All-fiber cylindrical vector beams laser based on an acoustically-induced fiber grating

被引：18
|
作者：
Zhang, Xuecheng [1 ,2 ]
Zhang, Wending [1 ,2 ]
Li, Chenyang [1 ,2 ]
Mao, Dong [1 ,2 ]
Gao, Feng [3 ,4 ]
Huang, Ligang [5 ]
Yang, Dexing [1 ,2 ]
Mei, Ting [1 ,2 ]
Zhao, Jianlin [1 ,2 ]
机构：
[1] Northwestern Polytech Univ, Sch Sci, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710072, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Sch Sci, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Shaanxi, Peoples R China
[3] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, TEDA Appl Phys Inst, Tianjin 300457, Peoples R China
[4] Nankai Univ, Sch Phys, Tianjin 300457, Peoples R China
[5] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
来源：
JOURNAL OF OPTICS | 2018年 / 20卷 / 07期
关键词：
fiber laser; cylindrical vector beam; vector mode coupling; acousto-optic coupling; OPTICAL VORTEX GENERATION; 2-MODE FIBER; RADIAL POLARIZATION; GAUSSIAN BEAMS; MODES; PARTICLES; VORTICES; LIGHT;
D O I：
10.1088/2040-8986/aaca1c
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We presented a method to construct an all-fiber laser by using an acoustically-induced fiber grating (AIFG) in two-mode fiber (TMF) within the laser cavity to generate cylindrical vector beams (CVBs) in communication band. Based on the polarization dependent vector mode coupling characteristic of an AIFG, the CVBs were generated by respectively coupling HE11x and HE11y modes to TM01 and TE01 modes, which have radial and azimuthal polarizations characteristics, respectively. The output of the all-fiber laser could be adjusted from a linearly-polarized Gaussian mode to a radially or an azimuthally polarized vector mode through a polarization controller to adjust the linear polarization direction of the input mode of H-11(x/y) and an acoustic flexural wave applied on TMF. This work provides a method for generating CVBs with convenient mode conversion characteristics.
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页数：6
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