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

被引：6
|
作者：
Zhang, Wending [1 ,2 ]
Zhang, Lu [1 ,2 ]
Meng, Chao [1 ,2 ]
Gao, Feng [3 ,4 ]
机构：
[1] Northwestern Polytech Univ, Sch Phys Sci & Technol, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Sch Phys Sci & Technol, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Peoples R China
[3] Nankai Univ, TEDA Appl Phys Inst, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300457, Peoples R China
[4] Nankai Univ, Sch Phys, Tianjin 300457, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2021年 / 19卷 / 01期
基金：
中国国家自然科学基金;
关键词：
vector beam; stimulated Raman scattering; fiber grating; LONGITUDINAL-FIELD; TIP; MODES; SURFACE;
D O I：
10.3788/COL202119.010603
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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 similar to 18 dB (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.
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页数：5
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