摘要
数值模拟了光时分复用８×２．５Ｇｂｉｔ／ｓ的光孤子在１．５５μｍ波长附近的标准单模光纤中的传输．结果表明，若不采用任何消色散的方法，孤子仅能传输几十公里就发生严重的展宽直至分裂．若采用色散补偿的方法消除标准光纤的大色散值，可使系统的传输性能得到大大改善且可延长传输距离．另外通过采用色散补偿，可有效地降低孤子所需的平均功率．
The optical time division multiplexing 8×2.5 Gbit/s soliton signals over standard monomode fiber (SMF) with dispersion compensation have been simulated numerically by using of split step Fourier transform. The results show that soliton can be limited to about tens of kilometers until it severely broadens and breaks up into two pulses without optical dispersion compensation. The results also show that up to 500 km is possible by using dispersion compensating fiber (DCF), as part of each amplifier. In addition, this method significantly reduces the average power required by the solitons.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
1997年第4期33-36,共4页
Journal of Beijing University of Posts and Telecommunications
基金
国家"863计划"资助
关键词
光孤子通信
光纤传输
色散补偿
soliton communications
optical fiber transmission
dispersion compensation
