Invention Grant
- Patent Title: Optical receiver circuit and adjustment method for same
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Application No.: US15384467Application Date: 2016-12-20
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Publication No.: US10014953B2Publication Date: 2018-07-03
- Inventor: Kensuke Ogawa
- Applicant: FUJIKURA LTD.
- Applicant Address: JP Tokyo
- Assignee: FUJIKURA LTD.
- Current Assignee: FUJIKURA LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-128249 20140623
- Main IPC: H04B10/60
- IPC: H04B10/60 ; H04B10/61 ; G02B6/125 ; G02B6/126 ; G02B6/27 ; H04L5/00 ; H04J14/06 ; H04B10/64 ; G02B6/12

Abstract:
An optical receiver circuit includes: a substrate; and an optical waveguide device that is formed on the substrate. The optical waveguide device includes: a first optical splitter section branching the signal light into a first signal light propagation waveguide and a second signal light propagation waveguide and; a second optical splitter section branching the local-oscillator light into a first local-oscillator light propagation waveguide and a second local-oscillator light propagation waveguide; a first optical coupler section that combines the signal light propagating through the first signal light propagation waveguide and the local-oscillator light propagating through the first local-oscillator light propagation waveguide with each other; a second optical coupler section that combines the signal light propagating through the second signal light propagation waveguide and the local-oscillator light propagating through the second local-oscillator light propagation waveguide with each other.
Public/Granted literature
- US20170099110A1 OPTICAL RECEIVER CIRCUIT AND ADJUSTMENT METHOD FOR SAME Public/Granted day:2017-04-06
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