Finally, according to the dispersion compensation theory, we use single mode fiber with negative group velocity dispersion (GVD) to compress the mode-locked EDFL output with positively chirped pulse.

• 最后，根据色散补偿的原理，将正啾频量的输出脉冲利用单模光纤引入的负啾频量去达到脉冲压缩的效果。