Invention Grant
- Patent Title: Digital coherent optical receiver, adaptive equalizer, and digital coherent optical communication method
- Patent Title (中): 数字相干光接收机，自适应均衡器和数字相干光通信方式
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Application No.: US13283214Application Date: 2011-10-27
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Publication No.: US08989602B2Publication Date: 2015-03-24
- Inventor: Kosuke Komaki , Osamu Takeuchi
- Applicant: Kosuke Komaki , Osamu Takeuchi
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2010-274933 20101209
- Main IPC: H04B10/06
- IPC: H04B10/06 ; H04L25/03 ; H04B10/61
Abstract:
A digital coherent optical receiver includes a processor that is operative to separate electric signals obtained by converting an optical signal into a horizontal signal component and a vertical signal component; to generate a histogram of the horizontal signal component and the vertical signal component as outputs of the equalizing filter; and to determine a presence/absence of local convergence based on distribution of the histogram of the horizontal signal component and the histogram of the vertical signal component.
Public/Granted literature
- US20120148266A1 DIGITAL COHERENT OPTICAL RECEIVER, ADAPTIVE EQUALIZER, AND DIGITAL COHERENT OPTICAL COMMUNICATION METHOD Public/Granted day:2012-06-14
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