通过计算机系统仿真研究了应用相敏光放大器(PSA)作为在线放大器的光孤子传输系统,并与相应的掺铒光纤放大器(EDFA)光孤子系统作了比较.仿真了平均孤子和动态孤子两种传输方案.研究结果表明,由于PSA不存在ASE噪声,应用PSA作为在线放大器可以克服光孤子系统中的Gordon-Haus限制.对平均孤子,在没有附加其它的孤子控制技术的情况下,PSA系统孤子的稳定传输距离得到极大的延长.对动态孤子,PSA亦表现出良好的抑制脉冲展宽效果,但脉冲的幅度经长距离传输后显著下降.
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