公开(公告)号：US07079769B1

公开(公告)日：2006-07-18

申请号：US09619395

申请日：2000-07-19

申请人： Masa Tsukitani ,  Eisuke Sasaoka ,  Toshiaki Okuno

发明人： Masa Tsukitani ,  Eisuke Sasaoka ,  Toshiaki Okuno

IPC分类号： G02B6/00 ,  H04J14/02

CPC分类号： G02B6/02223 ,  G02B6/02242 ,  G02B6/02261 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/29317 ,  G02B6/29377 ,  G02B6/29394 ,  H04B10/25133 ,  H04B10/291 ,  H04B2210/258

摘要： In the dispersion-compensating system of the present invention, a demultiplexer demultiplexes optical signals in a signal wavelength band of 1520 nm to 1620 nm propagating through a first common transmission line into C band (1520 nm to 1565 nm) and L band (1565 nm to 1620 nm). Then, the demultiplexer outputs the optical signals of C band into a first branched transmission line and the optical signals of L band into a second branched transmission line. A first dispersion-compensating device is provided on the first common transmission line and compensates for the dispersion in C and L bands. A second dispersion-compensating device is provided on the second branched transmission line and compensates for the dispersion in L band, which has not fully been compensated for by the first dispersion-compensating device. Hence, the dispersion of optical transmission line can fully be reduced in a wide signal light wavelength band.

摘要翻译： 在本发明的色散补偿系统中，解复用器将通过第一公共传输线传播的1520nm至1620nm的信号波长带中的光信号解复用为C波段（1520nm至1565nm）和L波段（1565nm 至1620nm）。 然后，解复用器将C频带的光信号输出到第一分支传输线，并将L频带的光信号输出到第二分支传输线。 在第一公共传输线上提供第一色散补偿装置，并补偿C和L波段的色散。 在第二分支传输线上提供第二色散补偿装置，并补偿尚未完全由第一色散补偿装置补偿的L波段的色散。 因此，在宽信号光波长带中，光传输线的色散可以完全降低。