公开(公告)号：EP3120471A1

公开(公告)日：2017-01-25

申请号：EP15711357.2

申请日：2015-03-04

申请人： Xtera Communications. Inc.

发明人： PELOUCH, Wayne S. ,  CHANG, Do-IL

IPC分类号： H04B10/291

CPC分类号： H01S3/06754 ,  H01S3/302 ,  H04B10/2916

摘要： A remote optically pumped amplifier in a multi-span optical communications link. A backwards Raman pump module performs backwards Raman amplification in an optical communications span that contains the remote optically pumped amplifier. A residual amount of backwards Raman pump power is then used to power the remote optically pumped amplifier. The remote optically pumped amplifier may be located 40 to 120 kilometers in optical distance from the backwards Raman pump module such that at least three milliwatts of residual Raman pump power is received by the remote optically pumped amplifier. The Raman pump module may be a multi-pump Raman pump module. A controller controls pump power provided by at least one of the pumps of the backwards Raman pump module, so as to at least partially compensate for optical signal strength versus wavelength variation introduced by the remote optically pumped amplifier and the backwards Raman pump module.

摘要翻译： 多跨度光通信链路中的远程光泵浦放大器。 向后拉曼泵模块在包含远程光泵浦放大器的光通信范围内执行向后拉曼放大。 然后使用剩余量的向后拉曼泵浦功率为远程光泵浦放大器供电。 远程光泵浦放大器可以距离向后拉曼泵模块的光学距离位于40至120公里处，使得远程光泵浦放大器接收至少三毫瓦的残余拉曼泵浦功率。 拉曼泵模块可以是多泵拉曼泵模块。 控制器控制由向后拉曼泵模块的至少一个泵提供的泵浦功率，以便至少部分地补偿由远程光泵浦放大器和向后拉曼泵模块引入的光信号强度对波长变化。