TEMPERATURE CONTROLLED MULTI-CHANNEL TRANSMITTER OPTICAL SUBASSEMBLY AND TRANSCEIVER MODULE INCLUDING SAME

    公开(公告)号:US20200373737A1

    公开(公告)日:2020-11-26

    申请号:US16419379

    申请日:2019-05-22

    Abstract: A temperature controlled multi-channel transmitter optical subassembly (TOSA), consistent with embodiments described herein, may be used in a multi-channel optical transceiver. The temperature controlled multi-channel TOSA generally includes an array of lasers to emit a plurality of different channel wavelengths. The lasers may be thermally tuned to the channel wavelengths by establishing a global temperature for the array of lasers such that the amount of heat communicated to each laser is substantially the same. The global temperature may be established, at least in part, by monitoring the shortest channel wavelength and/or a temperature of the lasers. The temperature of the lasers may then get increased via a shared heating device in thermal communication with the lasers until the shortest monitored wavelength substantially reaches the nominal shortest wavelength or the measured temperature substantially equals the global temperature.

    LOCKING ARRANGEMENTS FOR PLUGGABLE OPTICAL SUBASSEMBLY MODULES

    公开(公告)号:US20220091350A1

    公开(公告)日:2022-03-24

    申请号:US17031362

    申请日:2020-09-24

    Abstract: In general, the present disclosure is directed to locking arrangements for use with optical subassembly housings, such as small form-factor pluggable (SFFP) housings, that include a handle member configured to rotate about the housing to allow a user to select a target/desired orientation. Preferably, the locking arrangement couples to a pluggable housing that is configured to removably couple into a receptacle of an optical transceiver cage or other suitable enclosure. The locking arrangement further includes a handle member rotatably coupled to the pluggable housing, the handle member being configured to allow the pluggable housing to releasably lock within the receptacle. The handle member is also preferably configured to maintain a user-selected orientation such that the handle member remains at a given angle relative to the pluggable housing in the absence of a user-supplied force.

    PRINTED CIRCUIT BOARD ASSEMBLY (PCBA) WITH INTEGRATED MOUNTING STRUCTURE TO ALIGN AND COUPLE TO TRANSMITTER OPTICAL ASSEMBLY (TOSA) MODULES

    公开(公告)号:US20200218018A1

    公开(公告)日:2020-07-09

    申请号:US16239197

    申请日:2019-01-03

    Abstract: The present disclosure is generally directed to an optical transceiver module that includes a mounting section for aligning and coupling to associated TOSA modules. In particular, an embodiment of the present disclosure includes TOSA and ROSA components disposed on a printed circuit board assembly (PCBA). The PCBA includes a plurality of grooves at a optical coupling end to provide a TOSA mounting section. Each of the grooves provides at least one mating surface to receive and couple to an associated TOSA module. Opposite the optical coupling end, the PCBA includes an electric coupling section for coupling to, for example, a transmit (RX) circuit that provides one or more electrical signals to drive TOSA modules coupled to the TOSA mounting section.

    LOCKING ARRANGEMENTS FOR PLUGGABLE OPTICAL SUBASSEMBLY MODULES

    公开(公告)号:US20220091345A1

    公开(公告)日:2022-03-24

    申请号:US17031392

    申请日:2020-09-24

    Abstract: In general, the present disclosure is directed to locking arrangements for use with optical subassembly housings, such as small form-factor pluggable (SFFP) housings, that include a handle member configured to rotate about the housing to allow a user to select a target/desired orientation. Preferably, the locking arrangement couples to a pluggable housing that is configured to removably couple into a receptacle of an optical transceiver cage or other suitable enclosure. The locking arrangement further includes a handle member rotatably coupled to the pluggable housing, the handle member being configured to allow the pluggable housing to releasably lock within the receptacle. The handle member is also preferably configured to maintain a user-selected orientation such that the handle member remains at a given angle relative to the pluggable housing in the absence of a user-supplied force.

    HEATSINK WITH GRAPHENE COATING AND AN OPTICAL TRANSMITTER OR TRANSCEIVER IMPLEMENTING SAME

    公开(公告)号:US20210157074A1

    公开(公告)日:2021-05-27

    申请号:US16693361

    申请日:2019-11-24

    Abstract: The present disclosure is generally directed to a housing for use with optical transceivers or transmitters that includes integrated heatsinks with a graphene coating to increase thermal dissipation during operation. In more detail, an embodiment of the present disclosures includes a housing that defines at least first and second sidewalls and a cavity disposed therebetween. The first and/or second sidewalls can include integrated heatsinks to dissipate heat generated by optical components, e.g., laser diodes, laser diode drivers, within the cavity of the housing. The integrated heatsinks can include at least one layer of graphene disposed thereon to increase thermal performance, and in particular, to decrease thermal resistance of the heatsink and promote heat dissipation.

    OPTICAL DEMULTIPLEXER WITH TRUNCATED PROFILE AND AN OPTICAL TRANSCEIVER MODULE IMPLEMENTING SAME

    公开(公告)号:US20210157058A1

    公开(公告)日:2021-05-27

    申请号:US16693364

    申请日:2019-11-24

    Abstract: The present disclosure is generally directed to an optical demultiplexer for use in an optical transceiver module having a truncated profile/shape to increase tolerance and accommodate adjacent optical components. In more detail, the optical demultiplexer comprises a body with at least one truncated corner at the input end. The at least one truncated corner allows the optical demultiplexer to be disposed/mounted, e.g., directly, on a densely populated transceiver substrate, e.g., a printed circuit board (PBC), and provide additional tolerance/space for mounting of circuitry and/or components within the region that would normally be occupied by corner(s) of the optical demultiplexer body. The at least one truncated corner may be introduced in a post-production step, e.g., via cut & polishing, or introduced during formation of the optical demultiplexer using, for instance, photolithography techniques.

    TRANSMITTER OPTICAL SUBASSEMBLY (TOSA) WITH LASER DIODE DRIVER (LDD) CIRCUITRY MOUNTED TO FEEDTHROUGH OF TOSA HOUSING

    公开(公告)号:US20200285007A1

    公开(公告)日:2020-09-10

    申请号:US16664202

    申请日:2019-10-25

    Abstract: The present disclosure is generally directed to a multi-channel TOSA arrangement with a housing that utilizes a feedthrough device with at least one integrated mounting surface to reduce the overall dimensions of the housing. The housing includes a plurality of sidewalls that define a hermetically-sealed cavity therebetween. The feedthrough device includes a first end disposed in the hermetically-sealed cavity of the housing and a second end extending from the cavity away from the housing. The feedthrough device provides the at least one integrated mounting surface proximate the first end within the hermetically-sealed cavity. At least a first laser diode driver (LDD) chip mounts to the at least one integrated mounting surface of the feedthrough device. A plurality of laser arrangements are also disposed in the hermetically-sealed cavity proximate the first LDD chip and mount to, for instance, a LD submount supported by a thermoelectric cooler.

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