Automatic shutdown system and method for optical multiplexers and demultiplexers
US7280717B2 · kind B2 · utility
0Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | May 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/02216
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An automatic shutdown system for optical multiplexers and demultiplexers includes an optical switch that is disposed in a common optical channel between a transmitter and a receiver of an optical communication system. The optical switch may attenuate or block a signal in the common optical channel during power-off conditions. The optical switch may also provide a low insertion loss and low polarization loss in the common optical channel during power-on conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.