Optical modulator
US7302120B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Feb 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical modulator which magnifies a modulation index and reduces affection of SBS by suppressing a light source carrier component in an equivalent light source spectral width and performs more long-distance transmission by suppressing one of sideband spectrums generated by a modulation signal to reduce affection of fiber dispersion, having a light branch means that branches input light having a carrier component into two light waves; a SSB modulation means that modulates one branched wave and generates a wave having the carrier component and one sideband spectrum; an intensity adjustment means that adjusts intensity of the carrier component of the other wave; a phase adjustment means that adjusts the phase of the carrier component with respect to at least one of the two waves; and a multiplexing means that multiplexes the two waves passing through the modulation means, and the intensity and phase adjustment means, and emits output light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.