Coherent augmented optical add-drop multiplexer
US8958696B2 · kind B2 · utility
17Cited by
5References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 15, 2009 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Apr 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an Optical Add-Drop Multiplexer, a drop section comprises a Wavelength Selective Switch (WSS) having at least one drop-port, the WSS being operative to couple a respective set of w (where w>1) wavelength channels from a received Wavelength Division Multiplexed (WDM) signal to each drop port. A respective 1:s power splitter is associated with each drop port. Each power splitter supplies the respective set of channels received from its drop port to each one of a corresponding set of coherent receivers. Each coherent receiver operates to receive a selected one of the respective set of channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.