Abstract: A protect cap for an optical fiber adapter according to the present disclosure is provided. The protect cap includes a casing defining a passage for receiving the optical fiber adapter, a pair of supporting lugs formed on the casing, a covering lid, and a pair of supporting arms extending from the covering lid. Each of the supporting lugs defines a shaft hole. Each of the supporting arms is provided with a shaft, wherein the shafts are positioned in the shaft holes, respectively such that the covering lid is pivotally connected to the casing. A first protrusion is formed on one of the shafts and a second protrusion is formed on an inner surface of one of the shaft holes. When the shafts are rotated to bring the first protrusion into contact with the second protrusion, the covering lid is kept in an open position with respect to the casing.

Abstract: A photonic device assembly including a photonic device fabricated on a chip substrate, the chip substrate having a physical alignment feature fabricated therein, and a frame to couple an external optical lens or interconnect to the photonic device. The frame has a frame facet abutted to a complementary facet of the physical alignment feature. An adhesive permanently affixes the frame to the photonic device as aligned by the abutted facets. A method of forming a photonic device assembly includes microfabricating a physical alignment feature in a chip substrate of a photonic device and joining a frame to the chip substrate by abutting a facet of the coupling to a complementary facet of the fabricated physical alignment feature.

Abstract: In one example embodiment, an optoelectronic communications assembly having an optical receiver or an optical transmitter includes an optical interface disposed at an end thereof and through which optical signals are communicated by the optical receiver or optical transmitter. The optoelectronic communications assembly also includes an electronic component and a first electrical interface disposed at the optical interface end of the optical communications assembly and communicatively coupled to the electronic component.

Abstract: A cable assembly, comprising a housing having a plurality of receiving grooves recessing forwardly from a rear surface thereof, a plurality of lenses located on a front surface of the housing, a plurality of conductive terminals received in the housing and arranged in two rows, a cable electrically connected to the conductive terminals and a plurality of optical fibers received in the receiving grooves and alignment to the lenses, respectively. The receiving grooves are located between two rows of the conductive terminals.

Abstract: An optical connector includes a substrate, a photoelectric element and a positioning element on the substrate, a lens element, and an optical fiber. The positioning element defines a through hole, in which the photoelectric element is received to allow visual inspection for determining if the photoelectric element is positioned to a designated position in relation to the positioning element, and includes a positioning structure. The lens element includes an incident surface, an emitting surface, a reflecting surface, a locating structure and a first lens formed in the incident surface, and a second lens formed on the emitting surface and optically aligned with the first lens via the reflecting surface. The lens element is precisely positioned on the positioning element by matching the locating structure with the positioning structure, to align the first lens with the photo electric element. The optical fiber is aligned with the second lens.

Abstract: Cable assemblies, optical connector assemblies, and optical connector subassemblies employing a translating element and a unitary alignment pin are disclosed. In one embodiment, an optical connector assembly includes a connector housing defining a connector enclosure and a connector housing opening, a unitary alignment pin including a first pin portion and a second pin portion, and a translating element including a first bore, a second bore, and an optical interface. The unitary alignment pin is secured within the connector enclosure. The first pin portion is disposed within the first bore and the second pin portion is disposed within the second bore such that the translating element translates along the first pin portion and the second pin portion within the connector enclosure.

Abstract: A laser optical system using optical fiber transmission, includes a first optical fiber for transmitting laser light emitted from a laser oscillator, a collimator lens for collimating laser light emitted from the first optical fiber, a spherical array lens including a plurality of cells for converging laser light emitted from the collimator lens into a plurality of spots, a plurality of second optical fibers each having a smaller core diameter than the first optical fiber and configured to admit the laser light converged into the corresponding spot by the spherical array lens, the second optical fibers having output ends that have mutually parallel axial lines and are arranged linearly in a single row, and a linearization optical unit for shaping laser light emitted from the second optical fibers into laser light having a linear cross section at an illuminated surface.

Abstract: A printed circuit board includes a substrate, a signal output circuit formed on the substrate for outputting a clock signal, a shield for covering the signal output circuit, a power supply wiring for connecting the signal output circuit and a power source, and a trap filter provided to the power supply wiring and provided inside the shield, for attenuating a frequency component corresponding to a frequency of clock signal. The trap filter includes a resonance circuit having one portion of the power supply wiring, an inner-layer wiring of the substrate located below the one portion of the power supply wiring, an inner-layer ground wiring of the substrate located below the inner-layer wiring, and a via hole for connecting the one portion of the power supply wiring and the inner-layer wiring.

Abstract: Dense shuttered fiber optic connectors and assemblies suitable for establishing optical connections for optical backplanes in equipment racks are disclosed. In one embodiment, a fiber optic connector assembly is provided. The fiber optic connector assembly comprises a fiber optic connector. The fiber optic connector assembly also comprises a slideable shutter disposed in the fiber optic connector. The slideable shutter has an opening(s) configured to be aligned with a plurality of lenses disposed in the fiber optic connector in an open position, and configured to block access to the plurality of lenses disposed in the fiber optic connector in a closed position. The fiber optic connector assembly also comprises an actuation member coupled to the slideable shutter configured to move the slideable shutter from the closed position to the open position.

Abstract: An optical connector includes an optical element to be optically connected to an optical fiber; and an optical component. The optical component includes an element fixation part configured to fix the optical element to the optical component; a ferrule attachment part to which a ferrule having the optical fiber connected thereto is to be attached; and a lens to face the optical fiber when the ferrule is attached to the ferrule attachment part. The optical element is positioned relative to the optical fiber in response to attachment of the ferrule to the ferrule attachment part.

Abstract: Provided is an optical path change member including a holding member body formed of a transparent material. The holding member body includes: at least two rows of optical-fiber insertion holes which hold optical fibers inserted therein, such that the optical axes of the optical fibers are inclined with respect to an optical axis of the optical device, and a reflective inner surface which totally internally reflects light incident from the optical-fiber insertion holes to a surface of the holding member body configured to face an optical device on a board.

Abstract: An opto-electronic device assembly adapted for mounted on a mother board includes a case and opto-electronic devices. The case has multiple cavities opening forwards and downwards. Each opto-electronic device includes an optical engine module and an electrical socket. The optical engine module includes an optical engine, an optical transmission interface and an electrical transmission interface with electrical pads. The electrical socket has a plurality of terminals with one ends contacting with PCB and another opposite ends contacting with the electrical pads. Each electrical transmission interface is removeably assembled in the electrical sockets to complete electrical connection between the substrate and the mother board. The opto-electrical devices are received in the cavities in a condition that the optical transmission interfaces exposes to a front open of the case.

Abstract: A data transmission network comprising: a base comprising: a base light source and a base light detector; a plurality of nodes, each node comprising a node light source and a node light detector; and a plurality of optical fibers arranged to form a optical fiber network. Each optical fiber is arranged to receive light from the base light source, transmit the light received from the base light source to one or more of the node light detectors via an air gap, receive light from one or more of the node light sources via an air gap, and transmit the light received from the node light source(s) towards the base light detector.

Abstract: An optical fiber connector includes optical fibers, a connector body, two first glue layers, and two second glue layers. The optical fibers are received in grooves and aligned with optical lenses formed on the connector body. The first and second glue layers fill in the recesses to hold the main portion and the front portion of the optical fibers securely in place.

Abstract: An optical connector comprising a housing (11) including a bottom wall, a plurality of side walls each of which stands from the bottom wall, and an opening defined by the side walls; a metal lead (21) mounted on the bottom wall; a photoelectric conversion element (23) mounted on the metal lead (21); a resin case (26) covering the photoelectric conversion element (23); a lens (25) corresponding to the photoelectric conversion element (23) and provided on the resin case (26); and an electromagnetic shield (12) provided on the resin case (26) and including a first through hole (12e) from which the lens (25) is exposed.

Abstract: Embodiments of the invention are directed to an optical USB (OUSB) to enhance the data rate of USB by adding super-high data rate (e.g. 10 Gbps) optical communication on top of its current specification so that backward compatibility is achievable. Mechanical tolerances may be achieved by using embedded lenses to expand a beam emerging from the connector prior to entering its mating connector and using an identical lens in the mating connector to collimate the beam back onto a fiber.

Abstract: A method of manufacturing an optical module includes the steps of applying the invisible light onto the resin member and the optical device, observing, with use of a camera, a part of the resin member located at the optical fiber coupling plane and an image formed at the optical fiber coupling plane by the optical device active layer while applying the invisible light onto the resin member and the optical device, aligning positions of the resin member and the circuit board with respect to each other while observing the part of the resin member located at the optical fiber coupling plane and the image formed at the optical fiber coupling plane, and fixing the resin member to the circuit board while maintaining the aligned positions of the resin member and the circuit board.

Abstract: A subassembly for passive optical alignment includes a substrate, an alignment device on the substrate having a plurality of alignment holes, and an optical element aligned on the substrate with the alignment holes. A first lens device including a first lens on the alignment device aligns the first lens with the optical element to collimate light emitted from the optical element. A second lens device including a second lens collects the light from the first lens. A receptacle has a ferrule alignment hole penetrating the receptacle. A side of the receptacle is assembled on the second lens device to align the ferrule alignment hole with the second lens. The receptacle is assembled on the alignment device to align the second lens with the first lens. The ferrule alignment hole extends to a connector insertion hole formed on an opposite side of the receptacle that secures an external optical connector.

Abstract: In a manufacturing method of a housing-integrated optical semiconductor component, an optical device (26, 27) is packaged on a lead frame (24, 25) having a leg portion (28), and a periphery of the optical device (26, 27) is sealed by an optically transmissive material, whereby an optical semiconductor component (22) is manufactured. Thereafter, a housing (23) is integrally molded to the optical semiconductor component (22) so that the housing (23) covers a portion (30) of the optical semiconductor component, which is sealed by the optically transmissive material.

Abstract: An optical fiber connector including a main body and a block is illustrated. The main body includes a first side, an opposite second side, and a first top surface between the first side and the second side. The first side includes at least two protruding lenses. The first top surface defines a recess, and the recess includes an open end at the second side. The block is securely retained within the recess. The block defines at least two through holes respectively aligned with the at least two lenses. Each of the at least two through holes is securely retaining one optical fiber.

Abstract: An optical module which includes a housing having a placing portion and an optical input-output portion facing an optical input-output surface of a ferrule; a first fixing portion for fixing the ferrule to the housing in the direction of the Z-axis perpendicular to the placing portion; and a second fixing portion for fixing the ferrule to the housing in the direction of the Y-axis perpendicular to the optical input-output surface, wherein the second fixing portion can change states from the first state to the second state; the first fixing portion fixes the ferrule in the direction of the Z-axis, and does not fix the ferrule in the Z-axis direction when the first fixing portion is at a second position; and the first fixing portion moves from the second position to the first position when the second fixing portion changes its state to a specific state.

Abstract: A dust cap assembly includes a sleeve and a sealant that seals an end face portion of a fiber optic ferrule from contaminants and, upon removal, provides remedial cleaning of any foreign matter present on the ferrule when the dust cap assembly was initially installed along with methods of making the same. The sleeve of the dust cap assembly has a through bore and a distal end for receiving the sealant. Further, the sealant may optionally have advantageous mechanical and optical properties such that the dust cap assembly may function as a terminator for testing.

Abstract: A cable assembly (100) includes a first connector (1), a second power connector (2) arranged with the first connector in a side by side manner, and a cable (3). The first connector includes a first insulative housing (11), a set of terminals coupled to the first insulative housing for transmitting electrical signals, and an optical module (14) attached to the first insulative housing and stacked with the terminals for transmitting optical signals. The cable includes a set of first electrical wires (31) connecting with the first terminals, a plurality of optical fibers (32) connecting with the optical module, and a plurality of second electrical wires (33) connecting with the second power connector.

Abstract: An FOT module is provided that has a molded cover in which an optical beam transformer is integrally formed. The molded cover includes at least a nontransparent molded part that is secured to a mounting structure, such as a molded leadframe or a PCB, on which at least one active optical device is mounted. The material of which the nontransparent molded part is made has a CTE that matches, or nearly matches, the CTE of the body of the mounting structure. Consequently, exposure of the FOT module to temperature variations will not result in delaminations at the interface of the mounting structure and the nontransparent molded part.

Abstract: An optical module on the invention provides a multi-layered ceramic package in which the LD, the sub-mount to mount the LD, the optical component to bend the optical axis of the light emitted from the LD toward the lens, and the monitor PD to monitor a portion of the light transmitted through the optical component. These components are mounted on a metal in the package with an adhesive. At least one of the sub-mount and the optical component provides a chamfer in a front bottom corner thereof to provide a room to receive fillets formed in the surfaces facing to and abutting against the other surface.

Abstract: Described herein is an apparatus for improving bandwidth of a transceiver system e.g., a Universal Serial Bus (USB) micro-B connector. The apparatus comprises a first pair of lens units, each lens unit of the pair positioned on either side of an input-output (I/O) bus interface, the pair of lens units to send and receive optical signals respectively; a first housing to shield the first pair of lens units and for physically coupling the I/O bus interface and the first pair of lens units to a receptacle; and a key to grasp the first housing and to lock the first housing with the receptacle.

Abstract: An optical lens connector includes a flat lens and substantially flat alignment surfaces. A lens body has a planar surface, and an optical lens is disposed in the lens body. The lens is a GRIN lens with a flat optical surface through which a light signal is propagated. The flat surface of the optical lens and the connector face enables the lens to be cleaned, and can reduce degradation due to contamination. The lens body can be housed in a sleeve as a rail guide to provide alignment of the lens with a mating connector lens.

Abstract: To reduce optical axis misalignment in an optical communication module, the optical communication module 1 includes a photoelectric conversion element package 10 to which a photoelectric conversion element 12 of either one of a light emitting element and a light receiving element is fitted so as to face one side 11a of a resin housing 11, and an optical fiber coupler 20 mounted on the one side 11a of the resin housing 11 so as to be coupled with an optical fiber, in which the optical fiber 20 coupler includes a metal lens-holding plate 22 holding a lens 23 arranged opposite to the photoelectric conversion element 12, and a resin lens-holding frame 21 that is mounted on the one side 11a of the resin housing 11 and that houses the lens 23 held on the metal lens-holding plate 22 in a light transmission hole 21a1 formed therein, so that the lens 23 is aligned with an optical axis K of the photoelectric conversion element 12.

Abstract: An optically coupled device and an optical module including the optically coupled device are provided that can appropriately and efficiently perform position measurement of an optical surface, and allow a product having superior overall efficiency to be stably manufactured at a low cost. An optically coupled device main body 15 is formed having a shape that allows both first lens surface 5 and second lens surface 8 to be viewed simultaneously from a surface normal direction of at least one of a first surface portion 2a and a second surface portion 3a.

Abstract: A fiber optic coupler includes a housing that receives upstream optical signals from drop optical fibers that are optically coupled to optical network units in a power splitting passive optical network and provides an aggregate upstream optical signal to a trunk optical fiber that is optically coupled to an optical line terminal in the power splitting passive optical network, without having passed through a power splitter. At least one reflector and/or refractor in the housing is oriented to reflect and/or refract at least one upstream optical signal from at least one of the drop optical fibers, so as to produce the aggregate upstream optical signal for the trunk optical fiber. Various configurations of reflectors and/or refractors may be provided. Relative methods are also disclosed.

Abstract: An optical connector package includes a substrate and a casing positioned on the substrate and comprising a positioning pin. The casing and the substrate cooperatively define a receiving space. The positioning pin defines a vent functioning as a sole channel communicating the receiving space with the outside of the casing. The vent is sealed after the optical connector package subjects to all required heating processes.

Abstract: An electrical socket (100) comprises an insulative housing (1) and an optical module (3) arranged on the insulative housing (1), the insulative housing (1) comprises a plurality of electrical contacts (2) received therein to transmit electrical signal, the optical module (3) comprises a plurality of optical members (4) to transmit optical signal.

Abstract: Disclosed are optical connectors having lenses along with methods for making the same. In one embodiment, the optical connector includes a fiber body having a front portion with a plurality of fiber guides, and a connector body having a plurality of connector body fiber guides that lead to a plurality of lenses at a front portion of the connector body. The fiber body attaches to the connector body and may align a plurality of optical fibers to the lenses at the front portion of the connector body. One embodiment has the fiber body configured as a crimp body with a barrel at a rear portion for attaching a fiber optic cable.

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: A modular connector assembly is provided that has both an electrical coupling configuration that complies with the RJ-45 wiring standard and an optical coupling configuration that provides the assembly with optical communications capabilities. In addition, the modular connector assembly is configured to have backwards compatibility with existing 8P8C jacks and plugs that implement the RJ-45 wiring standard. Consequently, the modular connector assembly may be used to communicate optical data signals at higher data rates (e.g., 10 Gb/s and higher) or to communicate electrical data signals at lower data rates (e.g., 1 Gb/s).

Abstract: A multi-wavelength optical transmitting module includes a housing, an optical output block, an optical transmitting block, and an optical multiplexer (MUX) block. The optical output block is coupled to a first coupling hole of the housing and to an optical signal connector, and includes a first lens. The optical transmitting block is coupled to a second coupling hole of the housing and to an electrical signal connector. The optical transmitting block includes a plurality of transmitting devices which respectively output light having different wavelengths and are arranged parallel to the optical output block, and a plurality of second lenses which correspond respectively to the transmitting devices. The optical multiplexer (MUX) block multiplexes optical signals of multiple wavelengths, which were output from the transmitting devices and passed through the second lenses, and transmits the multiplexed optical signals to the optical output block.

Abstract: An optical fiber connector includes an optical fiber cable including two optical fibers; and a connector plug connected to opposite ends of the optical fiber cable for electrical connection to an electronic device. The connector plug includes a shell, a photodiode, a laser diode; and an electrical connector for electrical connection to an electronic device. The photodiode, the laser diode and the electrical connector are housed in the metallic shell, the photodiode is optically coupled to a distal end of one corresponding optical fiber and electrically coupled to the electrical connector, the laser diode optically is coupled to a distal end of the other optical fiber and electrically coupled to the electrical connector.

Abstract: A leadframe of a parallel optical communications module has tapered protrusions disposed on an upper surface thereof that are positioned and shaped to mate with respective tapered openings formed in a lower surface of an optics module of the parallel optical communications module. The tapered protrusions are used as fiducial marks during a mounting process during which an array of optoelectronic devices is positioned, oriented and secured to the upper surface of the leadframe. Subsequently, during a passive alignment process, the lower surface of the optics module is placed in contact with the upper surface of the leadframe such that the tapered protrusions of the leadframe mate with respective tapered openings formed in the optics module, which causes the optoelectronic devices to come into precise optical alignment with the respective lenses.

Abstract: An optical fiber package includes a housing having a plurality of walls. One of the walls includes a via passing therethrough. The optical fiber package also includes an optical fiber mounted in the housing and extending through at least a portion of the via and a connector. The connector has a first portion mounted in the via. The optical fiber passes through the first portion. The connector also has a second portion extending outside the housing and including a collar operable to receive a male protrusion of an external fiber.

Abstract: An optical-fiber connector includes an insulative main body having a pair of optical components extending forwardly therefrom. Each optical component defines at least one lens and a guiding post located at outside of the lens. Each guiding post defines a through hole extend through the guiding post and the main body in a front-to-back direction and fulfilled with the air for transmitting a test light. The test light from the through hole of the guiding post acts as an accurate measuring reference of the true position between the lens and the fiber because of having no displacement of the light path through a through hole.

Abstract: Stub lens assemblies for use in optical coherence tomography. The stub lens assembly has an optical fiber having an end, and an optical fiber ferrule that supports the optical fiber. The stub lens assembly also has a sleeve having a central channel with first and second ends, with the optical fiber ferrule supported within the central channel at the first end. The stub lens assembly further includes a stub lens element having a stub section with a proximal end that resides adjacent the optical fiber end within the central channel of the sleeve. The stub section is formed integral with a lens, which has a lens surface. The sleeve supports the optical fiber end and the proximal end of the stub section in a cooperative optical relationship.

Abstract: A photoelectric conversion module includes: a plurality of optical connectors each connectable to an optical communication path; an electrical connector connectable to an electrical communication path; a circuit board equipped with a light receiving and emitting element, the light receiving and emitting element converting an optical signal received by the optical connector into an electrical signal to be transmitted to the electrical connector and converting an electrical signal received by the electrical connector into an optical signal to be transmitted to the optical connector; and a waveguide optically connecting the optical connector and the electrical connector.

Abstract: A bidirectional optical transceiver is disclosed. In the bidirectional optical transceiver, by implementing, as a stacked structure, an optical bench in which an optical system and an optical-transmitting module are installed and a multi-layer substrate with good thermal, electrical and high-resistance characteristics in which an optical-receiving module and a driving circuit for driving the optical-transmitting module are installed, thermal, electrical or optical crosstalk is prevented, high-speed transmission of transmission signals is possible through high-speed modulation thereof, and miniaturization is achieved.

Abstract: An opto-electronic apparatus comprises a substrate for supporting a plurality of components forming an opto-electronic assembly and an optical component attached to the substrate with an adhesive material, such as a solder or epoxy. The optical component is formed to include a plurality of bond slots disposed in parallel across at least a portion of the bottom surface of the optical component, the plurality of bond slots providing a path for a liquid adhesive material and improving the ability to displace the liquid adhesive material as the component is pressed into the surface of the substrate during the attachment process.

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: A photoelectric connector assembly includes a first lens member connecting with fiber cables and defining convex lenses opposite to fiber cables, a connector and a substrate embedded with waveguides. The connector defines a mating cavity running through a front face thereof and inserted with said first lens member. The connector includes terminals with contacting sections exposing to the mating cavity, a second lens members. The second lens member is located at back of the first lens member and defines first convex lenses at a front face thereof and second convex lenses at a rear face thereof. The first convex lenses are coupled with the convex lens of the first lens member. The substrate defines light ports at free ends of the waveguides. The substrate is seated with the connector and the light ports are coupled with the second convex lenses of the second lens member.

Abstract: An optical subassembly is disclosed, in which an optical device is assembled with an optical receptacle using an anchor effect for the ultraviolet curable resin. The optical receptacle includes a sleeve portion that receives an external optical fiber and a sheath portion that receives the optical device. A bore formed in the sheath portion circumferentially provides a plurality of ribs; while the pillar portion of the optical device that encloses a semiconductor optical device provides a plurality of hollows in positions corresponding to the ribs. The rib shows the anchor effect for the resin filled within the hollow.

Abstract: An optical module with an arrangement is disclosed in which the module has the LD, the TEC, and the lens with the lens carrier also mounted on the TEC. The signal light from the LD is concentrated by the lens and reflected by the mirror each assembled with the lens carrier mounted on the TEC. The TEC is mounted on the bottom metal that covers the bottom of the ceramic package, the first layer of which is widely cut to set the TEC therein. The FPC is coupled in at least two edges of the first ceramic layer left from the cut.

Abstract: An optical module with an arrangement is disclosed in which the module has the LD, the TEC, and the lens with the lens carrier also mounted on the TEC. The signal light from the LD is concentrated by the lens and reflected by the mirror each assembled with the lens carrier mounted on the TEC. The TEC is mounted on the bottom metal that covers the bottom of the ceramic package, the first layer of which is widely cut to set the TEC therein. The FPC is coupled in at least two edges of the first ceramic layer left from the cut.

Abstract: A multi-fiber connector module for optical communications is provided that receives collimated beams of light from a transceiver module and focuses the collimated beams to respective focal points that coincide with the ends of respective transmit fibers. Because the inputs to the connector module are collimated light beams, movements of one or more parts of the connector and/or transceiver module will not result in optical losses as long as the movements are not so great as to prevent the collimated light beams from falling fully on the lenses of the optics system of the connector module. The lenses then focus the collimated light beams onto the ends of the transmit fibers.