Device for integrating demultiplexing and optical channel monitoring
US7305185B2 · kind B2 · utility
0Cited by
8References
11Claims
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Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Mar 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0001
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for integrating power monitoring capabilities with passive demultiplexing operations, utilizing the high-order diffraction from an optical diffraction grating. The technique helps avoid insertion loss and polarization dependent loss penalties, and device size penalties, typically incurred with optical taps and multiple diffraction gratings. The technique can also be modified slightly to provide information on channel wavelength and optical signal-to-noise-ratio, as well as channel power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.