色散补偿及高阶孤子压缩啁啾光脉冲的理论与实验研究  

THEORETICAL AND EXPERIMENTAL STUDY ON COMPRESSION OF CHIRPED OPTICAL PULSES UTILIZING DISPERSION COMPENSATION AND HIGH ORDER SOLITON EFFECT *

作　　者：伍剑[1] 娄采云[1] 李玉华[1] 高以智[1] 

机构地区：[1]清华大学电子工程系

出　　处：《物理学报》1998年第4期619-624,共6页Acta Physica Sinica

基　　金：国家自然科学基金;国家高技术研究发展计划

摘　　要：利用半导体激光器的单模速率方程及超短光脉冲在光纤中传输的非线性薛定谔（ＮＬＳ）方程，从理论及实验上研究了增益开关ＤＦＢ半导体激光器出射的啁啾光脉冲在色散补偿光纤（ＤＣＦ）及色散位移光纤（ＤＳＦ）中的压缩过程与规律．实验上，从１５５μｍ增益开关ＤＦＢ半导体激光器出射的重复频率为２５ＧＨｚ、脉冲宽度为５３８ｐｓ的光脉冲经色散补偿光纤压缩至１２ｐｓ，而后利用色散位移光纤中的高阶孤子压缩效应将脉冲压缩至２５ｐｓ．改变色散位移光纤参数及入射光功率后获得最窄光脉冲宽度为２１ｐｓ．理论与实验结果符合．Abstract In this paper,we study theoretically and experimentally the compression of chirped optical pulses in dispersion compensation fiber and dispersion shifted fiber utilizing single mode rate equation of semiconductor laser and nonlinear Schrdinger (NLS) equation.In experiment,the 53 8ps pulses generated by a gain switched DFB semiconductor laser diode with 2 5GHz repetition rate were compressed to 12ps in a length of dispersion compensation fiber.Then,the 12ps pulses were compressed to 2 5 or 2 1ps due to high order soliton effect in dispersion shifted fiber. Experimental results agree with theoretical results.

关 键 词：啁啾光脉冲 半导体激光器 色散补偿 孤子压缩 

分 类 号：TN25[电子电信—物理电子学] TN248.4