中文摘要：

提出了一种基于商用化的铌酸锂调制器产生超短光脉冲的方法。直流光依次经过相位调制器和强度调制器调制，利用色散补偿光纤（DCF）和梳状色散光纤链（CDPF）对调制产生的光脉冲分别进行啁啾补偿、非线性压缩。压缩后的光脉冲注入高非线性光纤（HNLF），利用其自相位调制效应（SPM）展开脉冲光谱后滤波，可以有效地消除光脉冲的基座，实现光脉冲的整形。获得了10GHz的1．8ps无基座近变换极限光脉冲。

英文摘要：

A kind of ultra-short optical pulse source based on commercial LiNbO3 modulators is proposed. After phase and intensity hybrid modulation of a continuous-wave light, a dispersion-compensating fiber （DCF） and a comb-like dispersion profiled fiber （CDPF） were used for linear chirp compensation and nonlinear pulse compression of the generated optical pulse, respectively. The compressed pulse was then injected to a highly-nonlinear fiber （HNLF） and the pulse spectrum was broadened by self-phase modulation （SPM）. After filtering with an optical band-pass filter （OBPF）, an ultra-short optical pulse without any pedestal was generated. A 1.8 ps transform-limited ultrashort pulse with no pedestal is obtained.