公开(公告)号：US11662523B2

公开(公告)日：2023-05-30

申请号：US17151955

申请日：2021-01-19

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Roderick A. Augur ,  Kenneth J. Giewont ,  Karen Nummy

IPC: G02B6/30 ,  G02B6/42 ,  F21V8/00 ,  G02B6/12

CPC classification number: G02B6/305 ,  G02B6/0046 ,  G02B6/4298 ,  G02B6/12002 ,  G02B6/12004 ,  G02B2006/12147

Abstract: Structures including an edge coupler and methods of forming a structure including an edge coupler. The structure includes a waveguide core over a dielectric layer and a back-end-of-line stack over the dielectric layer and the waveguide core. The back-end-of-line stack includes a side edge and a truncated layer that is overlapped with a tapered section of the waveguide core. The truncated layer has a first end surface adjacent to the side edge and a second end surface above the tapered section of the waveguide core. The truncated layer is tapered from the first end surface to the second end surface.

公开(公告)号：US11609475B2

公开(公告)日：2023-03-21

申请号：US17119042

申请日：2020-12-11

Applicant: GLOBALFOUNDRIES U.S. INC.

Inventor： Michal Rakowski ,  Yusheng Bian ,  Won Suk Lee ,  Roderick A. Augur

IPC: G02F1/225

Abstract: Embodiments of the disclosure provide an optical ring modulator. The optical ring modulator includes waveguide with a first semiconductor material of a first doping type, and a second semiconductor material having a second doping type adjacent the first semiconductor material. A P-N junction is between the first semiconductor material and the second semiconductor material. A plurality of photonic crystal layers, each embedded within the first semiconductor material or the second semiconductor material, has an upper surface that is substantially coplanar with an upper surface of the waveguide structure.

公开(公告)号：US20230067304A1

公开(公告)日：2023-03-02

申请号：US17411122

申请日：2021-08-25

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Roderick A. Augur

IPC: G02B6/122 ,  G02B6/125 ,  G02B6/136

Abstract: Disclosed is a photonic integrated circuit (PIC) structure including: a first waveguide with a first main body and a first end portion, which is tapered; and a second waveguide with a second main body and a second end portion, which has two branch waveguides that are positioned adjacent to opposing sides, respectively, of the first end portion of the first waveguide and that branch out from the second main body, thereby forming a V, U or similar shape. The arrangement of the two branch waveguides of the second end portion of the second waveguide relative to the tapered first end portion of the first waveguide allows for mode matching conditions to be met at multiple locations at the interface between the waveguides, thereby creating multiple signal paths between the waveguides and effectively reducing the light signal power density along any one path to prevent or at least minimize any power-induced damage.

公开(公告)号：US20230011972A1

公开(公告)日：2023-01-12

申请号：US17931933

申请日：2022-09-14

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Roderick A. Augur ,  Michal Rakowski ,  Kenneth J. Giewont ,  Karen A. Nummy

IPC: H01S5/20 ,  H01S5/30 ,  H01S5/223

Abstract: A laser structure, including: a dielectric matrix formed of a first material; a laser source formed within the dielectric matrix and formed of a semiconductor material; and a plurality of side confining features formed within the dielectric matrix and extending parallel to and along a length of the laser source. The plurality of side confining features are formed of the semiconductor material.

公开(公告)号：US11550100B2

公开(公告)日：2023-01-10

申请号：US17202729

申请日：2021-03-16

Applicant: GLOBALFOUNDRIES U.S. Inc. ,  KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yusheng Bian ,  Michal Rakowski ,  Roderick A. Augur ,  Marios Papadovasilakis ,  Sujith Chandran ,  Jaime Viegas ,  Yonas Gebregiorgis

IPC: G02B6/10 ,  G02B6/12 ,  G02B6/26 ,  G02B6/42 ,  G02B6/125 ,  G02B6/13 ,  G02B6/122

Abstract: Structures for a wavelength-division multiplexing filter and methods of forming a structure for a wavelength-division multiplexing filter. A waveguide core of the wavelength-division multiplexing filter includes a first bend having a first curvature and a second bend having a second curvature different than the first curvature. The structure further includes a waveguide core region having a first end surface, a second end surface, and a bend arranged between the first and second end surfaces. The bend is positioned over the first bend of the waveguide core in an overlapping relationship.

公开(公告)号：US11515685B2

公开(公告)日：2022-11-29

申请号：US17167201

申请日：2021-02-04

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Roderick A. Augur ,  Michal Rakowski ,  Kenneth J. Giewont ,  Karen A. Nummy

IPC: H01S5/00 ,  H01S5/20 ,  H01S5/30 ,  H01S5/223 ,  H01S5/026 ,  H01S5/323 ,  H01S5/02

Abstract: A laser structure, including: a dielectric matrix formed of a first material; a laser source formed within the dielectric matrix and formed of a semiconductor material; and a plurality of side confining features formed within the dielectric matrix and extending parallel to and along a length of the laser source. The plurality of side confining features are formed of the semiconductor material.

公开(公告)号：US11187852B1

公开(公告)日：2021-11-30

申请号：US17160710

申请日：2021-01-28

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Domingo Ferrer ,  Roderick A. Augur ,  Michal Rakowski

IPC: G02B6/02 ,  G02B6/293 ,  G02B6/34 ,  G02B6/028 ,  G02B6/36

Abstract: Structures that include a Bragg grating and methods of fabricating a structure that includes a Bragg grating. The structure includes a waveguide core and a Bragg grating having a plurality of segments positioned with a spaced arrangement adjacent to the waveguide core. Each segment includes one or more exterior surfaces. The structure further includes a silicide layer located on the one or more exterior surfaces of each segment.