Generation of nanosecond cylindrical vector beams in two-mode fiber and its applications of stimulated Raman scattering  

作　　者：Wending Zhang Lu Zhang Chao Meng and Feng Gao 张文定;张录;孟超;高峰(MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology,School of Physics Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China;MOE Key Laboratory of Weak-Light Nonlinear Photonics,TEDA Applied Physics Institute and School of Physics,Nankai University,Tianjin 300457,China)

机构地区：[1]MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology,School of Physics Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China [2]MOE Key Laboratory of Weak-Light Nonlinear Photonics,TEDA Applied Physics Institute and School of Physics,Nankai University,Tianjin 300457,China

出　　处：《Chinese Optics Letters》2021年第1期14-18,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC)(Nos.11974282,61675169,and 91950207)。

摘　　要：We present the generation of the nanosecond cylindrical vector beams(CVBs)in a two-mode fiber(TMF)and its applications of stimulated Raman scattering.The nanosecond(1064 nm,10 ns,10 Hz)CVBs have been directly produced with mode conversion efficiency of~18 d B(98.4%)via an acoustically induced fiber grating,and then the stimulated Raman scattering signal is generated based on the transmission of the nanosecond CVBs in a 100-m-long TMF.The transverse mode intensity and polarization distributions of the first-order Stokes shift component(1116.8 nm)are consistent with the nanosecond CVBs pump pulse.

关 键 词：vector beam stimulated Raman scattering fiber grating 

分 类 号：TN253[电子电信—物理电子学]