公开(公告)号：US20220413217A1

公开(公告)日：2022-12-29

申请号：US17358255

申请日：2021-06-25

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Subramanian Krishnamurthy ,  Yusheng Bian

IPC: G02B6/122 ,  G02B6/13

Abstract: Structures for an optical power splitter and methods of forming a structure for an optical power splitter. The structure includes a first waveguide core having a first arm, a second waveguide core including a second arm, and a third waveguide core having a third arm laterally positioned between the first arm and the second arm. The third arm has a longitudinal axis. The first arm is longitudinally offset from the third arm parallel to the longitudinal axis such that the third arm and the first arm are laterally adjacent over a first overlap distance. The second arm is longitudinally offset from the third arm parallel to the longitudinal axis such that the third arm and the second arm are laterally adjacent over a second overlap distance. The first overlap distance is greater than the second overlap distance to provide an overlap offset.

公开(公告)号：US11555963B1

公开(公告)日：2023-01-17

申请号：US17358255

申请日：2021-06-25

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Subramanian Krishnamurthy ,  Yusheng Bian

IPC: G02B6/125 ,  G02B6/13 ,  G02B6/122 ,  G02B6/12

Abstract: Structures for an optical power splitter and methods of forming a structure for an optical power splitter. The structure includes a first waveguide core having a first arm, a second waveguide core including a second arm, and a third waveguide core having a third arm laterally positioned between the first arm and the second arm. The third arm has a longitudinal axis. The first arm is longitudinally offset from the third arm parallel to the longitudinal axis such that the third arm and the first arm are laterally adjacent over a first overlap distance. The second arm is longitudinally offset from the third arm parallel to the longitudinal axis such that the third arm and the second arm are laterally adjacent over a second overlap distance. The first overlap distance is greater than the second overlap distance to provide an overlap offset.

公开(公告)号：US20250076574A1

公开(公告)日：2025-03-06

申请号：US18242364

申请日：2023-09-05

Applicant: GlobalFoundries U.S. Inc.

Inventor： Md Nabil Shehtab Dhrubo ,  Andreas D. Stricker ,  Alexander Derrickson ,  Subramanian Krishnamurthy ,  Yusheng Bian ,  Judson R. Holt

IPC: G02B6/122 ,  G02B6/13

Abstract: Photonics chip structures including a reflector and methods of forming such structures. The photonics chip structure comprises a first waveguide core, a second waveguide core adjacent to the first waveguide core, and a reflector including a plurality of metal contacts over a portion of the first waveguide core. The second waveguide core is configured to couple light to the first waveguide core, and the metal contacts are configured to reflect the light.