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

作　　者：翟雅琦 文瀚 陈浩伟 陆宝乐 白晋涛 Yaqi Zhai;Han Wen;Haowei Chen;Baole Lu;Jintao Bai(State Key Laboratory of Energy Photon-Technology in Western China,International Collaborative Center on Photoelectric Technology and Nano Functional Materials,Institute of Photonics&Photon-Technology,Northwest University,Xi’an 710127,China;Shaanxi Engineering Technology Research Center for Solid State Lasers and Application,Shaanxi Provincial Key Laboratory of Photo-electronic Technology,Northwest University,Xi’an 710127,China)

机构地区：[1]State Key Laboratory of Energy Photon-Technology in Western China,International Collaborative Center on Photoelectric Technology and Nano Functional Materials,Institute of Photonics&Photon-Technology,Northwest University,Xi’an 710127,China [2]Shaanxi Engineering Technology Research Center for Solid State Lasers and Application,Shaanxi Provincial Key Laboratory of Photo-electronic Technology,Northwest University,Xi’an 710127,China

出　　处：《Chinese Optics Letters》2024年第4期77-82,共6页中国光学快报（英文版）

基　　金：supported by the Shaanxi Key Science and Technology Innovation Team Project(No.2023-CX-TD-06)。

摘　　要：We demonstrate a stable narrow linewidth single-frequency erbium-doped fiber laser(EDFL)operating at 1.6μm.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.

关 键 词：erbium-doped fiber laser two cascaded subrings single frequency 

分 类 号：TN248[电子电信—物理电子学]