1.6-μm single-frequency erbium-doped fiber laser based on two cascaded subrings

被引：7
作者：
Zhai, Yaqi [1 ,2 ]
Wen, Han [1 ,2 ]
Chen, Haowei [1 ,2 ]
Lu, Baole [1 ,2 ]
Bai, Jintao [1 ,2 ]
机构：
[1] Northwest Univ, Inst Photon & Photon Technol, Int Collaborat Ctr Photoelect Technol & Nano Funct, State Key Lab Photon Technol Western China, Xian 710127, Peoples R China
[2] Northwest Univ, Shaanxi Engn Technol Res Ctr Solid State Lasers &, Shaanxi Prov Key Lab Photo Elect Technol, Xian 710127, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2024年 / 22卷 / 04期
关键词：
erbium-doped fiber laser; two cascaded subrings; single frequency; RING-CAVITY;
D O I：
10.3788/COL202422.041406
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a stable narrow linewidth single-frequency erbium-doped fiber laser (EDFL) operating at 1.6 mu m. A Fabry- Perot fiber Bragg grating and two cascaded subrings are incorporated in the main ring cavity to achieve singlefrequency operation. The experimentally measured optical signal-to-noise ratio is greater than 73 dB. Furthermore, the linewidth of the EDFL is measured to be about 480 Hz by the self-built short-delayed self-heterodyne interferometry device. The laser shows superior stability, with no mode-hopping during the 60-min observation period. The proposed EDFL provides a new experimental idea for realizing a single-frequency fiber laser in the L-band.
引用
收藏
页数：6
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