公开(公告)号：US20220120966A1

公开(公告)日：2022-04-21

申请号：US17076358

申请日：2020-10-21

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yangyang Liu ,  Tymon Barwicz

IPC: G02B6/126 ,  G02B6/122 ,  G02B6/13

Abstract: Structures for managing light polarization on a photonics chip and methods of forming a structure for managing light polarization on a photonics chip. A single-mode waveguiding structure is formed that includes a first waveguide core region and a second waveguide core region positioned above the first waveguide core region. The second waveguide core region includes a first section, a second section connected to the first section, and a third section connected to the second section. The second section has a first width at an intersection with the first section and a second width at an intersection with the third section. The second width is greater than the first width. The first and second waveguide core regions contain materials of different composition.

公开(公告)号：US11609379B2

公开(公告)日：2023-03-21

申请号：US17076358

申请日：2020-10-21

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yangyang Liu ,  Tymon Barwicz

IPC: G02B6/126 ,  G02B6/13 ,  G02B6/122

Abstract: Structures for managing light polarization on a photonics chip and methods of forming a structure for managing light polarization on a photonics chip. A single-mode waveguiding structure is formed that includes a first waveguide core region and a second waveguide core region positioned above the first waveguide core region. The second waveguide core region includes a first section, a second section connected to the first section, and a third section connected to the second section. The second section has a first width at an intersection with the first section and a second width at an intersection with the third section. The second width is greater than the first width. The first and second waveguide core regions contain materials of different composition.

公开(公告)号：US11422305B2

公开(公告)日：2022-08-23

申请号：US17109559

申请日：2020-12-02

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yangyang Liu ,  Tymon Barwicz

IPC: G02B6/125 ,  G02B6/13 ,  G02B6/126

Abstract: Structures for polarization filtering and methods of forming a structure for polarization filtering. A waveguiding structure has a first waveguide core region including a first plurality of bends, a second waveguide core region including a second plurality of bends laterally spaced from the first plurality of bends by a gap, and a third waveguide core region including a third plurality of bends positioned beneath the gap. The first waveguide core region and the second waveguide core region contain a first material. The third waveguide core region contains a second material that differs in composition from the first material.

公开(公告)号：US20220171126A1

公开(公告)日：2022-06-02

申请号：US17109559

申请日：2020-12-02

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yangyang Liu ,  Tymon Barwicz

IPC: G02B6/125 ,  G02B6/126 ,  G02B6/13

Abstract: Structures for polarization filtering and methods of forming a structure for polarization filtering. A waveguiding structure has a first waveguide core region including a first plurality of bends, a second waveguide core region including a second plurality of bends laterally spaced from the first plurality of bends by a gap, and a third waveguide core region including a third plurality of bends positioned beneath the gap. The first waveguide core region and the second waveguide core region contain a first material. The third waveguide core region contains a second material that differs in composition from the first material.