前几个星期，我发贴讨论“激光脉冲经过光纤色散后的频谱宽度变化吗？”非常感谢大
家的讨论和有价值的建议。现在就这个问题我把实验结果再次公布一下，因为以前的实
验有问题。
Pulse information (femtosecond fiber laser):
Spectral width: 30nm
Repetition rate:36MHz
Pulse width: 85fs
Average power of pulse: 45mW
Delta_Lambda=29.9nm after output from 1m of fiber, and Delta_Lambda=30.2nm
after output from a 11m of fiber. The spectral width of our pulse is
indepdent on the fiber length (SMF-28 fiber) without considering the
nonlinear effect of the fiber. The previous reulst for a reduced spe
