飞秒激光在光子晶体光纤中产生超连续光谱机制的实验研究  

Experimental analysis of the dependence factor during supercontinuum generation in photonic crystal fiber

作　　者：胡明列[1] 王清月[1] 栗岩峰[1] 王专[1] 张志刚[1] 柴路[1] 章若冰[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院

出　　处：《物理学报》2004年第12期4243-4247,共5页Acta Physica Sinica

基　　金：国家重点基础研究专项基金 (批准号:G19990 75 2 0 1;2 0 0 3CB314 90 4);国家自然科学基金(批准号 :60 2 780 0 3 );国家高技术研究发展计划(批准号:2 0 0 3AA3 110 10 )资助的课题~~

摘　　要：报道了利用零色散在 780nm处的光子晶体光纤与纳焦耳量级的飞秒激光脉冲相互作用的实验结果 .实验使用35fs,中心波长 810— 84 0nm ,单脉冲能量可达 14nJ的飞秒激光光源获得了超过一个倍频程的平坦超连续光谱( 5 0 0— 110 0nm) .在不同功率、不同中心波长、不同啁啾和有无直流成分的多种飞秒脉冲激光的条件下 ,研究了超连续光谱的产生情况 .并对一系列现象进行了对比 。An experimental study of supercontinuum generation in a photonic crystal fiber with zero dispersion wavelength 780?nm by femtosecond laser and its dependence factor is presented. Supercontinuum light with a spectrum more than one octave broad (500-1100?nm) was generated in a photonic crystal fiber by femtosecond pulses from a self-starting,self-mode locked Ti:sapphire oscillator running at center wavelength of 810-840?nm. Different supercontinuums were generated by the 35?fs pulses with different power,central wavelength,pre-chirp,and the continuous noise in the femtosecond pulses. Some reasonable analysis result is obtained from the comparisons of the experimental results,and the mechanism of the supercontinuum generation is analyzed.

关 键 词：超连续光谱 光子晶体光纤 中心波长 飞秒激光 飞秒脉冲激光 啁啾 单脉冲 平坦 零色散 相互作用 

分 类 号：TN818[电子电信—信息与通信工程]