Optical transmission system
US7474854B2 · kind B2 · utility
3Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2003 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jun 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/25073
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical transmission system which can keep a flat pass characteristic within an optical signal modulation band, a spectrum of a dropped optical signal within a modulation band per channel is monitored, and non-flatness for the optical signal is compensated by detecting the non-flatness of a pass characteristic of a transmission line from the spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.