Coupled-cavity VCSELs for enhanced modulation bandwidth

    公开(公告)号:US11588298B2

    公开(公告)日:2023-02-21

    申请号:US16909991

    申请日:2020-06-23

    Abstract: Coupled-cavity vertical cavity surface emitting lasers (VCSELs) are provided by the present disclosure. The coupled-cavity VCSEL can comprise a VCSEL having a first mirror, a gain medium disposed above the first mirror, and a second mirror disposed above the gain medium, wherein a first cavity is formed by the first mirror and the second mirror. A second cavity is optically coupled to the VCSEL and configured to reflect light emitted from the VCSEL back into the first cavity of the VCSEL. In some embodiments, the second cavity can be an external cavity optically coupled to the VCSEL through a coupling component. In some embodiments, the second cavity can be integrated with the VCSEL to form a monolithic coupled-cavity VCSEL. A feedback circuit can control operation of the coupled-cavity VCSEL so the output comprises a target high frequency signal.

    SOLDER-ALIGNED OPTICAL SOCKET WITH INTERPOSER REFERENCE AND METHODS OF ASSEMBLY THEREOF

    公开(公告)号:US20210341690A1

    公开(公告)日:2021-11-04

    申请号:US16863610

    申请日:2020-04-30

    Abstract: Optoelectronic systems and methods of assembly thereof are described herein according to the present disclosure. An example of an optoelectronic described herein includes a substrate and an interposer coupled to the substrate including one or more optical emitters and one or more photodetectors to be mounted thereto. The interposer is fabricated with one or more mechanical datums located on the interposer with respect to flip chip pads to position and couple the optical emitters and photodetectors to the interposer. The optoelectronic system also includes an optical connector and an optical socket that includes one or more mechanical datums corresponding to the mechanical datums of the interposer. The optical socket is configured to align the optical connector with the optical emitters and the photodetectors when the optical socket is coupled to the substrate and the optical connector is received within the optical socket. The mechanical datums of the optical socket contact respective mechanical datums of the interposer when the optical socket is coupled to the substrate.

    Optoelectronic device with a support member

    公开(公告)号:US10795103B2

    公开(公告)日:2020-10-06

    申请号:US16175652

    申请日:2018-10-30

    Abstract: Optoelectronic devices with a support member and methods of manufacturing or assembling the same are provided. An example of an optoelectronic device according to the present disclosure includes a substrate and an optical component and an electronic component disposed thereon or therein. The optoelectronic device further includes a ferrule coupled to the optical fiber and an optical socket receiving the ferrule therein. The optoelectronic device includes a support member disposed between the substrate and the optical socket such that the optical socket is spaced from the substrate by the support member.

    Data center transmission systems
    16.
    发明授权

    公开(公告)号:US10700494B2

    公开(公告)日:2020-06-30

    申请号:US16082270

    申请日:2016-04-01

    Abstract: In the examples provided herein, a data center transmission system includes a VCSEL (vertical-cavity surface-emitting laser) that lases in a single spatial mode with a side mode suppression ratio of at least 25 dB, where the VCSEL is formed on a substrate and lases at a wavelength transparent to the substrate, and further where an output of the VCSEL exits through the substrate. Also, the VCSEL is directly modulated. The system further includes an optical fiber having a first end to receive the output of the VCSEL for propagation along the optical fiber. The optical fiber supports a single spatial mode without supporting higher order spatial modes over a range of wavelengths between 1260 nm and 1360 nm. The system also includes a receiver to receive the directly modulated output of the VCSEL after propagation through the optical fiber.

    Polarization diversity optical interface assembly

    公开(公告)号:US10698163B2

    公开(公告)日:2020-06-30

    申请号:US16175578

    申请日:2018-10-30

    Abstract: Examples herein relate to polarization diversity optical interface assemblies including a single mode optical fiber and first and second grating couplers disposed on a substrate. The first and second grating couplers are coupled to first and second waveguides, respectively. The assemblies further includes an optical connector to couple light between the single mode optical fiber and each of the first and second grating couplers. The optical connector includes a ferrule and a walk-off crystal. The ferrule is coupled to a portion of the single mode optical fiber. The walk-off crystal is configured to spatially separate the light into first and second orthogonal polarization modes prior to passing through the respective first and second grating couplers and/or combine the first and second polarization modes of the light prior to passing through the single mode optical fiber.

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