QAM vector signal generation by external modulator
US10073319B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | May 4, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical signal transmitter produces optical signals comprising QAM modulated vector signals generated using a single external electro-optical modulator operated in conjunction with a wavelength selective switch. The transmission processing achieves adaptive photonic frequency multiplication and comprises QAM modulated signals with high order constellations such as 8-QAM, 16-QAM, 32-QAM and 64-QAM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.