发明名称 Time division demultiplexing using selective raman amplification
摘要 <p>An optical transmission system utilizing a nonlinear fiber demultiplexer. A time division multiplexed optical signal is transmitted via a first optical signal path. An optical pump pulse is transmitted via a second optical signal path. The optical pump pulses are synchronized to correspond to the pulses in the multiplexed optical signal for which extraction is desired. The first and second optical signal paths are coupled such that the portions of the multiplexed signals which are synchronized with the optical pump pulses are amplified through Raman gain. The resulting signal is detected and passed through a threshold detector which filters out pulses below an intensity threshold. The desired demultiplexed signal, which was amplified by the pump pulses, passes through the optical threshold detector as an electronic pulse. &lt;IMAGE&gt;</p>
申请公布号 EP0843435(A2) 申请公布日期 1998.05.20
申请号 EP19970119336 申请日期 1997.11.05
申请人 AT&T CORP. 发明人 HALL STOLEN, ROGERS
分类号 H04J14/08;(IPC1-7):H04J14/08 主分类号 H04J14/08
代理机构 代理人
主权项
地址