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Multi-wavelength and transversely mode-switchable fiber laser based on ring-core fiber Bragg grating |
| Ya-Jun Jiang(姜亚军)1,†, Yu-Hui Su(苏宇辉)1, Jia-Xin Gao(高嘉欣)1, Feng Zhou(周峰)2, Li-Qin Cheng(程丽琴)3, Kang-Wei Pan(潘康伟)1, Bin-Chuan Sun(孙镔传)1, Li Shen(申力)1, De-Xing Yang(杨德兴)1,‡, and Jian-Lin Zhao(赵建林)1,§ |
1 Shaanxi Key Laboratory of Optical Information Technology, and Key Laboratory of Light-Field Manipulation and Information Acquisition of Ministry of Industry and Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, China;
2 Key Laboratory of Optoelectronic Technology & Systems of Ministry of Education, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China;
3 Hi-Tech College of Xi'an University of Technology, Xi'an 713700, China |
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Abstract A multi-wavelength and transversely mode-switchable fiber laser based on a ring-core fiber Bragg grating (RCFBG) is proposed. Two RCFBGs with high and low reflectivity are inscribed using a femtosecond laser and the phase mask scanning technique, serving as the mirrors in an all-fiber laser linear resonator. Leveraging the polarization dependence of the RCFBG through side exposure, we can readily achieve switchable single-wavelength, dual-wavelength, or triple-wavelength laser outputs by adjusting the polarization controller (PC) inside the resonator. Additionally, three distinct modes, namely, cylindrical vector beam (CVB), fundamental and mixed modes, are successfully obtained in single-wavelength laser operation. Azimuthally or radially polarized lasers can be realized by tuning two PCs inside and outside the resonator while operating in CVB mode. This innovative multi-wavelength and transversely mode-switchable fiber laser based on RCFBGs holds significant potential for applications in wavelength division multiplexing and mode division multiplexing systems.
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Received: 15 February 2025
Revised: 23 March 2025
Accepted manuscript online: 28 March 2025
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PACS:
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42.55.Wd
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(Fiber lasers)
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42.81.Wg
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(Other fiber-optical devices)
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06.60.Jn
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(High-speed techniques)
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07.07.Df
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(Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 62075182) and the National Key Research and Development Program of China (Grant No. 2022YFB3207502). |
Corresponding Authors:
Ya-Jun Jiang, De-Xing Yang, Jian-Lin Zhao
E-mail: yjjiang@nwpu.edu.cn;dxyang@nwpu.edu.cn;jlzhao@nwpu.edu.cn
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Cite this article:
Ya-Jun Jiang(姜亚军), Yu-Hui Su(苏宇辉), Jia-Xin Gao(高嘉欣), Feng Zhou(周峰), Li-Qin Cheng(程丽琴), Kang-Wei Pan(潘康伟), Bin-Chuan Sun(孙镔传), Li Shen(申力), De-Xing Yang(杨德兴), and Jian-Lin Zhao(赵建林) Multi-wavelength and transversely mode-switchable fiber laser based on ring-core fiber Bragg grating 2025 Chin. Phys. B 34 064203
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