CAJ | 학술논문

提出一种超窄线宽双向反馈的多波长布里渊光纤激光器。一个2×2的3 dB耦合器连接10 km的普通的单模光纤（SMF）作为布里渊增益环，分布反馈式半导体激光器作为布里渊抽运源，两个光环行器实现多波长激光的输出和反馈，没有加入掺铒光纤线性增益结构。当布里渊功率为80 mW时，在10 km单模光纤中产生受激布里渊散射效应，而获得反向传输的多阶斯托克斯光。不包括抽运光，共观察到12个波长的斯托克斯光输出，波长间隔为0.088 nm，输出激光线宽达300 kHz。
제출일충초착선관쌍향반궤적다파장포리연광섬격광기。일개2×2적3 dB우합기련접10 km적보통적단모광섬（SMF）작위포리연증익배，분포반궤식반도체격광기작위포리연추운원，량개광배행기실현다파장격광적수출화반궤，몰유가입참이광섬선성증익결구。당포리연공솔위80 mW시，재10 km단모광섬중산생수격포리연산사효응，이획득반향전수적다계사탁극사광。불포괄추운광，공관찰도12개파장적사탁극사광수출，파장간격위0.088 nm，수출격광선관체300 kHz。
A multi-wavelength Brillouin fiber laser with ultra-narrow line-width bidirectional feedback is intro-duced. A 10 km long single-mode fiber (SMF) connected with a 2 × 2 3 dB coupler is used as the Brillouin gain ring and a distributed feedback (DFB) semiconductor laser is taken as the Brillouin pump (BP). The output and feedback of multi-wavelength lasers are realized by two optical circulators without adding erbium-doped fiber linear gain structure. At the Brillouin pump power of 80 mW, stimulated Brillouin scattering is produced in 10 km long single-mode fiber (SMF). Therefore, multi-order Stokes reflection lights can be obtained. Stokes light output of 12 wavelengths with 0.088 nm wavelength spacing and 300 kHz output laser line width is observed except BP.