Abstract: A circuit board assembly includes a substrate, a first optical connector, a second optical connector, and at least two planar light wave circuits. The first optical connector includes a first circuit board electrically connected to the substrate, at least one first laser diode, at least one first photodiode, and a first transparent shell. The second optical connector includes a second circuit board connected to the substrate, at least one second laser diode, at least one second photodiode, and a second transparent shell. The planar light wave circuits are arranged between the first and second transparent shells. Each first laser diode is optically coupled with a second photodiode through a first transparent shell, a planar light wave circuit, and a second transparent shell. Each second laser diode is optically coupled with a first photodiode through a second transparent shell, a planar light wave circuit, and a first transparent shell.

Abstract: An optoelectronic assembly includes a substrate subassembly and a cable subassembly. The substrate assembly includes a substrate, a holder disposed on the substrate, an optoelectronic interface IC, and a plurality of optoelectronic components. The cable subassembly includes a lens cover and a plurality of fiber cables bonded to the lens cover. The optoelectronic interface IC and the optoelectronic components are disposed in a cavity formed by side walls of the holder. The optoelectronic components include at least one laser source and a plurality of photodiodes. The lens cover is inserted into the cavity and thereby fixedly engaged with the holder.

Abstract: An optical module base is made up of a plurality of lead frames and a resin structure integrally molded with the lead frames and has an optical device mounting part and an optical waveguide mounting part which are formed in the resin structure. Each of the lead frames includes a connection part to which an optical device is to be mounted and electrically connected and a lead part which is continuous with the connection part. A portion of the thickness of the connection part is embedded in the resin structure and is positioned at the optical device mounting part. A sufficient strength of fixing a lead frame on a resin structure integrally molded with the lead frame can be ensured even if the sizes of the lead frames are miniaturized according to the sizes of electrodes of an optical device to be flip-chip bonded.

Abstract: A pigtail-less optical connector assembly is described that is capable of data rates as high as 10 GHz. The described optical connector assembly connects the optical fiber connector to an optical die element mounted in the connector assembly using optical fiber ribbon and an optical deflecting device. The optical fiber connector is slideable within the connector assembly and is resiliently biased toward a home position. The connector assembly is designed to allow the optical fiber ribbon to flex without damaging the fiber ribbon as the optical fiber connector slides.

Abstract: A circuit board assembly includes a circuit board, a first optical transceiver electrically connected to the circuit board, a first transparent shell optically coupled with the first optical transceiver, a second optical transceiver electrically connected to the circuit board, a second transparent shell optically coupled with the second optical transceiver, and a plurality of light wave guides optically coupled with the first transparent shell and the second transparent shell. The first optical transceiver sends first light signals. The first light signals are transmitted through the first transparent shell, the light wave guides, and the second transparent shell and are received by the second optical transceiver. The second optical transceiver sends second light signals. The second light signals are transmitted through the second transparent shell, the light wave guides, and the first transparent shell and are received by first optical transceiver.

Abstract: As only either of light emitting side wirings and light receiving side wirings crossover each other, the same connectors 30 may be mounted at opposite ends of an optical fiber. Thus, it is possible to provide an optical connector module at low cost. Further, as the optical fiber is connected straight from one side to the other side, an assembly process is easy.

Abstract: An adapter is provided for coupling between a Thunderbolt® compliant connector and a pluggable optical transceiver connector of a pluggable optical transceiver host board, the pluggable optical transceiver connector for connecting with an optical pluggable transceiver and other than a connector compliant with a Thunderbolt® standard. The adapter has a first connector for mating with the pluggable optical transceiver connector and a second connector for coupling with a Thunderbolt compliant connector.

Abstract: An object of the present invention is to provide a new modular SLC (Surface Laminar Circuit) interconnect system for replacing the traditional ceramic substrate implanted with 56 Duece modules, the interconnect system includes an organizer for accurately positioning the connector assemblies, and a plurality of fully populated connector housings defining a pitch same as that defined by the Duece modules. Each connector housing defines two receiving slots to receive two SLC modules which are further commonly held by a heat sink above. Each SLC module is equipped with a plurality of micro-controllers, a plurality of OE glass lenses, a plurality of IC chips, and a molded lens and fiber able assembly.

Abstract: A pluggable optical transceiver mounted on a host system is disclosed. The optical transceiver provides an optical receptacle that receives an external connector, and a mechanism that prevents the optical transceiver from being released from the host system when the optical receptacle receives the external connector, and prevents the optical transceiver from receiving the external connector when the optical transceiver is free from the host system.

Abstract: Methods and apparatuses are provided for performing electromagnetic interference (EMI) containment in a parallel optical communications system. The apparatus includes a curved surface formed in the system housing near the opening through which a stack of ribbon cables passes, and a spring device. The stack of ribbon cables is sandwiched in between the curved surface of the housing and the spring device. The spring device exerts a force on the stack of ribbon cables that presses the stack against the curved surface of the housing and forms a sharp bend in the stack just before the stack passes through the opening in the housing. Because EMI radiation is restricted to propagation along the sharply bent pathway of the stack of ribbon cables, most or all of the EMI radiation traveling along that pathway is either attenuated or reflected before it reaches the opening.

Abstract: Fiber optic interface modules and assemblies using same are disclosed, wherein the modules and assemblies are tolerant to misalignment and have a high coupling efficiency. The module has at least one lens that defines a folded optical path through the module body. The folded optical path is formed by total internal reflection within the module body from an angled wall of the module. The lens has an aspheric front surface and a planar rear surface and is configured to have an optimum tolerance to a lateral misalignment relative to a light source while maintaining a high coupling efficiency between the light source and an optical fiber.

Abstract: A fiber optic interface module and assemblies using same are disclosed, wherein the modules have at least one lens that defines a folded optical path through the module body. The module operably supports one or more optical fibers adjacent an end wall. The module includes one or more lenses formed therein for coupling light from one or more light sources to the corresponding one or more optical fibers. The one or more lenses each have a folded optical path formed by total internal reflection within the module body. The one or more lenses each include a lens surface configured to define a back focus that resides within a corresponding one of the optical fibers.

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: An optical fiber coupling device and a method are disclosed. The optical fiber coupling device includes a first patch strip having a first plurality of optical fiber connectors arranged along a face of the first patch strip and a second patch strip having a second plurality of optical fiber connectors arranged along a face of the second patch strip. The first and second patch strips are in a stacked arrangement where the second plurality of optical fiber connectors is offset from the first plurality of optical fiber connectors in a first and a second direction transverse to a stacking direction. The offsetting improves access to the individual optical fiber connectors which assists an operative when managing or maintaining optical fiber connections and helps to reduce the likelihood of fatigue or failure since adjacent optical fiber connections are undisturbed during this process and the optical fiber connections may be easily accessed without needing to move or manipulate adjacent patch strips.

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: A connector, which can protect a photoelectric conversion device from noise and has high durability includes a plug provided at one end of an optical fiber and a receptacle to which the plug is mounted from above. The plug includes a photoelectric conversion device composed of a semiconductor device that is not covered with a metal case and a metal member provided so as to cover an upper side of the photoelectric conversion device. The receptacle includes a metal housing to which the plug is fixed. The plug and the receptacle are fixed to each other only by engagement between the metal member and the metal housing.

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: An active optical cable is provided that incorporates a power management solution. The AOC has plugs that 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: A connecting device for a fiber optic cable includes a first part having a first housing and first and second electrical connectors located on the first housing, and a second part having a second housing and a third electrical connector located on the second housing. The second and third electrical connectors are adapted to be mechanically and electrically connect with each other or disconnected from each other. The first part further includes electrical components disposed within the first housing and electrically connected to the first and second electrical connectors. The second part receives end portions of optical fibers of the fiber optic cable, and further includes optical transceivers disposed within the second housing which are electrically connected to the third electrical connector and optically coupled to the optical fibers.

Abstract: An optical coupling structure includes an optical amplifier array configured to include a plurality of optical amplifiers arranged in an array direction, an optical fiber array configured to include a plurality of optical fibers arranged in the array direction, and an optical coupling system that optically couples the optical amplifier array and the optical fiber array, wherein, in a non-array direction orthogonal to the array direction, the optical coupling system optically couples beams of light signals to an end face of the optical amplifier array in parallel with a waveguide direction of the optical amplifiers, and optically couples the beams to an end face of the optical fiber array obliquely to the end face of the optical fiber array in the non-array direction.

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 bidirectional communication module includes a light-emitting element, a light-receiving element and an optical waveguide. The optical waveguide performs wavelength division on light received from an optical fiber and guides the received light to the light-receiving element. The optical waveguide also performs wavelength division on light emitted from the light-emitting element and guides the emitted light to the optical fiber. The light-emitting element, the light-receiving element and the optical waveguide are incorporated on an optical substrate.

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: An optical transceiver that provides an inner metal cover in addition to a metal cover and a frame is disclosed. The inner cover includes a ceiling, a front skirt bent downward at a front edge of the ceiling, sides bent downward at both side edges of the ceiling, and a pair of arms extending rearward from respective side ends of the ceiling. The ceiling makes an obtuse angle with respect to the front skirt when the arms are not assembled with the frame, and shapes in convex protruding outward when the metal cover is not assembled with frame and. Assembling the inner cover and the metal cover with the frame, the inner cover comes in securely contact with the metal cover.

Abstract: A device includes a female connector to receive a male network connector of a network conduit, and a first male connector optically communicating with the female connector, where the first male connector includes a first indicator that identifies a first wavelength optical signal. The device also includes a second male connector optically communicating with the female connector, where the second male connector includes a second indicator that identifies a second wavelength optical signal. The device further includes a wavelength splitter to receive an optical signal from the network conduit via the female connector, provide the optical signal to the first male connector when the optical signal corresponds to the first wavelength optical signal, and provide the optical signal to the second male connector when the optical signal corresponds to the second wavelength optical signal.

Abstract: Self alignment of Optoelectronic (OE) chips, such as photodiode (PD) modules and vertical cavity surface emitting laser (VCSEL) modules, to external waveguides or fiber arrays may be realized by packaging the OE chips directly in the fiber optic connector.

Abstract: An optical signal inspection device includes a housing, a diagnostic unit, an optical specimen holder, a light-shielding module, and a guiding unit. A receiving space is defined internally of the housing. The housing has an optical fiber holding area formed thereon. The optical specimen holder has an upper jaw member and a lower jaw member. The light shielding module has a main body and two lateral shielding members disposed thereon. Two side portions of the lower jaw member are formed matchingly to the lateral shielding members. The guiding unit is secured to the upper or lower jaw member. When the upper and lower jaw members are used to clamp the optical fiber for inspection, interference due to ambient lighting can be prevented by the light shielding module. Thus, quick and accurate inspection results can be obtained by the user.

Abstract: A multi-diameter optical fiber link system includes a backplane, a plurality of backplane connectors fixed on the backplane, and a plurality of line card connectors inserted into a corresponding one of the backplane connectors. Each of the backplane connectors has a fiber holder holding optical fibers with a first diameter and a second diameter, and each of the line card connectors has a fiber holder holding optical fibers with a third diameter, such that one optical fiber with the first diameter is linked to one optical fiber with the second diameter, and one optical fiber with the second diameter is linked to one optical fiber with the third diameter, thereby providing bi-directional connection.

Abstract: Provided is an optical transceiver with which at least a pair of printed boards disposed in parallel having respective electric connector sections and at least a pair of transmission and reception optical modules can be easily housed inside a casing whose size is standardized, and the size thereof can be reduced. The optical transceiver is formed by including: a casing; a transmission rigid board and a reception rigid board provided in parallel with a space provided therebetween inside the casing; optical modules for converting an electric signal and an optical signal, respectively, by being connected at outside positions of each of the rigid boards inside the casing via flexible boards and a module mounting board; an optical connector mounted at an end of the casing; and optical fiber arrays which connect the optical modules to the optical connector.

Abstract: Circuits, methods, and apparatus that allow signals that are compliant with multiple standards to share a common connector on an electronic device. An exemplary embodiment of the present invention provides a connector that provides signals compatible with a legacy standard in one mode and a newer standard in another mode.

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: An cable assembly (100) includes an insulative housing (1); a plurality of terminals (212, 222) received in the insulative housing; a plurality of lenses (81); a photoelectric conversion device (93); and a cable (6) including first fibers (63) and second fibers (65), the first fibers connected to photoelectric conversion device which further connected to the terminals, the second fibers connected to the lenses, respectively.

Abstract: An optical interconnection transceiver module comprises a printed circuit board, a carrier, an optical interconnection device and a light-guiding module. The printed circuit board comprises a first area and a second area. The carrier is disposed at the first area of the printed circuit board to make the flexibility of the first area lower than that of the second area. The optical interconnection device is disposed on the carrier and electrically connected with the printed circuit board. The light-guiding module comprises a case disposed on the carrier and at least one reflective mirror. The case comprises a first accommodating slot, a first light channel and a second light channel in communication with the first accommodating slot and the first light channel. The reflective mirror is disposed at the first light channel, and the optical interconnection device is corresponded to the reflective mirror via the first light channel.

Abstract: A two-part optical coupling system is provided for use in an optical transmitter (TX) module. The two-part optical coupling system has first and second optical parts and an air gap at the interface between the two optical parts. A portion of the light produced by a laser diode of the optical TX module is refracted at the air gap and is coupled by the optical coupling system into an end of an optical fiber. A second portion of the light produced by the laser diode is reflected by the air gap and is coupled by the optical coupling system onto a monitor photodiode of the optical TX. The electrical signal produced by the monitor photodiode may be used to monitor and adjust the optical output power level of the laser diode. Because the air gap is formed at the interface between the first and second optical parts, the process of forming the air gap can be incorporated into the optical coupling system manufacturing process without increasing the cost of the manufacturing process.

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: A diode laser having a beam-forming device and a method for producing it are described. The diode laser includes at least one diode laser bar, the diode laser bar having a multitude of emitters, the emitters being disposed next to each other in the direction of their longitudinal axes. The diode laser includes a beam-forming device assigned to the diode laser bar, for the laser beam emerging from the diode laser bar, the beam-forming device having a light-guide device having a plurality of fibers, into which the laser beam is coupled. The maximum thickness of the optical fibers at their end facing the diode laser bar is considerably smaller than their width.

Abstract: An apparatus for providing self-aligned optical coupling between an opto-electronic substrate and a fiber array, where the substrate is enclosed by a transparent lid such that the associated optical signals enter and exit the arrangement through the transparent lid. The apparatus takes the form of a two-part connectorized fiber array assembly where the two pieces uniquely mate to form a self-aligned configuration. A first part, in the form of a plate, is attached to the transparent lid in the area where the optical signals pass through. The first plate includes a central opening with inwardly-tapering sidewalls surrounding its periphery. A second plate is also formed to include a central opening and has a lower protrusion with inwardly-tapering sidewalls that mate with the inwardly-tapering sidewalls of the first plate to form the self-aligned connectorized fiber array assembly. The fiber array is then attached to the second plate in a self-aligned fashion.

Abstract: A photoelectric conversion connector, includes: an optical element that performs one of inputting and outputting an optical signal; an electric element that controls one of a light emission and a light reception of the optical element; and at least one substrate on which the electric element and the optical element are mounted, the substrate including an aligning and connecting part that allows connecting an optical fiber that performs one of inputting an optical signal output from the optical element and outputting an optical signal input to the optical element, the aligning and connecting part being provided on a surface different from a surface on which the optical element are mounted of the substrate, the optical fiber being connected to the substrate via the aligning and connecting part, and the optical element and the optical fiber being arranged and mounted in line along a direction of a thickness of the substrate.

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: The An opto-electro hybrid harness includes, at locations away from first and second connectors, a first relay segment having an EO conversion device, and a second relay segment having an OE conversion device. First and second electric cables lie between the first connector and the first relay segment and between the second connector and the second relay segment. An opto-electric hybrid cable segment lies between the first and second relay segments. An optical fiber is connected at one end to the E0 conversion device and at the other end to the OE conversion device. A first electronic wire of the first electric cable is connected at one end to the first connector and at the other end to the E0 conversion device. A second electronic wire of the second electric cable is connected at one end to the OE conversion device and at the other end to the second connector.

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 fiber connector is disclosed. The optical fiber connector comprises a form having a curved surface with a first end near the bottom surface of the form. The curved surface is perpendicular to the bottom surface of the form at the first end. A first plurality of active optical fibers are positioned along the curved surface of the form in a side-by side arrangement with the tips of each of the first plurality of optical fibers adjacent to the first end of the curved surface. The ends of each of the first plurality of active optical fibers have been striped down to cladding and the cladding of each optical fiber contacts the cladding of the adjacent optical fibers. An inner cover is attached to the form thereby capturing the first plurality of active optical fibers between the curved surface of the form and an inside curved surface in the inner cover.

Abstract: An optical interposer includes grooves (310) for optical fiber cables (104) coupled to a transducer (120). The grooves are formed by etching a cavity (410) in a substrate (130), filling the cavity with some layer (520), then etching the layer to form the grooves. The cavity has outwardly sloped sidewalls on which mirrors (144) are later formed. The groove etch is selective not to damage the sidewalls. The groove depth is uniform due to high etch selectivity of the layer, and also because of good control over the cavity etch due to the low aspect ratio of the cavity. Electrical circuitry for connection to the transducer is fabricated after the cavity filling but before the groove etch. The cavity filling leaves the wafer planar, facilitating fabrication of the electrical circuitry. Grooves can be provided on top and bottom of the interposer. Other features are also provided.

Abstract: A data transport card comprising an interface to receive high speed data streams from at least one client, and a pluggable conversion module which converts said data streams into optical data signals and couples these optical data signals into at least one wavelength division multiplexing channel for transport of said optical data signals via an optical fiber.

Abstract: The present invention relates to an apparatus for wavelength-division multiplexing and demultiplexing, to an optical communication module, and to an optical device. The apparatus for wavelength-division multiplexing and demultiplexing comprises: a first lens block having a lens array at one side thereof; a second lens block having a lens surface corresponding to the lens array and combined with the other side of the first lens block; a receptacle having an optical fiber ferrule fixed at the center thereof and stacked on the second lens block; and a base combined with one side of the first lens block, wherein the first block is stacked on the base.

Abstract: An optical fiber connector includes a shell, a printed circuit board (PCB), and an optical-electrical convertor received in the shell. The PCB includes a loading surface. The optical-electrical convertor includes a substrate, a light emitting module, a light receiving module, a connecting block, a first converging lens, a second converging lens, a first fiber group, and a second fiber group. The substrate is positioned on the loading surface. The connecting block is fixed on the substrate, and defines a first channel and a second channel parallel to the loading surface. The light emitting module and the light receiving module are fixed on the substrate and electrically connected to the PCB. The first fiber group and the second fiber group are received in the first channel and the second channel respectively.

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 adapter for an optical fiber connector includes a fixing base and two terminals. The fixing base has a main portion and two assembly portions formed on the main portion. The terminal has a positioning portion, a connecting portion, and an inserting portion. The connecting portion and the inserting portion extend from opposite ends of the positioning portion, and the positioning portion is positioned in the assembly portion of the fixing base.

Abstract: In a connector system, a first connector is mechanically and optically mateable with a second connector to form one or more optical signal communication links. A wiping cleaner is included on at least one of the first and second connectors for cleaning an optical port of the other of the first and second connectors when the connectors are plugged together. The first and second connectors can further be electrically mateable to provide both optical and electrical signal communication links.

Abstract: Provided is an optical transceiver module of an optical transceiver, which is used for optical communications. The optical transceiver module prevents electrical crosstalk between a light source and a light receiver. Additionally, the optical transceiver module includes an optical transceiver unit including a light source and a light receiver together integrated into a substrate, a circuit unit including a drive circuit driving the light source and a detect circuit reading a signal of the light receiver, and a crosstalk prevention unit connected between the substrate and ground to prevent electrical crosstalk between the light source and the light receiver.