激光与光电子学进展, 2020, 57 (7): 071401, 网络出版: 2020-03-31
一种基于分布反馈光纤激光器的超窄线宽布里渊光纤激光器 下载: 1297次
An Ultra-Narrow Linewidth Brillouin Fiber Laser Based on Distributed Feedback Fiber Laser
摘要
介绍了一种基于分布反馈光纤激光器的超窄线宽布里渊光纤激光器。采用布里渊环形腔结构,以分布式反馈光纤激光器作为布里渊泵浦光源,以输出波长为980nm的半导体激光器作为腔内掺铒激光放大的泵浦光源,实现了超窄线宽的布里渊激光输出。布里渊环形腔腔长为10 m,加偏振控制后可获得单频布里渊激光输出。为保证激光器的单纵模输出,分布反馈光纤激光器和半导体激光器泵浦光源功率应分别不低于20 mW和50 mW。泵浦光源输出功率最大为250 mW时,最终布里渊激光输出功率超过15 mW,线宽可小于100 Hz。
Abstract
This paper introduces an ultra-narrow linewidth Brillouin fiber laser based on distributed feedback fiber laser. By constructing a Brillouin ring cavity structure, a distributed feedback fiber laser is used as the Brillouin pump, a 980 nm semiconductor laser is used as the pump source for the intra-cavity erbium-doped laser amplification, thereby the Brillouin laser output with ultra-narrow linewidth is achieved. The Brillouin ring cavity is about 10 meters long, and a single longitudinal mode Brillouin laser is obtained with a proper polarization control. To ensure the single longitudinal mode laser output, the power of the distributed feedback fiber laser and the 980 nm pump source should be no less than 20 mW and 50 mW, respectively. With the output power of the pump source up to 250 mW, the final Brillouin laser output power exceeds 15 mW, and the linewidth is estimated to be less than 100 Hz.
李亚方, 王春雨, 祁海峰, 李鲁艳, 时书华, 倪家升, 赵燕杰. 一种基于分布反馈光纤激光器的超窄线宽布里渊光纤激光器[J]. 激光与光电子学进展, 2020, 57(7): 071401. Yafang Li, Chunyu Wang, Haifeng Qi, Luyan Li, Shuhua Shi, Jiasheng Ni, Yanjie Zhao. An Ultra-Narrow Linewidth Brillouin Fiber Laser Based on Distributed Feedback Fiber Laser[J]. Laser & Optoelectronics Progress, 2020, 57(7): 071401.