Advanced optical modulation generation by combining orthogonal polarized optical signals
US10078232B1 · kind B1 · utility
13Cited by
12References
23Claims
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Key dates
| Filing date | Jul 10, 2015 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Jul 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical modulators and modulation techniques for advanced optical modulation formats are described. An optical modulator may include two optical modulators in parallel optical paths, and optical powers in the two paths may be unequal. Polarization in the two paths may be orthogonal, and modulated outputs from each path may be combined to produce multilevel modulation formats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.