Invention Grant
- Patent Title: Optical circuit for alignment and optical alignment method
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Application No.: US16973327Application Date: 2019-05-23
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Publication No.: US11340401B2Publication Date: 2022-05-24
- Inventor: Yoshiho Maeda , Toru Miura , Hiroshi Fukuda
- Applicant: Nippon Telegraph and Telephone Corporation
- Applicant Address: JP Tokyo
- Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Slater Matsil, LLP
- Priority: JPJP2018-115148 20180618
- International Application: PCT/JP2019/020470 WO 20190523
- International Announcement: WO2019/244555 WO 20191226
- Main IPC: G02B6/34
- IPC: G02B6/34 ; G02B6/30 ; H01L27/144
Abstract:
A photodiode including a p-type region and an n-type region formed in a core of a grating coupler is provided. The p-type region and the n-type region are each formed as a region having a rectangular shape extending in an array direction of a grating as seen in plan view and are arranged in a direction orthogonal to the array direction of the grating and parallel to a plane of a substrate. A plurality of the p-type regions and a plurality of the n-type regions are formed and alternately arranged.
Public/Granted literature
- US20210208339A1 Optical Circuit for Alignment and Optical Alignment Method Public/Granted day:2021-07-08
Information query
