Optical signal processing
US9069192B2 · kind B2 · utility
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Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Jul 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0092
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical regenerator for regenerating a multi-level phase encoded signal. A first non-linear medium (HNLF1) generates a comb of frequency harmonics from the signal under the action of a coherent pump, each component bearing the phase encoded data. A filter selects the first and (M−1)th order components. The filtered signal is then input to a second non-linear medium (HNLF2) where a further pump is applied, to coherently add the first and (M−1)th order components and regenerate the signal by reducing phase noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.