MEMS STEERING MIRRORS FOR APPLICATIONS IN PHOTONIC INTEGRATED CIRCUITS

    公开(公告)号:US20190049677A1

    公开(公告)日:2019-02-14

    申请号:US16164394

    申请日:2018-10-18

    Applicant: Google LLC

    Abstract: An integrated optical assembly includes an optics mount. The optics mount has disposed thereon a light source for providing a beam of light and a lens configured to focus the beam of light. The integrated optical assembly includes a photonic integrated circuit (PIC) mechanically coupled to the optics mount. The PIC has disposed thereon a grating coupler for receiving the beam of light and coupling the beam of light into a waveguide. The integrated optical assembly includes a microelectromechanical systems (MEMS) mirror configured to receive the beam of light from the lens and redirect it towards the grating coupler. A position of a reflective portion of the MEMS mirror is adjustable to affect an angle of incidence of the beam of light on the grating coupler.

    Inner and outer collimator elements for an optical circuit switch

    公开(公告)号:US10317626B2

    公开(公告)日:2019-06-11

    申请号:US15788153

    申请日:2017-10-19

    Applicant: Google LLC

    Abstract: An optical circuit switch includes a fiber hole array, a plurality of internal optical fibers, a collimating lens array, a MEMS mirror array, and a reflective surface. The fiber hole array includes an array of receptacles shaped to accept respective internal optical fibers. The collimating lens array is positioned adjacent to the fiber hole array. Each collimator of the collimating lens array optically couples light into or out of a corresponding one of the internal optical fibers. The fiber hole array, the collimator, the MEMS mirror array and the reflective surface are positioned relative to one another such that light exiting each of the internal optical fibers passes through its corresponding collimator and is redirected by a first mirror within the MEMS array towards the reflective surface, which directs the light back towards a second mirror of the MEMS mirror array, which in turn redirects the light towards a second internal optical fiber.

    INNER AND OUTER COLLIMATOR ELEMENTS FOR AN OPTICAL CIRCUIT SWITCH

    公开(公告)号:US20180364419A1

    公开(公告)日:2018-12-20

    申请号:US15788153

    申请日:2017-10-19

    Applicant: Google LLC

    Abstract: An optical circuit switch includes a fiber hole array, a plurality of internal optical fibers, a collimating lens array, a MEMS mirror array, and a reflective surface. The fiber hole array includes an array of receptacles shaped to accept respective internal optical fibers. The collimating lens array is positioned adjacent to the fiber hole array. Each collimator of the collimating lens array optically couples light into or out of a corresponding one of the internal optical fibers. The fiber hole array, the collimator, the MEMS mirror array and the reflective surface are positioned relative to one another such that light exiting each of the internal optical fibers passes through its corresponding collimator and is redirected by a first mirror within the MEMS array towards the reflective surface, which directs the light back towards a second mirror of the MEMS mirror array, which in turn redirects the light towards a second internal optical fiber.

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