Abstract: Optical connector arrangements terminate at least seventy-two optical fibers. The optical connector arrangements include multiple optical ferrules that each terminates multiple optical fibers. Some example optical connectors can terminate about 144 optical fibers. Each optical connector includes a fiber take-up arrangement and a flange extending outwardly from a connector housing arrangement. The fiber take-up arrangement manages excess length of the optical fibers. A threadable coupling nut can be disposed on the connector housing arrangement to engage the outwardly extending flange. Certain types of optical connector arrangements include furcation cables spacing the connector housing arrangement form the fiber take-up arrangement.

Abstract: A connector includes a ferrule assembly having a ferrule, a hub and a spring, the ferrule having a distal face accessible at a distal end of the connector housing, the ferrule being movable in a proximal direction relative to the connector housing. The distal and proximal positions are separated by an axial displacement distance. The ferrule proximal movement is against the spring's bias. The cable of the assembly includes an optical fiber contained within a jacket and also a strength layer between the fiber and the jacket that is anchored to the connector housing. The fiber extends through a fiber from the proximal end of the connector housing to the ferrule. The fiber has a distal portion potted within the ferrule. The fiber passage has a fiber take-up region configured to take-up an excess length of the fiber corresponding to the ferrule axial displacement.

Abstract: A plug connector has a cylindrical housing body having at least one step, which forms two different regions each having different housing diameters, wherein the region having the smaller diameter forms a plug-in region and the region having the larger diameter forms a socket region, wherein the plug connector has a lock, which is captively connected to the housing body, wherein the plug connector has an actuator, which is operatively connected to the lock, wherein the plug connector has a plugging positioner, which at least partially surrounds the plug-in region. An attachment flange fits the plug connector and has an insertion region designed as a hollow cylinder, wherein the inner region of the hollow cylinder has at least one step, which forms two different regions each having different inside diameters, wherein the inner region of the insertion region is unthreaded.

Abstract: The optical fiber adapter of the present disclosure includes an outer housing and an inner housing. The outer housing has a chamber surrounded by four walls. A first plate, a first alignment cylinder and two stop blocks are formed in the chamber. The first alignment cylinder extends from the first plate, and the two stop blocks are respectively formed on two of the four walls. The inner housing includes a second plate, a second alignment cylinder and two retaining clips. The second alignment cylinder extends in a longitudinal direction from the second plate. The two retaining clips are formed on the second plate, and each of the retaining clips includes a bending part, an extending part and a hooking part. The bending part has an arcuate cross-section and extends from the second plate. The extending part extends out from the rear end of the bending part in a direction parallel to the longitudinal direction.

Abstract: An interface device includes first and second connectors adapted to be joined together in an operating position. One or more first optical data conduits extend through the first connector, with each first optical data conduit terminating at a respective first optical conduit end which is operatively aligned with a respective first optical lens. One or more second optical data conduits extend through the second connector, with each second optical data conduit terminating at a respective second optical conduit end which is operatively aligned with a respective second optical lens. Each respective second optical data conduit and respective second optical lens are aligned for optical coupling across a coupling region with one of the first optical conduits and respective first optical lens when the first connector and second connector are joined in the operating position. The interface also includes a wireless or contact-type electrical power transfer arrangement.

Abstract: A first connector for a medical instrument has one or more first channels extending through a first surface, and terminating at respective ends. A second connector has opposing second channels for coupling with the first channels. A first power transfer element is mounted on the first connector, and defines a first cross-sectional shape that encompasses at least one of the one or more first channels and has a first central axis extending through the first surface. A second power transfer element on the second connector defines a second cross-sectional shape that encompasses at least one of the one or more second channels and has a second central axis extending through the second surface. The first power transfer element may instead be on a side surface of the first connector, and may couple with a paired element on a receptacle or extension of the second connector.

Abstract: A multiplexer/demultiplexer for at least two wavelengths in O-band. The multiplexer/demultiplexer includes a silicon waveguide block having a first port, a second/third port respectively in bar/cross position at an opposing end plane relative to the first port. The silicon waveguide block is configured to provide a general interference excitation of a light wave of a first wavelength and a second wavelength respectively selected from two windows in O-band. The light wave is either inputted via the first port and split into a first output light of the first wavelength out of the second port and a second output light of the second wavelength out of the third port, or is combined of a first input light of the first wavelength from the second port and a second input light of the second wavelength from the third port and outputted via the first port with both wavelengths.

Abstract: An optical fiber cable branch member includes a branch member main body, a cable-fixing portion which holds and fixes, onto the branch member main body, an end portion of a jacket of an optical fiber cable including a first optical fiber core bundle and the jacket which coats an outer circumference of the first optical fiber core bundle, and includes a tension resistance member buried in a cable longitudinal direction, a tube-fixing portion which fixes, onto the branch member main body, a plurality of protective tubes which respectively cover and protect respective outer circumferences of a plurality of second optical fiber core bundles obtained by branching the first optical fiber core bundle extending from the end portion of the jacket, and a main body-fixing portion which fixes the branch member main body onto an object to be attached.

Abstract: The present invention relates to telecommunication techniques and integrated circuit (IC) devices. More specifically, embodiments of the present invention provide an off-quadrature modulation system. Once an off-quadrature modulation position is determined, a ratio between DC power transfer amplitude and dither tone amplitude for a modulator is as a control loop target to stabilize off-quadrature modulation. DC power transfer amplitude is obtained by measuring and sampling the output of an optical modulator. Dither tone amplitude is obtained by measuring and sampling the modulator output and performing calculation using the optical modulator output values and corresponding dither tone values. There are other embodiments as well.

Abstract: A fiber holding tool and a fiber spacing adjustment method, which comprises a body and a cover, among which, the body and the cover are pivotally connected by a rotating shaft, and the body comprises a fiber accommodating groove used to accommodate the fiber, wherein, the fiber holding tool comprises a spacing conversion portion that can be rotated relative to the body, and the body comprises a conversion gap accommodating the spacing conversion portion; the spacing conversion portion comprises a plurality of groove bodies of different spacing for accommodating the optical fibers. The fiber holding tool according to the present invention can use the original fusion splicer to weld the ribbon fiber having a diameter of 200 ?m, without replacing with a new supporting optical communication device, which results in low cost, and can ensure welding quality, and ease the operation.

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: A robot includes: a first arm that has a first light guide path, a second arm that has a second light guide path, a joint portion that has a rotation axis and connects the first arm and the second arm to each other so as to be rotatable about the rotation axis and a light rotary joint that is provided between the first light guide path and the second light guide path inside the joint portion and that optically connects the first light guide path and the second light guide path to each other. In addition, the light rotary joint has a first light guide portion which is fixed to the first light guide path and has a tubular shape about the rotation axis and an end portion of the second light guide path on the light rotary joint side faces the first light guide portion.

Abstract: A structure for directly leading down the optical unit (OU) from the OPPC (optical phase conductor) cable, by the OU leading-down connector (2) invented recently, is used for separating the plastic-pipe OU from the OPPC cable installed on the tower, avoiding the splicing of fibers on the tower of the old technique. Therefore it is possible to assemble the OPPC cable (1), the OU leading-down connector (2), the preformed armor rod assembly (3), the first link fitting (4), the residual cable rack (5), the second link fitting (6), the insulator string (7) on the ground all together. Then the whole assemble can be erected on to the tower. Just as the conventional overhead power line construction. So it is simple and saving in work.

Abstract: The present invention discloses a 2D square-lattice PhC with rotated hollow square rods and rotated triangle rods comprising a high-refractive-index dielectric rod and a low-refractive-index background dielectric rod, and providing a 2D square-lattice PhC structure having a large absolute PBG relative value. The unit cell of the square-lattice PhC includes a high-refractive-index rotated hollow square rod, a high-refractive-index triangle rod and a low-refractive-index background dielectric, the hollow square rod has an outer contour being the first rotated square rod and a hollow part with a cross section being the second rotated square rod; the cross section of a high-refractive-index triangular rod is a right-angle triangle located at the hollow part of the square rod, the triangular rods are four right-angled triangular rods, the vertex connecting lines of four triangular rods form a third rotated square rod; the hypotenuse connecting lines of four triangular rods form a fourth rotated square rod.

Abstract: A method for making an optical fiber connector includes the following steps: Providing a casting mold having at least one casting cavity, and arranging at least one optical fiber assembly in the at least one casting cavity; Feeding plastic material into the at least one casting cavity; Solidifying the plastic material so as to form a plastic portion which solidifiedly bonds the at least one optical fiber assembly, where an end of the at least one optical fiber assembly emerges from the plastic portion, then removing a lower mold plate of the casting mold; Using a hard grinding disk to grind the end of the at least one optical fiber assembly; and Disposing the casting mold into an atomization facility, and atomizing lens material to the end of the at least one optical fiber assembly, acting with a manner of epicyclic gearing revolving therearound and with their own axes, so as to form a lens on the end of the at least one optical fiber assembly such that the lens is heated and solidified.

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 using a remote release are disclosed.

Abstract: Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.

Abstract: In an integrated polarization splitting and rotating photonic device comprising at least one first waveguide; a second waveguide, both said waveguides extending from an input section to an output section; a top cladding; a bottom cladding and a symmetry-breaking layer so as to form an optical guiding structure in a wafer chip, said top and bottom claddings extending throughout the whole optical guiding structure sandwiching said waveguides therebetween, said symmetry-breaking layer extends in the optical guiding structure at least over the whole guiding structure length, and, at the input section, the at least one first waveguide core has a predetermined width through the optical guiding structure to the output section, receiving an input light signal, and further, the second waveguide core, both at the input and the output section, has a width narrower than said predetermined width of the first waveguide core; so that the optical guiding structure guides a first mode substantially confined within said at lea

Abstract: Embodiments herein include an optical system, an optical component, and an associated method of passive alignment in which complementary magnetic patterns are used to provide passive alignment between optical elements. The magnetic coupling between the magnetic patterns operates to align optical elements in at least two dimensions. The magnetic coupling provides a temporary holding force on the optical elements until the optical elements are secured using epoxy or other adhesive.

Abstract: This document describes techniques and apparatuses that implement a high thermal conductivity region for optoelectronic devices. In some embodiments, a printed circuit board (PCB) includes a high thermal conductivity region that extends through the PCB. The high thermal conductivity region has first and second surfaces that are approximately coplanar with exterior layers of the PCB. A side-emitting optoelectronic device is mounted to the first surface of the high thermal conductivity region via conductive material that enables conduction of the device's heat into the high thermal conductivity region. The high thermal conductivity region can then transfer the heat away from the device and toward the second surface of the high thermal conductivity region, thereby improving the device's thermal performance.