摘要
本文数值模拟了强度调制光信号在级联光纤放大原常规SMF通信系统中的传输，在模拟中主要考虑了自相位调制、群速色散和ASE噪声。我们使用负色散补偿光纤去补偿群达色散和自相位调制。结果表明如果色散得到很好的补偿，当放大器的间距减少到50km时，无误码2050km传输是可能的。
The propagation of intensity-modulated signal in an cascaded optical amplifier conventional simple mode fiber system is numerically analyzed, taking self-phase modulation (SPM), group-velocity dispersion (GVD), amplifier spontaneous emission (ASE) into account. The effect of GVD and SPM are reduced by dispersion compensation fibers (DCF's). The simulation show if dispersion is well-compensated and amplifier spacing is decreased to 50 km, the distance 2 050 km is possible with errorfree.
出处
《光通信研究》
北大核心
1999年第2期24-27,35,共5页
Study on Optical Communications
关键词
掺铒光纤放大器
自相位调制
EDFA
光纤通信
EDFA
self-phase modulation
group-velocity dispersion
amplifier spontaneous emission noise
