Abstract: The invention is relevant to optical fiber transmission systems, and in particular, pertains to the transceiver cards in an optical fiber transport system. In particular the invention teaches an improved transceiver card architecture that allows high density, flexibility and interchangeability of functionality.

Abstract: A system package using flexible optical waveguides and electrical wires, and a signal processing method thereof are disclosed. Several rigid substrates having highly integrated electronic elements and optical elements mounted thereon can be electrically and optically connected by using flexible substrates that are electrically wired and optically connected. The package can be variously changed when configuring the package by the flexible substrate and the heat dissipation device and the electromagnetic shielding device are installed in the inside of the package, making it possible to solve electromagnetic wave interference problems and thermal problems occurring in the inside of the package.

Abstract: An optical module includes a fiber array, a laser diode array, a photodiode array and a micro-lens array. The fiber array includes optical fibers which are divided to a transmitter group and a receiver group. The laser diode array includes laser diodes which are grouped in a transmitter group. The photodiode array includes photodiodes which are divided to a monitor group and a receiver group. The laser diode array is provided between the fiber array and the photodiode array. The optical fibers of the transmitter group are optically aligned with the laser diodes of the transmitter group, respectively. The micro-lens array is provided between the laser diode array and the photodiode array, and optically aligns the laser diodes of the transmitter group and the optical fibers of the receiver group with the photodiodes of the monitor group and the photodiodes of the receiver group, respectively.

Abstract: An optical fiber connector (100) includes a first insulative housing (1), a door (2) assembled in the first housing and an elastic piece (3) with one end retained in the first housing and the other end elastically abutting against the door. The first housing defines a top face (10), a front face (11) connecting with the top face and a pair of sidewalls (13). The first housing further defines a receiving cavity (111) opening through the front face thereof, and each sidewall defines a recess (112) opening through the top face and the inner surface of the receiving cavity near an opening of the receiving cavity. The door is movably assembled at the opening of the receiving cavity and defines a pair of shafts (22) received in the recesses. Each recess integrally defines a protrusion (113) over the shaft therein, so as to prevent the shafts from breaking off the recesses.

Abstract: A fiber access terminal includes a drop cable side and a distribution cable side. The sides are separated by a frame to which a variety of cable management and cable connections components may be mounted. Optical fibers are routed from drop and distribution cables through a plurality of routing paths to splice trays for connection to other optical fibers. The terminal includes a base and a dome cover mounted to the base defining an enclosed interior. Passageways between the base and the dome cover are closed by removable covers to limit moisture and animals from accessing an interior of the dome cover. A tether connects the removable covers to the frame. The removable covers include one or more break out regions configured for being removed to receive one or more cables.

Abstract: A photoelectric coupling assembly and manufacturing method thereof enabling a three dimensional electrical wiring pattern is provided. The assembly includes a photoelectric conversion unit equipped with a photoelectric conversion element and a molded article. The molded article has a hole configured and arranged to have an optical fiber inserted there-through such that a distal end of the fiber faces an active layer of the conversion element, a front surface on which the conversion unit is mounted, and a side surface being contiguous to the front surface. The lead being insert molded into the molded article has a first surface being exposed at the front surface and electrically connected to the conversion element, a second surface being exposed at the side surface, and an engaging portion having a width increasing in a direction away from the front surface. At least a portion of the engaging portion is contained inside the resin forming the molded article.

Abstract: An active cable that is configured to communicate over much of its length using one or more optical fibers, and that includes an integrated electrical connector at least one end. The active cable includes an integrated retiming mechanism. Thus, multiple links of cable may be used while reducing the chance that the jitter will exceed allowable limits. The cable may be an electrical to optical cable, and electrical to electrical cable, or one of many other potential configurations.

Abstract: A fiber array unit (FAU) having plurality of optical transmission channels (e.g., fiber optics) terminating at a side surface thereof for carrying optical signals to and/or from waveguides in a planar lightwave circuit (PLC). The optical transmission channels of the FAU terminate at the side surface thereof in a non-linear, cross-sectional pattern (e.g., a curved pattern). The non-linear pattern is determined by a pattern of grooves formed in a substrate of the FAU, in combination with a lid which may also have an inverse, non-linear pattern, to thereby rigidly, reliably and permanently hold the optical transmission channels in place.

Abstract: Thermally tunable optical dispersion compensation (ODC) devices are disclosed. In one aspect, an ODC device may include multiple Gires-Tournois (G-T) etalons. The etalons may be optically coupled together. The etalons may compensate for optical dispersion by collectively delaying light. At least one of the G-T etalons may have a temperature dependent partial reflector. The ODC device may also include at least one thermal device to change the temperature of the G-T etalon having the temperature dependent partial reflector. Methods of making and using the ODC devices are also disclosed, as well as various systems including the ODC devices.

Abstract: Various embodiments of duplex fiber optic connectors and optical transceiver modules are provided. One embodiment comprises an optical transceiver module comprising: an integrally-formed housing having a duplex front port with a pair of alignment holes for receiving a pair of ferrules from a duplex fiber optic connector, the duplex front port having an upper flexible retaining element and a lower flexible retaining element for retaining the pair of ferrules from the duplex fiber optic connector; an opto-electronic assembly contained within the housing; and an electrical interface extending from the integrally-formed housing.

Abstract: An assembly comprises first connection units attached to a shelf and second connection units attached to cards, respectively. Each first connection unit holds at least one first optic fiber, while each second connection unit holds at least one second optic fiber. The first connection unit is connected to the second connection unit so that the first optic fiber is connected to the second optic fiber. Each first connection unit comprises a body and an optic connector. Each body is floatingly supported by the shelf. Each optic connector is floatingly supported by the corresponding body. The double floating-support structure allows “blind mate” connections between the first and the second connection units.

Abstract: The specification discloses an optical transceiver that provides a FPC board to electrically connect the OSA with the circuit board. The FPC board provides pads to be connected with corresponding pads formed on the circuit board and at least one opening in adjacent to the pads. In the present invention, the shape and the position of the opening fit with the outer shape and the position of a corresponding electrical component mounted on the circuit board. By mating the opening in the FPC board with the component on the circuit board, the pads on the FPC board may be aligned with pads on the circuit board.

Abstract: An optical crossbar switch for optically coupling optic fibers comprising: at least one first fiber (21) and a plurality of second fibers (22); a moveable fiber-end carriage (41) coupled to an end of the at least one first fiber and constrained to move along a predetermined trajectory; at least one moveable slack-control carriage (42) coupled to the body of the at least one first fiber and constrained to move along a predetermined trajectory; and at least one moving device (70, 80) controllable to move the carriages; wherein to optically couple a first fiber of the at least one first fiber to a second fiber of the plurality of second fibers, the at least one moving device moves the fiber-end carriage of the first fiber along its trajectory to a position at which the end of the first fiber is optically coupled to an end of the second fiber and moves the at least one slack-control carriage to take up slack in the first fiber generated by movement of its fiber-end carriage.

Abstract: An optoelectronic chip assembly including a printed circuit board (PCB) coupled to a substrate, an aperture formed through the printed circuit board and through the substrate, a heat sink, an array of active electro-optical elements mounted in the aperture and connected to a driving chip controlled by the PCB, wherein the driving chip is coupled to the heat sink. Preferably, the assembly further includes a plurality of passive optical elements disposed for optical communication and data transfer with said active electro-optical elements, but thermally isolated therefrom.

Abstract: A bi-directional optical module with an arrangement to install WDM filters easily and precisely is disclosed. The optical module of the invention provides two or more optical devices, a filter unit installed with one or more WDM filters, and a coupling unit. One end of the filter unit assembles the coupling unit, while the other end thereof assembled a specific optical device. Rest optical devices are assembled with the filter unit such that their optical axes are perpendicular to the axis connecting the coupling unit with the specific optical device. The WDM filters are set on the inner of the filter bore such that the angle thereof is adjusted by rotating it as coming the edges of the WDM filter in contact with the inner wall.

Abstract: In one embodiment, an assembly having a first board, a second board, a fiber bundle, and at least one movable stage is provided. The fiber bundle has a first end and a second end, and the first end of the fiber bundle is attached to the first board first face. The movable stage has a second optical array provided thereon or therein. The movable stage is disposed on the second board such that the at least one motor steers the movable stage. The movable stage is steered such that the second optical array is aligned with the second end of the fiber bundle in a desired manner.

Abstract: A system that facilitates high-speed data transfer between integrated circuit chips. The system contains a first integrated circuit chip, which includes a capacitive receiver and an electrical-to-optical transceiver. The capacitive receiver receives a capacitively coupled voltage signal transmitted from a corresponding capacitive transmitter located on a second integrated circuit chip and converts the capacitively coupled voltage signal into an electrical signal. The electrical-to-optical transceiver converts the electrical signal to an optical signal and transmits the optical signal to an optical device through optical coupling.

Abstract: An optical fiber module includes an optical fiber that transmits a light and a holding unit that holds the optical fiber in a state in which the optical fiber is stretched in its longitudinal direction to change optical characteristics of the optical fiber.

Abstract: The invention relates to an optical fiber plug connector, comprising at least one pair of plug connectors and a coupling, whereby each plug connector comprises a ferrule, each two ferrules of a pair of plug connectors are detachably guided and aligned together within a guide sleeve and the coupling has a housing, for each of the plug connectors. According to the invention, a compact space-saving optical fiber plug connector made from few components may be achieved, whereby the coupling is made from only one component.

Abstract: The present invention relates to the use of zero force sockets to provide power to an optical device, such as a laser diode or photodiode, during active alignment of the optical device. The zero force sockets can be repeatedly changed between an open position for insertion and removal of optical device leads with minimal drag and a closed position for securing and providing power to the optical device leads. A pneumatically driven air cylinder can be used to open and/or close the zero force sockets. Devices for securing the optical device leads in place include, for example, lead clamps, which close upon conductive sleeves into which the optical device leads have been inserted, and conductive leaf springs, which close (when a pneumatic plunger is withdrawn) upon the laser diode leads, securing them in place and providing a conductive pathway.

Abstract: An apparatus is described to provide multi-channel bulk optical power detection. The apparatus has a plurality of optical splitters coupled to respective fiber-optic lines of a plurality of fiber-optic lines. An optimal time-division multiplexer has an input coupled to the plurality of optical splitters. A photodetector is coupled to an output of the optical time-division multiplexer to provide bulk optical power detection. The optical time-division multiplexer includes a scanning mirror.

Abstract: An optical module includes a fiber array, a laser diode array and a photodiode array. The fiber array has optical fibers which are divided to a transmitter group and a receiver group. The laser diode array has laser diodes which are grouped in a transmitter group. The photodiode array has photodiodes which are divided to a monitor group and a receiver group. The laser diode array is provided between the fiber array and the photodiode array. Each optical fiber of the transmitter group, each laser diode of the transmitter group and each photodiode of the monitor group are optically aligned, respectively. Each optical fiber of the receiver group is optically aligned with each photodiode of the receiver group, respectively.

Abstract: An optical transceiver includes a transceiver housing configured to receive an optical sub-assembly insert. The optical sub-assembly insert includes duplex cavities configured to hold a transmit optical sub-assembly front end and a receive optical sub-assembly front end in a fixed spatial orientation for a given optical connector interface. The optical sub-assembly insert is configurable to fit inside a transceiver housing with a relatively wide range of X and Y dimensional tolerance. In one implementation, the X-Y position of the optical sub-assembly insert is dictated by the position of the transmit optical-sub assembly front end after its corresponding back end has been mounted to a heat dissipation element. Any gaps that form between the optical sub-assembly insert and the inside surface of the transceiver housing as a result of the transmit optical sub-assembly position can be accommodated with filler material.

Abstract: An optical coupling device for coupling light with an optical waveguide comprises a mirror formed within an optical waveguide. The mirror comprises a first material, a first reflective end, and a second reflective end. The first material is light conducting and has a first refractive index. The first and second reflective ends reflect and transmit light. The mirror has an axis line. The optical coupling device is useful for extracting light from a waveguide and providing a backlight for a liquid crystal display.

Abstract: An optical transceiver includes a housing formed to be inserted into or extracted from a cage in a host device, a movable lock member for preventing the housing from being extracted from the cage, where the cage includes a lock hole for preventing the housing from being extracted from the cage when the movable lock member is placed into the lock hole, and an integration parts.

Abstract: A disclosed optical waveguide holding device is attached onto a printed circuit board of an optical transceiver that performs conversion between an electric signal and an optical signal. The optical waveguide holding device holds an optical waveguide between an external optical fiber and a photoelectric conversion unit attached onto or formed on the printed circuit board. The optical waveguide holding device includes a first connection part configured to optically connect a first end of the optical waveguide to a light receiving/emitting part of the photoelectric conversion unit; a second connection part configured to optically connect a second end of the optical waveguide to the external optical fiber; an optical fiber forming the optical waveguide, disposed between the first end and the second end of the optical waveguide; a first holder configured to hold the optical fiber on a side of the first end; and a second holder configured to hold the optical fiber on a side of the second end.

Abstract: The invention relates to an optical connector assembly for connecting optical waveguides to electro-optical components, in particular for producing multimedia connections in motor vehicles, for example in accordance with the MOST® standard.

Abstract: A device to serve as a fiber optic cable dummy connector is provided. The device may be have connection ports to accept the connectors terminating a fiber optic cable, such as LC-type connectors. Other configurations may be possible. The device may be used in place of an actual SFP module for connection of the fiber optic cable to a port on a piece of equipment. The device may be made opaque so that no transmission or receipt of data or light (laser) from the fiber optic cable may pass through the device. The device may be manufactured to be one-half the length of an actual SFP module. The device may be manufactured from any suitable material. The device may be used to plug fiber optic cables, inactive or active, into ports on a piece of equipment, in place of using an actual SFP module. The dummy connector may be used in place of coiling fiber optic cables and leaving them unconnected until they may be needed.

Abstract: The present invention provides an apparatus for multiplexing a plurality of light waves with different wavelengths. The apparatus includes a laser sub-assembly, a multiplexer sub-assembly, and a receptacle sub-assembly. The laser sub-assembly includes a plurality of lasers for radiating a plurality of light waves of different wavelengths. The plurality of light waves are multiplexed in the multiplexer sub-assembly. The multiplexed light waves are coupled to an optical fiber by the receptacle sub-assembly.

Abstract: The invention relates to a rear panel bus, with a number of plugs which may be plugged into the modules and a fibre optic cable, for guiding light signals, whereby the fibre optic cable has a number of interruptions in the propagation direction of the light signals, into which means, for injection and decoupling of light signals running in the fibre optic cable may be inserted. The interruptions in the fibre optic cable are arranged such that a plug may be allocated to an interruption. The invention further comprises a module which may be plugged into an optical rear panel bus and means for injection and decoupling of light signals running in an optical fibre cable whereby the means for injecting and decoupling are arranged such as to be able to be inserted in interruptions in the fibre optic cable, to decouple light signals from the fibre optic cable and to inject light signals into the fibre optic cable in the propagation direction.

Abstract: An optical system includes an optical device having waveguides defined in a first light transmitting medium. The optical device includes stops extending upward from a laser platform. The system also includes a laser bar having a plurality of lasers. The laser bar is positioned on the platform such that each laser is aligned with one of the waveguides. The laser bar includes alignment trenches that each includes a secondary stop extending upward from a bottom of the alignment trench. The secondary stop includes layers of material having different composition. The stops each extend into an alignment trenches such that each stop contacts one of the secondary stops.

Abstract: The invention relates to an electro-optical data transmission arrangement with an optical multicore fiber, on the respective end faces of which an electro-optical transducer is arranged, wherein at least one of the electro-optical transducers consists of several segments. The electro-optical data transmission arrangement allows high data transmission rates and broad tolerances in the manufacture.

Abstract: A bandwidth adjustable transimpedance amplifier. The bandwidth adjustable transimpedance amplifier includes a feedback path with a selectable resistance. The bandwidth adjustable transimpedance amplifier is preferably implemented with a photodiode in a five pin package for an optical transceiver system, with a single pin providing a monitor out function and a rate select input.

Abstract: A coupler with an optical element for passing signals between a signaling device and an optical fiber in one direction along a fiber axis and away from the fiber axis in the opposite direction. A molded housing with the optical element houses the signaling device with the optical fiber aligned thereto.

Abstract: A photoelectric integrated circuit device, in which photonic devices provided on the same substrate as the LSI are densely arranged along the four sides of the LSI, and characteristic degradation of the laser diode or photo detector due to heat generation can be prevented, furthermore optical wiring is easily performed on the board.

Abstract: An optical connector includes four main components, namely a clamp; a housing into which the clamp slides; two optical elements, a transmitter and a receiver; and an EMI metal shield surrounding the elements. The clamp has two parallel through holes for receiving fibre terminations, each through-hole having a generally conical mouth for convenient guidance of a fibre termination. Inside of the through-holes there are side resilient clamp members, and there is a single central clamp member. The clamp is of moulded plastics construction, and the clamp members are resilient in the lateral plane. The central clamp member on the other hand has little flexibility and remains essentially static throughout the clamping operation. Each resilient clamping member has a tooth at its end for snap-fitting engagement with the housing at open and closed positions. Fibre terminations are inserted through the clamp mouths and the through-holes and into the sockets of the housing.

Abstract: An optical-electrical transmission connector having resistance to optical axis misalignment, having small loss, easily increasing the number of buses, and capable of being formed of a commonly-used material is provided. In a male connector, one collimating lens facing the other collimating lens when connecting the male connector to a female connector is arranged, and a light guide is arranged corresponding to the focal point of the one collimating lens. A positioning section is arranged corresponding to surroundings of the one collimating lens, and the positioning section has one inclined surface coming into contact with the other inclined surface when connecting the male connector to the female connector.

Abstract: An optical transmission device of the invention has an optical transmitter unit 1 in which a light emitting element and a light receiving element are sealed with resin by transfer molding, and a holder 2 which holds the optical transmitter unit 1 being contained therein and which holds an optical plug being fitted therein with an optical fiber cable fixed to the optical plug. The holder 2 holds the optical plug that has been inserted from a direction generally at right angles to optical axes of the optical transmitter unit 1. The optical transmission device can easily be mounted on a printed board without necessity of a dead area for insertion/extraction of optical plug and can be small in size and thickness.

Abstract: A compact optical transceiver is provided in which a substrate provides for an alignment surface for optical fibers and a lens assembly provides the necessary optical paths for coupling to photodiode and photodetector structures. Appropriate electrical connections on the substrate enable the substrate to be directly connected to a printed circuit board, grid array socket, and the like.

Abstract: An embodiment relates to an image sensor comprising (a) a optical pipe comprising a core and a cladding, and (b) a pair of photosensitive elements comprising a central photosensitive element and a peripheral photosensitive element, wherein the central photosensitive element is operably coupled to the core and the peripheral photosensitive element is operably coupled to the cladding, and methods of fabricating and using the same. The image sensor could further comprise a lens structure or an optical coupler or an optical coupler over the optical pipe, wherein the lens structure or the optical coupler or the optical coupler is operably coupled to the optical pipe.

Abstract: An optical device includes a waveguide immobilized on a base. The device includes a port configured to receive light signals from the waveguide such that the light signals travel through the port. The light signals enter the port traveling in a first direction. The port is configured to change the direction of the light signals from the first direction to a second direction that is toward a location above the device or below the device. The device also includes a wedge configured to receive the light signals from the port such that the light signals travel through the wedge and then exit the wedge traveling in a direction that is at an angle in a range of 88° to 92° relative to the device and that is toward a location above or below the device.

Abstract: A strain sensor includes an optical fiber with at least one optical fiber, a reflector body with a reflective surface, a housing affixed to the optical fiber probe and to the reflector body. The reflective surface is spaced apart at a distance d from the ends of the probe's fibers and receives light from the end of the fiber and to reflect at least a portion of the light into the end of the fiber. The housing is attached to the fiber probe at a first end of the housing and attached to the reflector body at a second end of the housing. The housing is affixed to the material to be measured, and in the material causes a change in gap between the fiber end and the reflective surface, modulating the amount of light received in the receiving fiber, detectable by a photodetector connected to the receiving fiber.

Abstract: A retention mechanism for an electronic or optoelectronic module. In one example embodiment, an optoelectronic module retention clip includes a base, a pair of arms extending from the base, and a protrusion extending from each arm. Each protrusion is configured to engage a complementary structure defined in a de-latch slide and a complementary structure defined in an optoelectronic module shell so as to prevent motion of the de-latch slide relative to the shell when the optoelectronic module retention clip is attached to the optoelectronic module.

Abstract: Display systems that utilize digital micro-mirror device (DMD) technology are finding wide application in the areas of projection systems for color display. The common name for such systems is digital light processing projection systems or DLP projection systems. The systems and methods described herein utilize the non-imaging light to monitor and calibrate the projected image since the high levels of illumination and extreme temperatures of the imaging light require careful attention to the manner of light collection. Light collection is accomplished in a waste gate area by a light collector, e.g., an optical fiber mat, and the collected light is communicated to an associated sensor. The technique is non-invasive and may be applied to existing designs with minimal modification.

Abstract: The invention relates to an optical connector for connecting plastic optical fibers for establishing multimedia connections in motor vehicles according to the MOST® standard with an ESD protection. The object formulated for the invention is to provide a connector which is resistant to voltage flashovers and, in particular, can be handled in a simple manner even after the effect of moisture. The object is achieved by means of an optical connector comprising a dielectric connector housing with a receptacle, an optical connection element and an electro-optical converter, wherein provision is made of at least an electrically conductive protection element against electrostatic discharges in the region of the receptacle.

Abstract: An exemplary embodiment provides for a cable connection apparatus wherein a connector is mounted on a disk drive chassis, or a sub-assembly attachable to a chassis, such that a cable that connects to the connector will do so along an axis parallel to the chassis or subassembly that the connector is coupled to as opposed to a more typical perpendicular coupling. As a result, the cable will not stick straight out from the back of the drive and the drive footprint is also reduced.

Abstract: Information processing equipment includes a photoelectric conversion module disposed on a circuit substrate, a first optical connector connected to the photoelectric conversion module through a plurality of first optical fibers and disposed to an edge portion of the circuit substrate, and a second optical connector disposed on an optical backplane and optically connected to the first optical connector. The disposing direction of the optical fibers in the photoelectric conversion module is in nonparallel with the main surface of the circuit substrate and the disposing direction of the optical fibers in the first optical connector and the disposing direction of the optical fibers in the second optical connector are in nonparallel with the main surface of the circuit substrate.

Abstract: Tunable receivers and techniques for receiving an electrical oscillator signal in the RF, microwave or millimeter spectral range based on photonics technology to use both (1) photonic or optical components and (2) electronic circuit components.

Abstract: An optical waveguide member including a first cladding section, a second cladding section joined to the first cladding section, and core sections formed between the first and second cladding sections. The first cladding section includes a major portion including a first surface and an opposite second surface, and an auxiliary portion formed along one side edge and including a reflecting surface. The core sections includes a first set of core sections formed along a plurality of grooves provided on the first surface of the first cladding section, and a second set of core sections formed along a plurality of grooves provided on the second surface of the first cladding section. Both of light propagating through the first set of core sections and light propagating through the second set of core sections are reflected at right angle by the reflecting surface and propagate through the auxiliary portion of the first cladding section.

Abstract: A communications device may include a connector block. The connector block may include a port. The port may be sized and configured to couple an optical fiber plug. The communications device may include an optical subassembly that may be connected to the connector block. The connector block may include a mount. The mount may be sized and configured to align the connector block and the optical subassembly. The mount may be configured as an EMI shield.