Optical communication system with automatic gain control
US5311347A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/078
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical communication system formed by terminal stations, optical repeaters provided between terminal stations, and optical fiber cables connecting between terminal stations through optical repeaters, the system includes: an optical wavelength multiplexer provided in a terminal station to multiplex a first optical signal having a wavelength .lambda.1 with a second optical signal having a wavelength .lambda.2; an optical wavelength demultiplexer provided in the terminal station to demultiplex the first optical signal from the second optical signal; plural optical repeaters, each having a unit for amplifying the first and second optical signals in accordance with a level of the second optical signal separated from the first optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.