单模光纤中四波混频对受激拉曼散射影响的研究  

Four Wave Mixing Effect on Simulated Raman Scattering in Single Mode Fiber

作　　者：张鹏[1,2] 田春林[2] 乔勇[2] 吕栋栋 Zhang Peng;Tian Chunlin;Qiao Yong;Lv Dongdong(School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun, Jilin 130022, China;College of Mechanical and Electric Engineering, Changchun University of Science and Technology Changchun, Jilin 130022, China)

机构地区：[1]长春理工大学光电工程学院,吉林长春130022 [2]长春理工大学机电工程学院,吉林长春130022

出　　处：《激光与光电子学进展》2018年第6期345-349,共5页Laser & Optoelectronics Progress

基　　金：国家863计划(2012AAXXX090)

摘　　要：采用最大峰值功率为50 MW的531.81nm脉冲激光作为抽运光源,抽运长度为500 m石英单模光纤(SMF)产生受激非线性效应。基于非线性光学理论、光纤传输理论以及实验测量数据,研究了四波混频(FWM)效应对受激拉曼散射(SRS)光谱结构的影响,并给出了SRS和FWM效应在石英SMF中的传输模式。研究结果表明:在石英SMF中,FWM效应会诱导SRS效应的低阶斯托克斯光产生附加峰谱线,同时促使SRS的高阶斯托克斯光谱线产生光谱展宽效应,从而导致SRS的高阶斯托克斯光谱线发生频移。Pulse laser with 50 MW maximum peak power and wavelength of 531.81 nm is used to pump 500 m silica single mode fiber （SMF） in order to induce the stimulated nonlinear effect. Based on the nonlinear optics theory, optical fiber transmission theory and experimental measured data, effect of the four-wave mixing （FWM） on the spectral structure of stimulated Raman scattering （SRS） is studied. And the transmission modes of SRS and FWM in the silica SMF are also presented. Research results show that in the silica SMF, FWM effect is able to induce the low order Stokes light of SRS to produce additional peak spectral lines. Meanwhile the spectral broadening effect of the high order Stokes spectral lines of SRS can also be produced, and this could finally lead to frequency shift of the high order Stokes spectral lines of SRS.

关 键 词：非线性光学 单模光纤 四波混频效应 受激拉曼散射 

分 类 号：O437.7[机械工程—光学工程]