Invention Grant
- Patent Title: Method and system for balancing optical receiver
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Application No.: US14933692Application Date: 2015-11-05
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Publication No.: US10209127B2Publication Date: 2019-02-19
- Inventor: Tom Luk , Christopher Falt , Sean Sebastian O'Keefe
- Applicant: Ciena Corporation
- Applicant Address: US MD Hanover
- Assignee: Ciena Corporation
- Current Assignee: Ciena Corporation
- Current Assignee Address: US MD Hanover
- Agency: Clements Bernard Walker PLLC
- Agent Christopher L. Bernard; Lawrence A. Baratta, Jr.
- Main IPC: G01J1/44
- IPC: G01J1/44 ; H04B10/69 ; G01J1/42 ; H03F3/08 ; H03F3/45

Abstract:
A method. The method may include transmitting an optical noise signal to a first photodetector and a second photodetector within an optical receiver circuit that includes a transimpedance amplifier circuit. The method may further include measuring, in response to transmitting the optical noise signal, a power output from the optical receiver circuit. The method may further include determining, using the power output, a difference in photodetector responsivity between the first photodetector and the second photodetector. The method may further include adjusting, using a transimpedance gain controller, an amplifier gain within the optical receiver circuit to decrease a difference in photodetector responsivity between the first photodetector and the second photodetector.
Public/Granted literature
- US20170131142A1 METHOD AND SYSTEM FOR BALANCING OPTICAL RECEIVER Public/Granted day:2017-05-11
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