Method and device for amplifying an optical signal
US8908262B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 5, 2011 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Sep 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0675
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to the invention, the optical signal (SE) is spatially divided into N elementary optical signals (SE.1, SE.2, . . . , SE.N), the spectral ranges thereof being adjacent in pairs and forming, substantially by juxtaposition, the spectral range of the optical signal; these N elementary signals are amplified respectively by means of N elementary amplifiers (4.1, 4.2, . . . , 4.N), the spectral ranges thereof respectively comprising the spectral ranges of said N elementary signals; the N amplified elementary signals (Ss.1, Ss.2, . . . , Ss.N) are assembled to form an amplified optical signal (Ss), the spectral range thereof substantially coinciding with a predetermined spectral range, and finally the spectral phases of the N initial elementary signals (Ss.1, Ss.2, . . . , Ss.N) are adjusted before amplification on the basis of the spectral phase of said amplified signal (Ss).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.