Method and apparatus for automatically controlling optical signal power in optical transmission systems
US7957643B2 · kind B2 · utility
4Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2002 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Apr 7, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for controlling the power level of an optical signal includes detecting the loss of a supervisory signal counter-propagating in an optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.