公开(公告)号：US11280961B1

公开(公告)日：2022-03-22

申请号：US17113567

申请日：2020-12-07

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Alec Hammond ,  Yusheng Bian ,  Michal Rakowski ,  Won Suk Lee ,  Asif J. Chowdhury ,  Roderick A. Augur

IPC: G02B6/125 ,  G02B6/12

Abstract: Structures for an optical power splitter and methods of forming a structure for an optical power splitter. A splitter body defines a multimode interference region of the optical power splitter. A first side element positioned adjacent to a first side surface of the splitter body, and a second side element positioned adjacent to a second side surface of the splitter body.

公开(公告)号：US20210389521A1

公开(公告)日：2021-12-16

申请号：US16901509

申请日：2020-06-15

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Judson Holt ,  Yusheng Bian ,  Andreas D. Stricker ,  Colleen Meagher ,  Michal Rakowski

IPC: G02B6/12 ,  G02B6/13 ,  H01L31/0232 ,  H01L31/028 ,  H01L31/18

Abstract: Structures for a photodetector and methods of fabricating a structure for a photodetector. A photodetector may have a light-absorbing layer comprised of germanium. A waveguide core may be coupled to the light-absorbing layer. The waveguide core may be comprised of a dielectric material, such as silicon nitride. Another waveguide core, which may be comprised of a different material such as single-crystal silicon, may be coupled to the light-absorbing layer.

公开(公告)号：US20210325603A1

公开(公告)日：2021-10-21

申请号：US16849355

申请日：2020-04-15

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Won Suk Lee

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

Abstract: Structures for a polarizer and methods of forming a structure for a polarizer. A polarizer includes a first waveguide core and a layer that is positioned adjacent to a side surface of the first waveguide core. The layer is composed of a first material having a permittivity with an imaginary part that ranges from 0 to about 15. A second waveguide core is positioned over the first waveguide core. The second waveguide core is composed of a second material that is different in composition from the first material.

公开(公告)号：US20210318490A1

公开(公告)日：2021-10-14

申请号：US16842887

申请日：2020-04-08

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Bo Peng ,  Yusheng Bian ,  Michal Rakowski ,  Tymon Barwicz

IPC: G02B6/122 ,  G02F1/225

Abstract: One illustrative backscattering generator disclosed herein includes a low-reflection waveguide structure, a slot waveguide structure comprising a first waveguide, a second waveguide and a slot located between the first waveguide and the second waveguide, and a variable direction coupler operatively coupled to the low-reflection waveguide structure and the slot waveguide structure.

公开(公告)号：US11137543B2

公开(公告)日：2021-10-05

申请号：US16727400

申请日：2019-12-26

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Ajey Poovannummoottil Jacob

IPC: G02B6/12 ,  G02B6/126 ,  G02B6/122 ,  G02B6/27

Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A first waveguide core includes a section and a taper connected to the section. A second waveguide core is laterally positioned adjacent to the taper of the first waveguide core. An absorber is connected to the section of the first waveguide core. The absorber is composed of germanium.

公开(公告)号：US11126019B2

公开(公告)日：2021-09-21

申请号：US16718561

申请日：2019-12-18

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Ajey Poovannummoottil Jacob

IPC: G02F1/01

Abstract: One optical antenna coupler includes a base body having a first waveguide and a second waveguide and a plurality of antenna coupler elements positioned above an upper surface of the base body that are adapted to be irradiated by an incident light. The plurality of antenna coupler elements includes at least one variable optical characteristics (VOC) antenna coupler element that comprises a VOC material, wherein the at least one VOC antenna coupler element is operatively coupled to a first energy source. The VOC antenna coupler element is adapted to be transitioned from a metallic state to an insulator state and vice versa. In the metallic state, substantially all of the incident light is directed out of the optical antenna coupler via the first waveguide and, in the insulator state, substantially all of the incident light is directed out of the optical antenna coupler via the second waveguide.

公开(公告)号：US11105978B2

公开(公告)日：2021-08-31

申请号：US16781324

申请日：2020-02-04

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Ajey Poovannummoottil Jacob

IPC: G02B6/12 ,  G02B6/126 ,  G02B6/13 ,  G02B6/125 ,  G02B6/122 ,  G02B6/10

Abstract: Structures for a polarizer and methods of fabricating a structure for a polarizer. A first waveguide core has a first tapered section, a second tapered section, and a section positioned along a longitudinal axis between the first tapered section and the second tapered section. The first tapered section and the second tapered section each narrow in a direction along the longitudinal axis toward the section. A second waveguide core has a first terminating end, a second terminating end, and a section that is arranged between the first and second terminating ends. The section of the second waveguide core is positioned either over or below the section of the first waveguide core.

公开(公告)号：US11092743B2

公开(公告)日：2021-08-17

申请号：US16749363

申请日：2020-01-22

Applicant: GLOBALFOUNDRIES U.S. INC.

Inventor： Yusheng Bian ,  Ajey Poovannummoottil Jacob ,  Won Suk Lee

IPC: G02B6/122 ,  G02B6/12

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to waveguide absorbers and methods of manufacture. A structure includes: a photonics component; and a vanadate waveguide absorber adjacent to the photonics component.

公开(公告)号：US20210215873A1

公开(公告)日：2021-07-15

申请号：US16741792

申请日：2020-01-14

Applicant: GLOBALFOUNDRIES U.S. INC.

Inventor： Yusheng Bian ,  Ajey Poovannummoottil Jacob

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

Abstract: Disclosed are embodiments of an on-chip polarizer and of methods of forming the polarizer. The polarizer includes first and second waveguides with different shapes at different design levels above a substrate. The first waveguide has a main body between an input end and an output end. The second waveguide is spiral in shape with an inner end and with an outer end that is evanescently coupled to the main body of the first waveguide. Light signals, including first light signals with a first type polarization and second light signals with a second type polarity, are received at the input end of the first waveguide. The first waveguide passes the first light signals to the output end and passes at least some second light signals out the main body and into the outer end of the second waveguide. The second waveguide attenuates the received second light signals.

公开(公告)号：US11036003B2

公开(公告)日：2021-06-15

申请号：US16549197

申请日：2019-08-23

Applicant: GLOBALFOUNDRIES U.S. Inc.

Inventor： Yusheng Bian ,  Ajey Poovannummoottil Jacob

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/136 ,  G02B6/30

Abstract: Structures for a waveguide coupler and methods of fabricating a structure for a waveguide coupler. A first waveguide core has a first width, a second waveguide core has a second width less than the first width, and a waveguide coupler includes first and second tapers that are positioned between the first waveguide core and the second waveguide core. The second taper is directly connected with the first taper, and the first and second tapers connect the first and second waveguide cores.