SYSTEMS AND METHODS FOR INTEGRATION OF THIN FILM OPTICAL MATERIALS IN SILICON PHOTONICS

    公开(公告)号:US20240255696A1

    公开(公告)日:2024-08-01

    申请号:US18633331

    申请日:2024-04-11

    申请人: Raytheon Company

    发明人: Ping Piu KUO

    IPC分类号: G02B6/12 G02B6/132

    摘要: A method of fabricating a photonics stack includes providing a silicon photonics structure having a silicon substrate, an oxide layer, and an epitaxial silicon layer with one or more active devices. The method also includes providing an interposer structure and attaching the silicon photonics structure and the interposer structure. The method further includes removing the silicon substrate from the silicon photonics structure and removing at least a portion of the oxide layer from the silicon photonics structure. In addition, the method includes disposing a thin film lithium niobate coupon on or within the silicon photonics structure and encapsulating the thin film lithium niobate coupon with an optical material.

    OPTICAL MODE COUPLER IN INTEGRATED PHOTONICS

    公开(公告)号:US20240210620A1

    公开(公告)日:2024-06-27

    申请号:US18087792

    申请日:2022-12-22

    IPC分类号: G02B6/122

    CPC分类号: G02B6/1228 G02B2006/1204

    摘要: An optical device comprises a photonic integrated circuit having an optical mode coupler. The optical mode coupler optically couples a first planar optical waveguide having a first optical core at one horizontal plane to a second planar optical waveguide having a second optical core at a different second horizontal plane. The optical mode coupler comprises two or more intermediate optical layers stacked vertically between the horizontal planes of the optical cores, and intermediate optical layer comprises one or more optical rails. The optical mode coupler causes light received from the first planar optical waveguide to excite an optical mode and guide the light of the optical mode such that the optical mode substantially overlaps the first planar optical waveguide and the optical rails of at least two of the intermediate optical layers in a vertical cross-section of the photonic integrated circuit.