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    DIFFERENTIAL DRIVING OF LITHIUM-CONTAINING ELECTRO-OPTIC DEVICES UTILIZING ENGINEERED ELECTRODES
    1.
    发明公开
    DIFFERENTIAL DRIVING OF LITHIUM-CONTAINING ELECTRO-OPTIC DEVICES UTILIZING ENGINEERED ELECTRODES 审中-公开

    公开(公告)号：US20240184149A1

    公开(公告)日：2024-06-06

    申请号：US18532941

    申请日：2023-12-07

    Applicant: HyperLight Corporation

    Inventor： Jeffrey Cole Holzgrafe ,  Christian Reimer ,  Mian Zhang ,  Prashanta Kharel ,  Kevin Luke ,  Lingyan He

    IPC: G02F1/035

    CPC classification number: G02F1/0356 ,  G02F2201/063 ,  G02F2201/122 ,  G02F2202/20

    Abstract: An optical modulator includes optical material(s) and first and second differential electrode pairs. The optical material(s) exhibit an electro-optic effect and include lithium. The optical material(s) include first and second waveguides and first and second slab portions adjoining the first and second waveguides. The first differential electrode pair has electrodes arranged on opposing sides of the first waveguide. The second differential electrode pair has electrodes arranged on opposing sides of the second waveguide. The negative electrodes are arranged on distal sides of the waveguide relative to the other waveguide. The positive electrodes are arranged on proximal sides of waveguide relative to the other waveguide. The first and second waveguides, the first and second slab portions, and the first and second differential electrode pairs reside on a substrate structure. No portion of the first slab portion is between the first or second differential electrode pair and the substrate structure.

    ELECTRO-OPTIC DEVICES HAVING CLOSELY SPACED ENGINEERED ELECTRODES
    3.
    发明公开
    ELECTRO-OPTIC DEVICES HAVING CLOSELY SPACED ENGINEERED ELECTRODES 审中-公开

    公开(公告)号：US20230251511A1

    公开(公告)日：2023-08-10

    申请号：US18102604

    申请日：2023-01-27

    Applicant: HyperLight Corporation

    Inventor： Prashanta Kharel ,  Mian Zhang ,  Christian Reimer ,  Kevin Luke ,  Lingyan He ,  Jeffrey Cole Holzgrafe

    IPC: G02F1/035

    CPC classification number: G02F1/0356 ,  G02F2201/063 ,  G02F2202/20 ,  G02F2201/122

    Abstract: An optical device is described. The optical device includes a waveguide, a first engineered electrode, and a second engineered electrode. The waveguide includes at optical material(s) having an electro-optic effect. The optical material(s) include lithium. A portion of the waveguide has a waveguide width. The first engineered electrode includes a first channel region and first extensions protruding from the first channel region. The first extensions are closer to the portion of the waveguide than the first channel region is. The second engineered electrode includes a second channel region and second extensions protruding from the second channel region. The second extensions are closer to the portion of the waveguide than the second channel region is. A first extension of the first extensions is a distance from a second extension of the second \extensions. The distance is less than the waveguide width.

    Buried back reflector
    4.
    发明授权
    Buried back reflector 有权

    公开(公告)号：US12001120B1

    公开(公告)日：2024-06-04

    申请号：US17556323

    申请日：2021-12-20

    Applicant: HyperLight Corporation

    Inventor： Mian Zhang ,  Kevin Luke ,  Prashanta Kharel ,  Christian Reimer ,  Lingyan He

    IPC: G02F1/313

    CPC classification number: G02F1/313 ,  G02F2201/302 ,  G02F2201/34 ,  G02F2202/101 ,  G02F2202/20

    Abstract: An optical device including a plurality of electrodes, an electro-optic component, an optical grating, and a buried back reflector is described. The electro-optic component includes at least one optical material exhibiting an electro-optic effect. The optical grating is optically coupled with the electro-optic component. In some embodiments, the optical grating includes a vertical optical grating coupler. The buried back reflector is optically coupled with the optical grating. The buried back reflector is configured to increase a coupling efficiency of the optical grating to an out-of-plane optical mode and configured to reduce a performance perturbation to the plurality of electrodes. The buried back reflector may include a metal layer having a thickness of at least thirty nanometers and not more than five hundred nanometers.

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