中国激光, 2018, 45 (7): 0701005, 网络出版: 2018-09-11
基于相移光纤光栅的光纤环形腔激光器不稳定现象的研究 下载: 748次
Instability of Optical Fiber Ring Cavity Laser Based on Phase Shift Fiber Grating
光纤光学 相移光纤光栅 光热效应 环形腔 窄线宽 fiber optics phase-shift fiber grating photothermal effect ring cavity narrow linewidth
摘要
提出一种基于半导体光放大器(SOA)的光纤环形激光器,在一定范围内可以实现激光的单频输出,同时在该激光器中发现一种新的脉冲不稳定现象,这种不稳定现象与电流调节方向有关。分析和对比实验表明,产生这种现象是由相移光纤光栅的光热效应所致,减弱光热效应可以使得激光器输出更加稳定。
Abstract
A fiber-optic ring laser based on semiconductor optical amplifier (SOA) is proposed. In a certain range, a single frequency output of the laser can be realized. At the same time, a new pulse instability phenomenon is found in the laser. This instability phenomenon and current regulation direction is related. The analysis and comparison experiments show that this phenomenon is caused by the photothermal effect of phase-shifted fiber gratings, and weakening the photothermal effect can make the laser output more stable.
施展, 丁孟, 陈迪俊, 王迪, 魏芳, 张茜, 李璇, 蔡海文. 基于相移光纤光栅的光纤环形腔激光器不稳定现象的研究[J]. 中国激光, 2018, 45(7): 0701005. Zhan Shi, Meng Ding, Dijun Chen, Di Wang, Fang Wei, Xi Zhang, Xuan Li, Haiwen Cai. Instability of Optical Fiber Ring Cavity Laser Based on Phase Shift Fiber Grating[J]. Chinese Journal of Lasers, 2018, 45(7): 0701005.