector includes optical fibers, a ferrule, and a pitch fixing member. The optical fibers have bare parts where coating parts have been stripped off. The ferrule has insertion holes, and the bare parts are inserted into the insertion holes. The pitch fixing member is inserted into the ferrule and has fixing parts that fix a pitch of the coating parts of the optical fibers to a pitch of the insertion holes.

Abstract: In a conventional RGB coupler, the split ratio largely depends on the wavelength. The split ratio of R and the split ratios of G and B are non-uniform because R has a wavelength far from those of G and B. Accordingly, a video display device needs to have the monitoring detection value corrected, making it difficult to use the monitoring function. A light combining circuit and a light source of this disclosure include a first splitting unit for splitting R wavelength light and a second splitting unit for splitting G and B combined light. They split monochromatic light of R and combined light of G and B, independently. G and B light from an LD are first combined by a preliminary wave-combining unit before being split. The split lights of each wavelength are combined by a main wave-combining unit, outputting RGB combined light. Each split light from the two splitting units is detected by a single PD.

Abstract: An optical modulator includes a first Radio Frequency (RF) line and a second RF line; an optical waveguide along a length of the modulator with an input and an output; and a plurality of segments along the length including a first set of segments, a single RF line crossing, and a second set of segments, wherein the first set of segments and the second set of segments have an inversion of their respective orientation at the RF line crossing, and wherein the RF line crossing is located off center relative to the plurality of segments, wherein each of the first RF line and the second RF line extend along the length and cross one another at the RF line crossing.

Abstract: An optical cable includes a single optical connector configured for insertion into an optical receptacle so as to receive optical signals at a plurality of different wavelengths from the optical receptacle, and multiple electrical connectors, configured for insertion into respective electrical receptacles. The optical cable further includes a plurality of optical fibers, having respective first ends connected together to the single optical connector so as to receive the optical signals. Each of the optical fibers has a respective second end coupled to a respective one of the electrical connectors. Each electrical connector includes a keyed portion to mate with an indentation on a transceiver.

Abstract: A fiber optic ferrule has a main body with a top surface and a bottom surface and extends between a front end and a back end. The front face includes a recessed portion with a plurality of optical lenses. The front face is configured to allow for the plurality of lenses to be on an angle relative to the front face and the fiber optic ferrule will have not any undercuts and allow the fiber optic ferrule to be ejected from a mold without engaging any portions of the mold.

Abstract: The present disclosure relates to a method including arranging multiple optical fibers between a die and a lid, wherein the die is bent and comprises multiple grooves, each optical fiber in or close to a separate groove; bonding the lid to the die to hold the multiple optical fibers in place in the multiple grooves, wherein the bonding comprises applying a bonding force non-uniformly across the lid to conform the lid to the bent die. A corresponding system is also disclosed herein.

Abstract: Disclosed are semiconductor packages and manufacturing method of the semiconductor packages. In one embodiment, a semiconductor package includes a substrate, a first waveguide, a semiconductor die, and an adhesive layer. The first waveguide is disposed on the substrate. The semiconductor die is disposed on the substrate and includes a second waveguide aligned with the first waveguide. The adhesive layer is disposed between the first waveguide and the second waveguide.

Abstract: Provided is a multi-channel light-receiving module, which comprises an incident collimator, a light-splitting assembly, an optical path conversion assembly and a photoelectric chip array which are arranged in sequence, wherein the light-splitting assembly comprises an inner reflector and a plurality of optical filters, and the optical filters are respectively arranged on an output end of the inner reflector; the channel interval of photoelectric chips in the photoelectric chip array is less than the channel interval of an adjacent optical filter; the optical path conversion assembly comprises a plurality of emergent collimators and an optical fiber connected to each of the emergent collimators; a plurality of paths of optical signals output by the light-splitting assembly are respectively coupled into corresponding optical fibers after passing through the plurality of emergent collimators; and the plurality of paths of optical signals are output by output ends of the plurality of optical fibers and are then c

Abstract: An example fiber control collar is provided. The fiber control collar includes a body, an opening, and a protrusion. The body includes a front surface and an opposing rear surface. The opening is formed in and extends through the body from the front surface to the rear surface. The protrusion extends from the front surface. The fiber control collar is configured to be positioned within a complementary hollow section of a connector backshell component to maintain fibers of a fiber optic cable away from pinch points during assembly of the fiber optic connector.

Abstract: A factory processed and assembled optical fiber arrangement is configured to pass through tight, tortuous spaces when routed to a demarcation point. A connector housing attaches to the optical fiber arrangement at the demarcation point (or after leaving the tight, tortuous spaces) to form a connectorized end of the optical fiber. A fiber tip is protected before leaving the factory until connection is desired.

Abstract: The invention relates to an optoelectronic device comprising a photonic interposer comprising: a photonic circuit containing at least one active optical component, an upper interconnect layer comprising at least one upper control portion, a lower interconnect layer comprising at least one lower control portion and lower intermediate portions, at least one TSV directly connecting the upper control portion to the lower control portion, conductive vias connecting the lower intermediate portions to the active optical component; at least one first microelectronic chip joined to the upper face of the photonic interposer; a second microelectronic chip joined to the lower face of the photonic interposer, and connected to the lower control portion and to the lower intermediate portions.