全部利用线性啁啾光纤布拉格光栅(CBG)作色散补偿模块和在线通道滤波顺,在2500km超长距离的G.652光纤上实现10Ghps归零码(RZ)、载波抑制归零码(CSRZ)光信号的无电中继传输,并在2080km和2560km处分别对2种信号的传输性能进行了测试。CSRZ在上述2处的功率代价分别为~1dBm和~3dBm(BER-10^12,PRBS=10^23-1),RZ的功率代价分别为~3dBm和~5dBm,验证了在相同系统平台下CSRZ光信号比RZ光信号有更好的性能.
Using dispersion compensation chirped fiber Bragg grating(CBG), 2 500 km- 10 Gbps return to zero(RZ) and carrier suppressed RZ(CSRZ) transmission system on G. 652 fiber is successfully demonstrated without electric regenerator. At 2 080 km and 2 560 km, power penalty for RZ is about 3 dBm and 5 dBm (condition.RZ signal, BER = 10^-12, PRBS = 10^(23-1)) ;And power penalty for CSRZ is about 1 dBm and 3 dBm. The result indicates it is superior to the system using CSRZ signal under same condition.