PERFORMANCE HETEROGENEOUS LASERS AND ACTIVE COMPONENTS

    公开(公告)号:US20230352908A1

    公开(公告)日:2023-11-02

    申请号:US17732348

    申请日:2022-04-28

    摘要: A device comprises first, second and third elements fabricated on a common substrate. The first element comprises an active waveguide structure supporting a first optical mode and at least one of the modal gain control structures. The second element comprises a passive waveguide structure supporting a second optical mode. The third element, at least partly butt-coupled to the first element, comprises an intermediate waveguide structure supporting intermediate optical modes. If the first optical mode differs from the second optical mode by more than a predetermined amount, a tapered waveguide structure in at least one of the second and third elements facilitate efficient adiabatic transformation between the second optical mode and one of the intermediate optical modes. No adiabatic transformation occurs between any of the intermediate optical modes and the first optical mode. Mutual alignments of the first, second and third elements are defined using lithographic alignment marks.

    HETEROGENEOUSLY INTEGRATED SENSOR
    2.
    发明公开

    公开(公告)号:US20240192441A1

    公开(公告)日:2024-06-13

    申请号:US18076819

    申请日:2022-12-07

    IPC分类号: G02B6/122 G02B6/12

    摘要: A device comprises at least one of the first, second and third elements fabricated on a common substrate. At least one of the first elements comprises an active waveguide structure supporting an active optical mode. At least one of the second elements comprises a passive waveguide structure supporting a passive optical mode. At least one of the third elements, at least partly butt-coupled to at least one of the first elements, comprises an intermediate waveguide structure supporting intermediate optical modes. At least one of the second elements comprises at least one input/output structure configured to interact with an analyte region and at least one of the first elements comprises an optical source. Mutual alignments of the elements are defined using lithographic alignment marks.

    HETEROGENEOUS GAN LASERS AND ACTIVE COMPONENTS

    公开(公告)号:US20230361534A1

    公开(公告)日:2023-11-09

    申请号:US17738608

    申请日:2022-05-06

    IPC分类号: H01S5/20 H01S5/32 H01S5/323

    摘要: A device comprises first, second, third and fourth elements fabricated on a common substrate. The first element comprises an active waveguide structure supporting a first optical mode, the second element comprises a passive waveguide structure supporting a second optical mode, the third element, at least partly butt-coupled to the first element, comprises an intermediate waveguide structure supporting intermediate optical modes, and a fourth element comprising TCO material that is attached to the first element. If the first optical mode differs from the second optical mode by more than a predetermined amount, a tapered waveguide structure in at least one of the second and third elements facilitates efficient adiabatic transformation. No adiabatic transformation occurs between any of the intermediate optical modes and the first optical mode. Mutual alignments of the first, the second, the third, and the fourth elements are defined using lithographic alignment marks.

    Heterogeneous photonic integrated circuits with doped waveguides

    公开(公告)号:US11808997B1

    公开(公告)日:2023-11-07

    申请号:US17947714

    申请日:2022-09-19

    IPC分类号: G02B6/42 G02B6/35

    摘要: A device comprises first, second and third elements fabricated on a common substrate. The first element comprises an active waveguide structure comprising electrically pumped optical source supporting a first optical mode. The second element comprises a passive waveguide structure supporting a second optical mode in at least part of the second element. The third element, at least partly butt-coupled to the first element, comprises an intermediate waveguide structure supporting intermediate optical modes. At least part of the second element supports at least one optical mode that interacts with rare-earth dopants. A tapered waveguide structure in at least one of the second and the third elements facilitates efficient adiabatic transformation between the second optical mode and at least one of the intermediate optical modes. No adiabatic transformation occurs between any of the intermediate optical modes and the first optical mode. Mutual alignments of the elements are defined using lithographic alignment marks.

    Integrated GaAs active devices with improved optical coupling to dielectric waveguides

    公开(公告)号:US11719883B1

    公开(公告)日:2023-08-08

    申请号:US17675328

    申请日:2022-02-18

    IPC分类号: G02B6/122 G02B6/30

    CPC分类号: G02B6/1228 G02B6/305

    摘要: A device includes three elements fabricated on a common substrate. The first element includes an active waveguide structure having at least three sub-layers supporting a first optical mode. The second element has a passive waveguide structure supporting a second optical mode, and the third element, butt-coupled to the first element, has an intermediate waveguide structure supporting intermediate optical modes. One sub-layer in the active waveguide structure includes an n-contact layer, another sub-layer includes a p-contact layer, and a third sub-layer includes an active region. A tapered waveguide structure in at least one of the second and third elements facilitates efficient adiabatic transformation between the second optical mode and an intermediate optical mode. No adiabatic transformation occurs between that intermediate optical mode and the first optical mode. Mutual alignments of the three elements are defined using lithographic alignment marks that facilitate precise alignment between layers formed fabrication of the elements.

    HETEROGENEOUSLY INTEGRATED ILLUMINATOR
    6.
    发明公开

    公开(公告)号:US20240159960A1

    公开(公告)日:2024-05-16

    申请号:US17988636

    申请日:2022-11-16

    摘要: A device comprises at least one of first, second and third elements fabricated on a common substrate. At least one of the first elements comprises an active waveguide structure and optical sources supporting an active optical mode and defined by at least one etch after attachment to the common substrate. At least one of the second elements comprises a passive waveguide structure supporting a passive optical mode, also comprising at least one of the one splitter structure and two emitter structures. At least one of the third elements, at least partly butt-coupled to at least one of the first elements, comprises an intermediate waveguide structure supporting intermediate optical modes. Mutual alignments of the first, second and third elements are defined using lithographic alignment marks that facilitate precise alignment between layers formed during processing steps of fabricating the first, the second and the third elements on a common substrate.

    Heterogeneously integrated photonic platform with non-linear frequency conversion element

    公开(公告)号:US11971577B2

    公开(公告)日:2024-04-30

    申请号:US17838325

    申请日:2022-06-13

    摘要: A device comprises first, second and third elements fabricated on a common substrate. The first element comprises an active waveguide structure comprising: a first portion supporting a first optical mode. The second element comprises a passive waveguide structure supporting a second optical mode. The third element, at least partly butt-coupled to the second portion, comprises an intermediate waveguide structure supporting intermediate optical modes. At least part of the second element is non-linear, supporting frequency conversion. A tapered waveguide structure in at least one of the second and third elements facilitates efficient adiabatic transformation between the first optical mode and one intermediate optical mode. No adiabatic transformation occurs between any intermediate optical mode and the first optical mode. Mutual alignments of the elements are defined using lithographic alignment marks.