MULTIPLE OPTOELECTRONIC DEVICES WITH THERMAL COMPENSATION

    公开(公告)号:US20230387654A1

    公开(公告)日:2023-11-30

    申请号:US18361421

    申请日:2023-07-28

    摘要: An optical apparatus comprising at least two optoelectronic devices fabricated on the same substrate and in thermal communication with each other. A first optoelectronic device is configured to generate optical signals and provide them to an optical system via an optical output port. A second optoelectronic device is configured to provide heat compensation for the first optoelectronic device. An electrical circuitry provides first electrical signals to the first optoelectronic device and second electrical signals to the second optoelectronic device. The electrical circuitry is configured to adjust at least the second electrical signals to controllably adjust a temperature of the first optoelectronic device.

    OPTICAL DEVICE WITH COATING FOR OPERATION IN MULTIPLE ENVIRONMENTS

    公开(公告)号:US20230026282A1

    公开(公告)日:2023-01-26

    申请号:US17025962

    申请日:2020-09-18

    IPC分类号: H01S5/028 H01S5/026

    摘要: An optical system comprising an optoelectronic device having a facet and a coating on the facet. The facet is configured to be in optical communication with at least a first optical medium during a first time period and a second optical medium during a second time period. The first optical medium has a first refractive index and the second optical medium has a second refractive index different from the first refractive index. The coating is configured to provide a first reflectance during the first time period for optical signals in a predetermined wavelength range and to provide a second reflectance during the second time period for optical signals in the predetermined wavelength range wherein the second reflectance is equal to the first reflectance within a negligible margin for optical signals having at least one wavelength in the predetermined wavelength range.

    SYSTEM AND METHOD FOR EXTERNAL WAVELENGTH CONTROL OF OPTICAL MODULATORS

    公开(公告)号:US20220311520A1

    公开(公告)日:2022-09-29

    申请号:US17656193

    申请日:2022-03-23

    IPC分类号: H04B10/572 H04B10/50

    摘要: Various designs of optical interconnects and optical links may comprise one or more optically resonant electro-optical modulators used to modulate one or more optical carriers received from one or more lasers using one or more electronic input signals. A wavelength of each laser may be dynamically tuned using a control signal generated by a feedback control system to stabilize the electro-optical modulation of the optical carriers.

    SYSTEMS AND METHODS FOR WAVELENGTH MONITORING

    公开(公告)号:US20200183195A1

    公开(公告)日:2020-06-11

    申请号:US16213917

    申请日:2018-12-07

    IPC分类号: G02F1/01 G02F1/21

    摘要: Devices configured to determine wavelength of light, monitoring wavelength or provide a reference wavelength are disclosed. The devices can comprise a plurality of etalons. The plurality of peaks in the transmission or reflection spectrum of different etalons of the plurality of etalons can be phase shifted with respect to each other in wavelength space. The plurality of etalons can comprise materials with different group index of refraction or materials with different thermal responses. Phase shift of the plurality of peaks in the transmission or reflection spectrum of different etalons in wavelength space can be accomplished by changing the relative temperature between the different etalons.