Abstract: An optical communication module in which the pin arrangement can be applied flexibly. An optical communication module has an outer shape formed based on normal standards and which is able to communicate with a host-side circuit board, etc. to which it is fitted, via a predetermined communication interface; wherein the optical communication module exchanges input/output I/F information with the circuit board, etc., and the communication interface can be switched to another communication interface based on these input/output I/F information.

Abstract: An optical module with an optical subassembly precisely aligned with an optical fiber is disclosed even when the optical axis of the optical subassembly and that of the optical fiber are perpendicular to each other. The optical module has an auxiliary with a knob and a flange each having a concentric circular periphery. The knob is held by chuck of the welding apparatus, while, the optical subassembly is fixed to the flange. Even when the optical subassembly is slid on the flange to align optically with the optical fiber, the positions of the laser beams for welding are kept on the periphery of the flange.

Abstract: Provided are a method and a system, in which a first device aligns a chip to a socket along a first axis. A second device aligns the chip to the socket along a second axis, and a third device aligns the chip to the socket along a plane formed by the first axis and a third axis. Also provided is a system comprising a first optical element, and a second optical element, where a first elastic element is coupled to the first optical element, and a second elastic element is coupled to the second optical element, and where the first elastic element is aligned to the second elastic element via elastic coupling.

Abstract: A direct attach media converter is provided. The direct attach media converter comprises a media converter module, a connecting wire and a pluggable transceiver module. The media converter module is configured to transform a RJ-45 interface signal into a pluggable transceiver module interface signal or transform a pluggable transceiver module interface signal into a RJ-45 interface signal. The connecting wire is directly connected to the media converter module and is configured to transmit the pluggable transceiver module interface signal. The pluggable transceiver module is electrically connected to the connecting wire and is configured to receive and transmit the pluggable transceiver module interface signal.

Abstract: A plug including main optical connector bodies, a housing for securing and holding the main optical connector bodies on the connecting end side thereof, a cylindrical inner shell surrounding the housing and attached to the housing by screwing a threaded hole formed in a rear wall portion thereof onto a thread formed in the outer periphery of the housing, and a cylindrical outer shell surrounding the inner shell and having a thread formed in the inner periphery thereof on the connecting end side and a step portion formed in the inner periphery on the rear end side thereof, the thread being screwed onto the thread of an enclosure shell. When the plug is coupled to a receptacle, the inner shell is rotated with respect to the housing and the connecting end of the inner shell hits the abutment surface of the enclosure shell and, when the outer shell is screwed onto the enclosure shell, the step portion hits the rear wall portion.

Abstract: On a mounting substrate 101, an LD element 102 and a wavelength converter element 103 are mounted as optical elements. An end of an optical fiber 105 is fixed, at a given length, in a fiber anchoring groove 301 of a sub-substrate 104. The sub-substrate 104 is mounted to the mounting substrate 101 with the surface supporting the optical fiber 105 opposing thereto, and the wavelength converter element 103 and the optical fiber 105 being coupled. By mounting of the sub-substrate 104 to the mounting substrate 101, the coupling position of the output end of the wavelength converter element 103 and the input end of the optical fiber 105 is provided an internal position that is a given distance from the end of mounting substrate 101.

Abstract: Embodiments disclosed herein include fiber optic connectors that include a tray that translates from a retracted position to an extended position along with cable assemblies using the connector and methods for making the same. In one embodiment, the connector includes a housing, a fiber optic body having an optical interface with at least one optical channel, at least one optical fiber in optical communication with the at least one optical channel of the optical interface, a tray that is movable between a first position that retracts the tray into the housing and a second position where the tray extends from the housing, wherein the fiber optic body is essentially stationary with respect to the tray, and an actuator for moving the tray between the first position and the second position.

Abstract: A taper-locking ferrule for use with optical fibers is provided. The taper-locking ferrule has an interior channel. The interior channel is tapered from one end to the other end and has a threaded interior portion. In an embodiment, the threaded interior portion covers approximately half of the interior wall of the channel. A slit may extend along the threaded portion, from the exterior surface of the device to the interior channel, dividing the threaded portion of the interior channel into sections and allowing the interior channel to slightly expand. The threaded portion of the interior channel grasps and secures an optical fiber.

Abstract: In the present idsclosure inter-rack optical plenum may be used to route optical fibers between multiple racks of a system. An intra-rack optical plenum may be coupled to one of the racks and the inter-rack optical plenum. The intra-rack optical plenum may route an optical fiber between a first connector configured to mate with a first device and a second connector conifugred to mate with the inter-rack optical plenum.

Abstract: A plurality of connector modules are mounted to a support frame. The connector modules have respective optical connectors to optically connect with respective electronic devices, where the optical connectors are moveable between a retracted position and an extended position. The optical connector of a first of the connector modules is retractable and extendable independently of a second of the connector modules.

Abstract: A connecting element for connecting a fiber-optic light guide to a light source one time and detaching the fiber-optic light guide from a light source one time is provided. The connecting element includes a housing having a wall, where the housing encloses a cavity, a fiber-optic light guide that passes through the housing and the cavity, a connecting piece corresponding to a connecting section of the light source for establishing the connection to the light source, where the connecting section can be reused after the detachment, and prevention device configured to prevent repeated use of the connecting element and/or the light guide.

Abstract: An optical communication system comprising: an optical circuit board comprising an optical interface having a transmission region, an optical coupling device comprising: a first optical interface having a first transmission region optically coupled to a corresponding transmission region of the optical interface of the optical circuit board, a second optical interface having a second transmission region adapted to be optically coupled to a corresponding transmission region of an optical interface of a mating optical device, a fixation part, wherein the optical communication system comprises a support element glued to the fixation part of the optical coupling device and removably mounted on the optical circuit board.

Abstract: An optical communication module includes a substrate, an optical signal receiving unit, an optical signal emitting unit and a coupler. The substrate includes a first surface and a second surface. The substrate defines through holes passing through the first and second surfaces. The optical signal receiving unit includes optical-electrical signal converters. The optical signal emitting unit includes optical signal generators. Each of the optical-electrical signal converters and the optical signal generators is mounted on the first surface and aligned with a corresponding one of the through holes. The coupler includes coupling lenses. The coupler is fixed to the second surface. Each of the optical-electrical signal converters and the optical signal generators is aligned with a corresponding coupling lens through the corresponding through hole.

Abstract: A retention module (100) for positioning conversion module (8) and a pair of fiber assemblies (7) matched with the conversion module (8) to transfer light signals, the conversion module (100) includes a plurality of pads (81) for contacting with an electrical connector (5) assembled on a substrate (80), the retention module (100) includes a seat (1) with a supporting portion (12) and a head portion (11), the supporting portion (12) includes a bottom wall (121) and a pair of sidewalls (120) to form a window (1203) for receiving the conversion module (8), the head portion (11) includes a top surface (110) higher than the bottom wall (121), a bottom surface (111) and a pair of recesses (1110) recessed from the bottom surface (111) for receiving the pair of fiber assemblies (7).

Abstract: An optical module providing higher reliability during high-speed light modulation and a lower bit error rate when built into a transmitter (transceiver). An optical module contains a taper mirror for surface emission of output light, an optical modulator device, and an optical modulation drive circuit, and the optical modulator device and the optical modulation drive circuit are mounted at positions so as to enclose the taper mirror.

Abstract: A substrate mounting type photoelectric conversion connector capable of reducing stress produced in a portion in which a lead terminal and a substrate are connected to each other is provided. The substrate mounting type photoelectric conversion connector includes an optical unit including a fitting portion to which a mating optical member can be fit, in which at least a portion that includes the fitting portion and serves as a path of optical signals is formed of a light-transmissive material; a photoelectric conversion unit including a photoelectric conversion element that is disposed such that an optical axis coincides with an optical axis of the mating optical member; and a lead terminal that is connected to the photoelectric conversion unit and that electrically connects the photoelectric conversion element to a substrate, the optical unit provided with a substrate connecting portion that is configured connect to the substrate.

Abstract: A fiber optic and electrical connection system includes a fiber optic cable, a ruggedized fiber optic connector, a ruggedized fiber optic adapter, and a fiber optic enclosure. The cable includes one or more electrically conducting strength members. The connector, the adapter, and the enclosure each have one or more electrical conductors. The cable is terminated by the connector with the conductors of the connector in electrical communication with the strength members. The conductors of the connector electrically contact the conductors of the adapter when the connector and the adapter are mechanically connected. And, the conductors of the adapter electrically contact the conductors of the enclosure when the adapter is mounted on the enclosure.

Abstract: An AOC assembly comprising two printed circuit boards (PCB) (63), a board holder (61) and two dust proof, heat conducting metal covers (64) with integrated head spreader. Each of the two PC boards has a lower edge (632) extending in a longitudinal direction with circuit pads on opposite sides of PCB thereof. The board holder has two opposite vertical datum faces with two of said PC boards respectively positioned thereon. The two heat conducting covers oppositely fixed to the holder in a transverse direction perpendicular to the PC boards. When assembled, the integrated heat spreader of heat conducting metal shell would touch the active electronic components on the PCB and dissipate their excessive heat therefrom.

Abstract: An optical-electrical connector assembly comprises a housing, a printed circuit board received in the housing and including a number of converting elements, a lens member, a ferrule aligned with the lens member and having a resisting portion, an integrated securing member, a coiled spring received in the securing member, and an optical cable having a number of optical fibers. The ferrule has a first engaging portion and a second engaging portion engaged with the housing. The coiled spring is compressed between the resisting portion and the first engaging portion.

Abstract: An AOC connector is provided that has a molded plastic leadframe that obviates the need to use an optical connector in the AOC and that is capable of operating over a wide temperature range and a large number of temperature cycles. The AOC connector includes a plastic optical port that is adapted to be connected via an optically-transparent adhesive material to an end of an optical fiber cable.

Abstract: A miniature pluggable video module having a length less than one inch, and a width less than three quarters of an inch, and a plurality of pin connectors attached to the back of the housing. The pluggable video module can be mounted horizontally or vertically. Inputs and outputs of the module can be adapted to include various types of optical or electrical connectors. The inputs and outputs of the module can be modified into various combinations of optical or electrical configurations, and the combinations of inputs and outputs also can be modified.

Abstract: A connector module includes a module optical connector and an engagement member to engage with a device having a device optical connector. The engagement member upon engagement with the device is to cause movement of the module optical connector towards the device optical connector.

Abstract: Provided is a compact optical communication module which is configured and structured so as to be suitable for high-speed transmission and which facilitates the fixing and positioning of optical elements and prevents misalignment of the optical axis during temperature change. An optical communication module is constituted so as to have a transceiver circuit as the circuit substrate, a submount unit, a fiber stub as an optical connector member, and an optical fiber coupling member. The optical communication module is configured as a modular component in which the optical axis of an optical element mounted on the submount unit is roughly parallel to the mounting surface of the transceiver circuit.

Abstract: According to one embodiment, an optical module includes a light emitting device, a driver IC, a first lead, a ground lead, a second lead, an input lead, and a power supply voltage lead. A second electrode of the light emitting device is supplied with a voltage on a ground side from a second pad through the first lead. A first electrode is supplied with a voltage on a power supply side from the power supply voltage lead or from a first pad through the second lead.

Abstract: The present invention relates to a cage for thermal management and for housing an electronic module. The cage includes top, bottom and side walls joined to form an interior cavity. The side walls form an enclosure having a first panel. A thermally conductive pathway is disposed on the first panel. The enclosure receives an electronic device such as a transceiver module and a heat sink mounted on the first panel. The thermally conductive pathway is disposed between the electronic device and the heat sink so that heat from the electronic device is transmitted via the thermally conductive pathway to the heat sink.

Abstract: An active optical cable is provided that incorporates a power management solution. The AOC has plugs are configured to mate with respective USB sockets. The AOC is used to interconnect a USB host with a USB device. To the USB host and to the USB device, the AOC appears to be a standard USB electrical cable. Each of the plugs of the AOC has an optical-to-electrical and an electrical-to-optical (OE/EO) conversion module that converts electrical USB signals output from the USB host or USB device into optical signals and converts optical signals carried on the optical fibers of the AOC into electrical USB signals. The plugs include controllers that monitor certain conditions of the AOC and that select the power levels to be used in the plugs based on detected conditions.

Abstract: Provides a cooling device (100) for cooling at least one pluggable module (200) each having a pluggable component (20) and a frame (32) for accommodating the pluggable component, the frame having an opening (33) on a top wall thereof. The cooling device comprises at least one thermal conductive block (40), a heat radiator (70) and a resilient thermal conductive pad (60). The resilient thermal conductive pad being adapted to be in a substantially released position when the pluggable component is decoupled from the frame and substantially biased when the pluggable component is inserted into the frame thus exerting a biasing force on the thermal conductive block and the heat radiator whereby the thermal conductive block is pressed through the opening of the frame into direct thermal contact with the pluggable element of the pluggable module for conducting the heat generated by the pluggable component to the heat radiator through the thermal conductive block and the resilient thermal conductive pad.

Abstract: An optical connector includes a fiber holder to hold optical fibers; a housing to accommodate the optical fibers and the fiber holder; and a thermally driven actuator to displace at least a part of the fiber holder upon application of heat from a first position at which the fiber holder is retracted inside the housing to a second position that allows the optical fibers to be optically coupled to a counterpart connector.

Abstract: An optical communications module is provided with an EMI shielding system that comprises a resistive coating disposed on one or more inner surfaces of the module housing. The resistive coating has a thickness that is greater than or equal to one skin depth and has a resistivity that is low enough to support electrical current flow, but high enough to absorb EMI radiation of a particular wavelength or wavelength range. The combination of these features causes EMI radiation to propagate in the resistive coating due to skin effect. The resistive coating absorbs at least a portion of the EMI radiation propagating therein.

Abstract: A receptacle connector including a receptacle housing having a housing cavity that is configured to receive a plug connector. The housing cavity is defined by an interior sidewall that extends along the mating axis and has a guide track thereon. The receptacle connector also includes a communication component that is disposed within the housing cavity and configured to communicatively engage the plug connector. The receptacle connector also includes a coupling member that is disposed within the housing cavity and is configured to engage the plug connector. The coupling member is movable bi-directionally along a mating axis and has a latch element that is slidably engaged to the guide track of the sidewall. The guide track forces the latch element toward the plug connector as the coupling member moves along the mating axis. The latch element capturing the plug connector in a locked position.

Abstract: An optical data communication module assembly includes a mountable module body, a fiber guide tube having one end attached to the module body, and a fiber clamp sleeve having a barrel retained within the other end of the fiber guide tube. The interior of the fiber guide tube and exterior of the fiber clamp sleeve have correspondingly tapered diameters and mating engagements. Sliding the fiber clamp sleeve within the fiber guide tube can engage and disengage these mating engagements and also clamp and unclamp an optical fiber within the fiber guide tube.

Abstract: In a receptacle cage, a front EMI finger in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between the peripheral edge of a slot of a cover, into which a plug connector for the optical module connected to a receptacle connector in a receptacle connector accommodating portion is inserted, and a peripheral surface of a plug connector and a gap between a lower surface of the cover and a surface, on which a printed wiring board is mounted, are shielded by an EMI gasket serving as a second shield member and an EMI gasket serving as a third shield member, respectively.

Abstract: An optical connector includes a jumper, optical fibers and an optical-electric coupling element. The jumper includes a first side surface and a second side surface. A locating flange extends from the first side surface. The locating flange includes a first vertical surface. The jumper defines receiving holes through the first and second side surfaces and the first vertical surface. Each of the optical fibers is received in a respective receiving hole. The optical-electric coupling element includes a third side surface defining a locating cavity. The locating cavity includes a second vertical surface forming coupling lenses. The locating cavity also includes a lower sidewall and an upper sidewall defining an opening. The second vertical surface is substantially perpendicular to the upper sidewall. The locating flange is inserted into the locating cavity, with each coupling lenses aligned with a respective optical fiber.

Abstract: A fiber optic connector system is described which includes a plug and a socket. The optically active surfaces of the plug and socket are automatically protected from soiling as soon as the connection is opened.

Abstract: Provided is an inner module for holding a plurality of connectors. The inner module includes a first cylindrical portion having a first outer wall spaced radially from a first inner wall to form an annular volume and a second cylindrical portion having a second outer wall spaced radially from a second inner wall to form an annular volume. The inner module also includes a connecting portion to connect the first cylindrical portion to the second cylindrical portion. Each of the first and second cylindrical portions have an opening in an axial direction having a width that is narrower than a distance between the first inner wall and the first outer wall.

Abstract: An optical fiber connector for terminating an optical fiber is provided. The optical fiber connector includes a housing configured to mate with a receptacle. The connector also includes a collar body disposed in the housing and retained between the housing's outer shell and a backbone. The collar body includes a swivel head coupled to a front end portion of the collar body, where the swivel head is configured to receive a ferrule. The swivel head is configured to pivot with respect to the front end portion of the collar body by a controlled amount upon a side pull force being placed on the connector and/or optical fiber.

Abstract: Various optical isolator embodiments are disclosed. Embodiments comprise a waveguide section utilizing materials that induce a propagation constant shift that is propagation-direction-dependent. Embodiments are characterized by a cutoff frequency for forward propagating waves that is different than the cutoff frequency for reverse waves. A particular embodiment is constructed as a single-mode waveguide on a substrate. The cross-section of the waveguide is inhomogeneous in terms of materials. This inhomogeneity induces a propagation constant shift, which is propagation-direction-dependent. This device works as an optical isolator from the cut-off frequency of the lowest forward wave (lower frequency) to one for the lowest reverse wave (higher frequency). Various configurations consistent with the principles of the invention are disclosed.

Abstract: Devices and methods for passing optical radiation into and out of a body lumen may include a rotatable ferrule for use in an optical guidewire and methods for using a rotatable ferrule. The rotatable ferrule may be either rotatably captured by and free to rotate within a guidewire, or may rotate upon release from a releasable, mechanically stable friction-fit engagement with a guidewire. Sterile interfaces for readily connecting and disconnecting an optical guidewire with and from other optical instrumentation while maintaining the sterility of the guidewire, and methods for using a sterile interface device are disclosed. Interface devices can be used to provide either direct or indirect optical and mechanical connection between an optical guidewire and peripheral instrumentation.

Abstract: Embodiments of a barrel for use with fiber optic connections and method of manufacturing are disclose herein. In one embodiment, a barrel comprises a first portion. The first portion having a wedge protruding from a distal end of the first portion at an angle and a component cavity for receiving an opto-electric component therein. The barrel further comprises a second portion having a fiber cavity for receiving one or more fiber cables therein, wherein the second portion is moldably coupled onto the distal end of the first portion around the wedge. The second portion may further comprise a panel interface for mounting the barrel within a panel.

Abstract: An optical communications module is provided with an EMI shielding system that comprises a resistive coating disposed on one or more inner surfaces of the module housing. The resistive coating has a thickness that is greater than or equal to one skin depth and has a resistivity that is low enough to support electrical current flow, but high enough to absorb EMI radiation of a particular wavelength or wavelength range. The combination of these features causes EMI radiation to propagate in the resistive coating due to skin effect. The resistive coating absorbs at least a portion of the EMI radiation propagating therein.

Abstract: An optical data communication module, such as a transceiver, transmitter or receiver, has two parallel substrates with metal layers. An opto-electronic device between the substrates is shielded against electromagnetic interference by the metal layers and conductors, such as vias, which are distributed around a periphery of the opto-electronic device and connect the metal layers.

Abstract: In one embodiment, an optical transceiver assembly includes an active component substrate, first and second fiber securing devices, and a holder device coupled to the active component substrate. The holder device includes an active optical component recess that encloses a first and second active optical component of the active component assembly, and first and second fiber-locating holes having an engagement feature at the active optical component recess such that an end of first and second fibers inserted into the first and second fiber-locating holes are aligned with the first and second active optical components along the x-, y-, and z-axes. In another embodiment, an optical component assembly includes an active component substrate having a solder ring, a fiber securing device, and an active optical component on the active component substrate. The fiber securing device is aligned with the active optical component by the solder ring.

Abstract: Some embodiments include a latch mechanism and an optoelectronic module that includes the latch mechanism. The latch mechanism may include a driver, a follower, a pivot member, and a cam member. The driver may be configured to rotate relative to a housing of the optoelectronic module about an axis of rotation. The follower may be configured to be slidably positioned relative the housing. The follower may include a resilient member configured to interface with the housing and may define an opening including a protuberance. The pivot member may be coupled to the driver or to the housing and may define the axis of rotation. The cam member may be coupled to the driver and may be configured to engage the follower from within the opening so as to urge the follower to slide relative to the housing as the driver is rotated between a latched position and an unlatched position.

Abstract: A flexible circuit board includes: an insulative substrate having a first surface and a second surface opposite to the first surface; a microstrip line having a first signal line formed on the first surface and a first ground pattern formed on the second surface and located in an area opposite to the first signal line; a coplanar line having a second signal line formed on the first surface, and second ground patterns that are formed on the first surface and are spaced apart from both sides of the second signal line; a connection line that is formed on the first surface and connects the first signal line and the second signal line together, the connection line having an opening; and third ground patterns formed on the second surface and arranged in areas located at both sides of an area opposite to the connection line including the opening.

Abstract: A receptacle including a shield housing and a heat sink. The shield housing has a first side configured to be connected to a printed circuit board. The housing has an aperture for insertion of a plug of a cable assembly. The heat sink is connected to the first side or an opposite second side of the shield housing. The heat sink has a lateral end section which extends along an exterior of a least one lateral side of the shield housing.

Abstract: A fiber connector includes a case, a light emitting element, and a fiber. The case includes a lower seat and a fiber receiving portion connected to one end of the lower seat. The lower seat defines a receiving recess with an end surface. An optical coupling portion protrudes downward from the end surface. The fiber receiving portion defines a blind hole. The light emitting element is received in the receiving recess and faces the optical coupling portion. The fiber is received in the blind hole. Light rays emitted from the light emitting element are converged to the fiber by the optical coupling portion.

Abstract: An interposer, comprising: (a) a planar substrate having top and bottom surfaces, the bottom surface defining at least one ferrule alignment structure, and fiber bores, each bore hole being in a certain position relative to the ferrule alignment structure and adapted to receive a fiber; (b) at least one ferrule having an end face and comprising one or more fibers protruding from the end face, and at least one alignment feature cooperating with the ferrule alignment structure to position the ferrule precisely on the bottom surface such that the fibers are disposed in the fiber bores and protrude past the top surface; and (c) at least one optical component having one or more optical interfaces and being mounted on the top surface such that each of the optical interfaces is aligned with one of the fiber bores and is optically coupled with a fiber protruding from the fiber bores.

Abstract: A pluggable optical transceiver is disclosed. The transceiver comprises a plurality of OSAs, an optical member and a plurality of inner fibers to couple the optical member with OSAs. The inner fibers each provides an inner connector to couple with one of OSAs. The housing, which installs the OSAs, the optical member and the inner fiber, is made of metal and has a grooves into which the inner fibers is set so as to arrange them orderly.

Abstract: For providing circuit arrangement and method for transmitting signals from a data source to a data sink, the signals being TMDS encoded, the driver circuit is supplied by a connection interface, connected upstream, assigned to data source, with supply voltage, electrical TMDS encoded signals are electro-optically converted by an LED connected downstream of the driver circuit and coupled into an optical fiber as light supplied with TMDS encoded signals, the direct current portion supplied from TMDS transmitter to connection interface, to data source, is converted by driver circuit to a modulated signal current for controlling LED.

Abstract: An optical fiber adapter according to the present disclosure includes a main body, an inner housing, a cover plate and an elastic shutter member. The optical fiber adapter of the present disclosure may obstruct the light beams emitted from an accommodation room of the main body thereby preventing the eyes from exposure to the light beams.