微结构光纤中高效反Stokes波产生研究  

Research on the efficient anti-Stokes generation in microstructure fiber

作　　者：闫培光[1] 李乙钢[2] 吕可诚[2] 郭春雨[1] 阮双琛[1] 

机构地区：[1]深圳大学工程技术学院,深圳518060 [2]南开大学物理科学学院,天津300071

出　　处：《深圳大学学报（理工版）》2006年第2期98-101,共4页Journal of Shenzhen University(Science and Engineering)

基　　金：高等学校博士学科点专项科研基金资助项目(20030055016);广东省自然科学基金资助项目(011736)

摘　　要：利用锁模Ti:sapphire振荡器产生的飞秒脉冲,抽运一段无序多芯结构的微结构光纤,获得高效反Stokes波.在输出光谱中测量其峰值高度,为残余抽运光峰值高度的2.86倍.对这一独特现象进行理论分析,认为高效反Stokes波的产生与光纤本身的特性有关.光纤含有两个零色散点,使得与其相位匹配的参量四波混频效应更能有效产生反Stokes波.The anti-Stokes generation in an irregular multicore lnierostructure fiber with double zero dispersion wavelengths was experimentally and theoretically studied. We demonstrated highly efficient anti-Stokes signal generation inside the irregular muhicore microstructure fiber by using femtosecond pulses generated from a mode-locked Ti：sapphire Oscillator. The ratio of the amplitude of anti-Stokes wave to that of the resident pump wave was measured as 2.86 in the output spectrum. The sinlulation results indicate that the features of the double zero dispersion wavelengths of the fiber is responsible for meeting the phase matching condition of four wave mixing, which produces the observed large anti-Stokes wave.

关 键 词：微结构光纤 反Stokes波 四波混频 双零色散波长 

分 类 号：TN25[电子电信—物理电子学]