Invention Grant
- Patent Title: Low cost gain clamped EDFA for TWDM passive optical network application
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Application No.: US15428859Application Date: 2017-02-09
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Publication No.: US09948422B2Publication Date: 2018-04-17
- Inventor: Xiangjun Zhao , Chiachi Wang , Daoyi Wang , Cedric Fung Lam , Liang Du , Changhong Joy Jiang
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Honigman Miller Schwartz and Cohn LLP
- Main IPC: H04B10/00
- IPC: H04B10/00 ; H04J14/02 ; H04J14/08

Abstract:
A communication system includes a first optical system and a second optical system optically connected to a clamping laser and a pump laser. The first optical system includes first and second optical splitters. The first optical splitter is configured to receive a clamping laser signal from the clamping laser and split the signal into split clamping laser signals. The second optical splitter is configured to receive a pump laser signal from the pump laser and split signal into split pump laser signals. The second optical system is optically connected to the first optical system and includes amplifier systems. Each amplifier system is configured to receive a multiplexed signal. The second optical system includes first and second combiners optically connected to an erbium-doped fiber. The first combiner is optically connected to the first splitter, and the second combiner is optically connected to the second splitter.
Public/Granted literature
- US20170155461A1 Low Cost Gain Clamped EDFA for TWDM Passive Optical Network Application Public/Granted day:2017-06-01
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