基于环形滤波器可调谐单频光纤激光器的研究  

Research of Tunable Single-Frequency Fiber Laser Based on Fiber Ring Filter

作　　者：丁建一 陈浩伟 白晋涛[1,2,3] Ding Jianyi;Chen Haowei;Bai Jintao(State Key Laboratory of Photon-Technology in Western China Energy,Xi'an,Shaanxi 710069,China;International Collaborative Center on Photoelectric Technology and NanoFunctional Materials,Xi'an,Shaanxi 710069,China;Provincial Key Laboratory of Photo-Electronic Technology,Institute of Photonics and Photon-Technology,Northwest University,Xi'an,Shaanxi 710069,China)

机构地区：[1]西部能源光子技术国家重点实验室培育基地,陕西西安710069 [2]国家级光电技术与纳米功能材料国际联合研究中心,陕西西安710069 [3]陕西省光电子技术重点实验室,西北大学光子学与光子技术研究院,陕西西安710069

出　　处：《激光与光电子学进展》2021年第13期358-363,共6页Laser & Optoelectronics Progress

基　　金：国家重点研发计划(2017YFB0405102)。

摘　　要：设计了一种非对称环形复合谐振腔,将光纤环行器、光纤可调谐滤波器和光纤环形滤波器分别嵌入到主环形腔内,基于游标效应的原理,实现了调谐范围1020~1090 nm的高效、稳定可调谐单频光纤激光器。采用980 nm半导体激光器作为泵浦源,在中心波长1064 nm处,当泵浦功率为200 mW时,利用延迟自外差法测得单频激光的输出线宽为3.325 kHz,光信噪比均大于50 dB,以5 min为间隔,40 min内测得输出激光波长稳定性为0.02 nm。In this work, a tunable single-frequency fiber laser with asymmetric compound ring cavity is designed.Fiber ring resonator, fiber optic tunable filter, and fiber ring filter are respectively embedded into the main fiber ring cavity. An efficient and stable tunable single-frequency fiber laser from 1020 nm to 1090 nm is achieved based on the principle of the vernier effect. A 980 nm semiconductor laser is used as the pump source, when the pump power is200 mW, the output linewidth of the single-frequency laser measured by the delayed self-heterodyne method is3. 325 kHz, and the optical signal-to-noise ratio is greater than 50 dB, with 5 min as the interval, the measured output laser wavelength stability is 0. 02 nm within 40 min.

关 键 词：激光器 单频光纤激光器 波长可调谐 游标效应 滤波器 

分 类 号：O436[机械工程—光学工程]