Split-band opticaltransmissionsystem, opticaltransmission device, optical receiving device, and use of optical transmission based on above devices.
分频光学传输系统，和光学发送器件，光学接收器件，以及基于上述器件的光学传输的使用方法。
2
This digitalized optical fiber transmissionsystem is upstream line of the bi-directional optical fiber transmissionsystem.
数字化光纤传输系统，为有线制导光纤传输系统的一个部分；
3
WDM technology is a method for increasing the transmission capacity of optical fiber, but the transmission performance in WDM system with high speed and long distance is limited.