发明名称 |
COUNTER-PUMPED DISTRIBUTED RAMAN AMPLIFICATION IN WAVELENGTH DIVISION MULTIPLEX OPTICAL COMMUNICATION SYSTEMS |
摘要 |
A Raman pump module for generating pump radiation having a pump wavelength (λp) for coupling into a transmission fiber of an optical wavelength division multiplex (WDM) communication system to provide Raman amplification of WDM radiation counter propagating therethrough is disclosed. The pump module is for use in a communications system in which the WDM radiation has a transmission waveband (λs) and wherein the transmission fiber has a zero dispersion wavelength (λm) lying midway between the transmission waveband and the pump wavelength. The module comprises a Raman pump laser for generating the pump radiation and a de-correlator for de-correlating the longitudinal modes of the pump radiation before it is coupled into the transmission fiber. |
申请公布号 |
EP1616397(B1) |
申请公布日期 |
2006.08.30 |
申请号 |
EP20040729117 |
申请日期 |
2004.04.23 |
申请人 |
MARCONI COMMUNICATIONS SPA |
发明人 |
SUGLIANI, SIMONE;SACCHI, GIOVANNI;DI PASQUALE, FABRIZIO |
分类号 |
H01S3/094;H01S3/30;H04B10/291 |
主分类号 |
H01S3/094 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|