LIGHT POLARISATION CONVERTER AND METHOD OF MANUFACTURE

    公开(公告)号:WO2023285403A1

    公开(公告)日:2023-01-19

    申请号:PCT/EP2022/069358

    申请日:2022-07-11

    摘要: A light polarisation converter for a photonic integrated circuit, comprising: a substrate and a waveguide. The substrate comprises a first surface and a second surface. The waveguide comprises a first waveguide portion in contact with the first surface, and a second waveguide portion in contact with the second surface. The second surface is offset from the first surface along a first axis and a second axis. Each axis is perpendicular to a light propagation direction for converting polarisation of the light. The second waveguide portion is offset from the first waveguide portion.

    WAVEGUIDE STRUCTURE AND METHOD OF MANUFACTURE

    公开(公告)号:WO2022144215A1

    公开(公告)日:2022-07-07

    申请号:PCT/EP2021/086854

    申请日:2021-12-20

    IPC分类号: G02F1/00 H01S5/026 G02B6/12

    摘要: A waveguide structure (100) comprising: a substrate (102); a waveguide layer (104) on the substrate (102); a cladding layer (106) in contact with a first side of the waveguide layer (104), the waveguide layer (104) between the cladding layer (106) and the substrate (102); and a first waveguide modifier layer (110) comprising a first material for modifying a waveguide function of the waveguide layer (104), the first waveguide modifier layer (110) in contact with the cladding layer (106) and having a width (W1) along a first axis less than a width (W2) of the cladding layer (106) parallel to the first axis (114), the first axis perpendicular to a second axis (202) corresponding with a light propagation direction within the waveguide layer (104). There is a method of manufacturing a waveguide structure (100).