A wavelength-tunable narrow-linewidth all-fiber laser with cylindrical vector beam outputs

被引：2

作者：

Song, Huaqing ^{[1
,2
]}

Zhao, Zhongxiang ^{[3
]}

Xian, Lunlun ^{[1
]}

Wang, Dongdong ^{[1
]}

Li, Li ^{[1
,2
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Nanjing Univ Sci & Technol, Adv Launching Cooperat & Innovat Ctr, Nanjing 210094, Jiangsu, Peoples R China

[3] Zhejiang Vocat Acad Art, Dept Film & Televis Technol, Hangzhou 310053, Zhejiang, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2018年 / 428卷

基金：

中国国家自然科学基金;

关键词：

Cylindrical vector beam; Few-mode fiber Bragg grating; Mach-Zehnder interferometer; Ytterbium-doped fiber laser; VORTEX BEAMS; RING; GENERATION;

D O I：

10.1016/j.optcom.2018.07.064

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we experimentally demonstrated wavelength-tunable cylindrical vector beams of very narrow spectral linewidth at similar to 1 mu m with an authentic all-fiber structure for the first time to the best of our knowledge. An ytterbium-doped fiber laser was utilized to initiate the continuous-wave single-longitudinal-mode laser emission, and an off-set splice spot together with a few-mode fiber Bragg grating were used as the mode converter as well as mode selecting output coupler. By adjusting the built-in polarization controllers, radially and azimuthally polarized CVB outputs were both obtained. The central wavelength was at 1053.4 nm with a tuning range of 1.1 nm with thermal control, and two fiber Mach-Zehnder interferometers were cascaded to achieve a 20-dB linewidth of 14.7 kHz.

引用

页码：245 / 250

页数：6

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