FIBER HOLDER FOR USE WITH OPTICAL SUBASSEMBLY MODULES

    公开(公告)号:US20220283390A1

    公开(公告)日:2022-09-08

    申请号:US17192062

    申请日:2021-03-04

    Abstract: An optical fiber holder is disclosed herein that includes at least one confinement slot for routing intermediate optical fibers within a housing of an optical assembly module, and preferably, a plurality of confinement slots for maintaining a target/nominal fiber bending radius for one or more intermediate optical fibers within the housing. Preferably, the optical fiber holder is disposed within the housing of an optical subassembly between an optical component, e.g., a TOSA arrangement and/or ROSA arrangement, and optical coupling receptacles, e.g., LC coupling receptacles, for optically coupling with external fibers for sending and/or receiving optical signals.

    MONITOR PHOTODIODE (MPD) SUBMOUNT FOR VERTICAL MOUNTING AND ALIGNMENT OF MONITORING PHOTODIODES

    公开(公告)号:US20210211198A1

    公开(公告)日:2021-07-08

    申请号:US16737414

    申请日:2020-01-08

    Abstract: The present disclosure is generally directed to a monitor photodiode (MPD) submount for use in optical transceivers that includes a body with a conductive trace pattern disposed on multiple surfaces of the same to allow for vertical mounting of an associated MPD and simplified electrical interconnection with TOSA circuitry without the necessity of electrical interconnection. The MPD submount includes a body defined by a plurality of sidewalls. At least one surface of the body provides a mounting surface for coupling to and supporting an MPD. The MPD submount further includes a conductive trace pattern that provides at least one conductive path that is disposed on the mounting surface and on at least one adjoining sidewall. The portion of the at least one conductive path disposed on the adjoining sidewall extends substantially transverse relative to the surface defining the transceiver/transmitter substrate when the MPD submount is coupled to the same.

    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 WITH HERMETICALLY-SEALED LIGHT ENGINE AND EXTERNAL ARRAYED WAVEGUIDE GRATING

    公开(公告)号:US20200073052A1

    公开(公告)日:2020-03-05

    申请号:US16116087

    申请日:2018-08-29

    Abstract: In general, a TOSA consistent with the present disclosure includes a light driving circuit coupled to a hermetically-sealed light engine. The hermetically-sealed light engine includes a housing defined by a plurality of sidewalls. The housing defines a cavity that is hermetically-sealed to prevent introduction of contaminants that would otherwise reduce optical power. The hermetically-sealed light engine optically couples to an external arrayed waveguide grating (AWG), or other multiplexing device, by way of an optical receptacle. The optical receptacle can include a waveguide implemented external to the hermetically-sealed cavity and can include, for instance, an optical isolator, fiber stub, and fiber ferrule section. Thus, the external AWG and associated external optical coupling components advantageously allow for the hermetically-sealed light engine to have a cavity with dimensions relatively smaller than other approaches that dispose an AWG and associated components within a hermetically-sealed cavity.

    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.

    TECHNIQUES FOR ATTACHMENT AND ALIGNMENT OF OPTICAL COMPONENTS ON A THERMOELECTRIC COOLER (TEC) AND AN OPTICAL SUBASSEMBLY IMPLEMENTING SAME

    公开(公告)号:US20210013696A1

    公开(公告)日:2021-01-14

    申请号:US16506587

    申请日:2019-07-09

    Abstract: In general the present disclosure is directed to a temperature control device, e.g., a TEC, that includes a top plate with at least first and second contact pads to allow for a soldering process to attach optical components to the first contact pad without causing one or more layers of the second contact pad to reflow and solidify with an uneven mounting surface. Thus, optical components such as a focus lens can be mounted to the second contact pad via, for instance, thermal epoxy. This avoids the necessity of a submount to protect the focus lens from the relatively high heat introduced during a soldering process as well as maintain the flatness of the second contact pad within tolerance so that the mounted focus lens optically aligns by virtue of its physical location/orientation with other associated optical components coupled to the first contact pad, e.g., a laser diode.

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