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利用色散补偿光纤（ＤＣＦ）及色散位移光纤（ＤＳＦ）压缩重复频率为２．５ＧＨｚ的增益开关量子阱ＤＦＢ半导体激光器出射的光脉冲，将光脉冲由５３．８ｐｓ压缩至２．５ｐｓ，而后利用色散渐减光纤将２．５ｐｓ的光脉冲进一步压缩至０．８３ｐｓ。
The light pulse from the gain switching quantum well DFB semiconductor laser with 2.5GHz repetition rate was compressed by dispersion compensation fiber (DCF) and dispersion shifted fiber (DSF), the light pulse was compressed from 53.8ps to 2.5ps, The decreasing fiber further compresses the 2.5 ps light pulse to 0.83 ps.