Digital coherent optical receiver, adaptive equalizer, and digital coherent optical communication method
US8989602B2 · kind B2 · utility
5Cited by
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15Claims
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Key dates
| Filing date | Oct 27, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/0363
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.