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公开(公告)号：US20230361534A1
公开(公告)日：2023-11-09
申请号：US17738608
申请日：2022-05-06
发明人： Chong ZHANG , Minh TRAN , Tin KOMLJENOVIC
CPC分类号： H01S5/2031 , H01S5/3224 , 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.
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公开(公告)号：US20230352908A1
公开(公告)日：2023-11-02
申请号：US17732348
申请日：2022-04-28
发明人： Tin KOMLJENOVIC , Chong ZHANG , Minh TRAN
CPC分类号： H01S5/0651 , H01S5/026 , H01S5/3412 , H01S5/028
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.
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