Invention Grant
- Patent Title: Multimode waveguide bends with features to reduce bending loss
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Application No.: US16989214Application Date: 2020-08-10
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Publication No.: US11275207B2Publication Date: 2022-03-15
- Inventor: Yusheng Bian , Ajey Poovannummoottil Jacob
- Applicant: GLOBALFOUNDRIES U.S. Inc.
- Applicant Address: US CA Santa Clara
- Assignee: GLOBALFOUNDRIES U.S. Inc.
- Current Assignee: GLOBALFOUNDRIES U.S. Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Thompson Hine LLP
- Agent Anthony Canale
- Main IPC: G02B6/125
- IPC: G02B6/125 ; G02B6/136 ; G02B6/12
Abstract:
Structures for a waveguide bend and methods of fabricating a structure for a waveguide bend. A waveguide core has a first section, a second section, and a waveguide bend connecting the first section with the second section. The waveguide core includes a first side surface extending about an inner radius of the waveguide bend and a second side surface extending about an outer radius of the waveguide bend. A curved strip is arranged over the waveguide bend adjacent to the first side surface or the second side surface.
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