A robust optoelectronic transceiver module which is quick, easy, and inexpensive to manufacture. The transceiver module has a main housing which consists of a potting box with potting material inserted therein. In addition, a circuit board is encased by the potting material. The circuit board has an optical subassembly mounted thereon. The optical subassembly extends outside of the potting box through a recess. Correspondingly, a recess cover is provided for forming a liquid tight seal between the recess cover, the potting box, and the optical subassembly. The module housing may be pluggable via release levers having detentes received in apertures of a receptacle and a pluggable connector of the module mated within the receptacle. The receptacle may include grounding means such as a ground clip mounted within the receptacle and a protective door to limit electromagnetic emissions.

Removable transceiver module and receptacle

An interface converter module is provided for converting data signals from a first transmission medium to a second transmission medium. The module is housed within a metallized housing having a first end and a second end. A shielded electrical connector is mounted at the first end of the housing and is configured to mate to a corresponding connector associated with a first transmission medium. The second end of the housing comprises a media interface which includes an interface connector configured to connect to the second transmission medium. In another embodiment a printed circuit board is mounted within the housing and has mounted thereon electronic circuitry configured to convert data signals from a host device transmission medium to the second transmission medium. The printed circuit board includes contact fingers adhered at each end in order to form a host connector at the first end of the module and a media connector at the second end of the module. The contact fingers at one end form a male ribbon style connector and the contact fingers at the other end may be used for direct connection to the mating media connector or alternatively the contact fingers may be attached to a separate electrical connector or to optical connectors. The circuit board may also include guide tabs having coatings on their edges for static discharge prior to power being coupled to the module.

High speed interface converter module

A robust optoelectronic transceiver module which is quick, easy, and inexpensive to manufacture. The transceiver module has a main housing which consists of a potting box with potting material inserted therein. In addition, a circuit board is encased by the potting material. The circuit board has an optical subassembly mounted thereon. The optical subassembly extends outside of the potting box through a recess. Correspondingly, a recess cover is provided for forming a liquid fight seal between the recess cover, the potting box, and the optical subassembly.

Removable optoelectronic module

An interface converter module includes a metallized housing having a first end and a second end. A printed circuit board is mounted within the housing and has mounted thereon electronic circuitry configured to convert data signals from a host device transmission medium to the second transmission medium. The printed circuit board has not more than twenty contact fingers adhered at one end in order to form a host connector, a media connector is at the other end of the module. The media end having a dual LC duplex optical receptacle, where each duplex portion of the dual LC duplex optical receptacle houses a ROSA and a TOSA. The module and receiver may include interengaging rails and slots and/or keys and keyways to ensure correct matching of modules and receptacles.

Multi-port pluggable transceiver (MPPT) with multiple LC duplex optical receptacles

Fiber optic transmitter electrical elements (112, 116) are implemented on separate vertical boards (106, 108) in a fiber optic module (100). A single optical block (102) implements lenses (120-123) and reflecting surfaces (124, 125) to minimize manufacturing costs. In one embodiment the receiver (111) and transmitter (110) are mounted to receive and transmit vertical boards (108, 106) respectively to nearly face each other but being offset to avoid optical cross talk. In a second embodiment, the receiver and transmitter are mounted parallel with the printed circuit boards to save additional space. The vertical boards (106, 108) have ground planes (114, 118) to minimize electrical cross talk. A shielded housing (119) provides further shielding for EMI. Manufacturing steps of the fiber optic transceiver (100) are disclosed which provide reduced manufacturing costs.

Method and apparatus for vertical board construction of fiber optic transmitters, receivers and transceivers

A plurality of optical fibers (14-14E) are interconnected by using connectors each comprising an optoelectronic device (13-13E) adapted to be connected to an end of each optical fiber for converting optical signals to electrical signals and for converting electrical signals to optical signals. Each connector has a first contact (12-12E) having a cylindrical plug end and a cylindrical socket end located on a common axis and a transverse conductor (21) extending transversely to the axis (20) from the first contact and connected to the optoelectronic device of the connector. The plug end of each contact is adapted to fit snugly within the socket end of another first contact, whereby all of the contacts may be connected and arranged along the common axis. Each of the contacts is free to rotate with respect to other contacts to which it is connected; this permits the various optical fibers to extend in different radial directions from the axis. In a preferred embodiment, each connector further comprises second (23) and third (24) hollow cylindrical contacts surrounding the first contact (22). Hollow cylindrical insulators ( 26, 27) separate and insulate the first, second and third contacts, and appropriate slots permit transverse conductors (29, 31, 32) of the contacts to be connected to the optoelectronic devices (41). In this manner, each connector interconnects electrical ground and power lines, as well as the optical signal lines of the various optical fiber cables (40).

David A. Snyder

Papers

Optoelectronic cable connector