利用一段色散位移光纤(DSF)对半导体激光器产生的皮秒啁啾超高斯脉冲的频谱补偿修正，获得了较好的修正结果。适当压缩脉冲频谱可以减小码间干扰，防止频谱因过度展宽而导致 信号脉冲失真，从而在一定程度上有利于超高斯脉冲的稳定传输，提高光纤系统的传输距离。研究时，采用对称分步傅里叶法(SSFM)，数值模拟了初始啁啾为－3， 初始脉宽为10 ps，峰值功率为30 W 的啁啾超高斯脉冲，在DSF中传输时消啁啾的频谱演变过程。模拟结果表明，利用长度为0.5 m的DSF可以最大程度上消除该初始脉冲的“红移”啁啾。

Compensation and correction of spectrum of picosecond chirped super-Gaussian pulses generated by semiconductor lasers using a dispersion-shifted fiber (DSF) were achieved. Appropriate spectral compression can reduce inter-symbol interference and prevent the signal distortion induced by excessive spectral stretching, thus facilitating steady propagation of super-Gaussian pulses to a certain extent and increasing propagation distance of optical fiber system. The spectral evolution of the super-Gaussian pulse was simulated numerically by symmetrical split-step Fourier method (SSFM) with initial chip of －3, pulse width of 10 ps and peak power of 30 W in the DSF. The results show that the DSF with length of 0.5 m can greatly eliminate “red shift” chirps of the initial pulse.