中国激光, 2012, 39 (2): 0202005, 网络出版: 2012-01-06
基于光纤环形镜的掺磷光纤拉曼激光器
Phosphosilicate Fiber Raman Laser Based on Fiber Loop Mirror
激光器 掺磷光纤拉曼激光器 光纤环形镜 光纤布拉格光栅 光泄漏 lasers phosphosilicate Raman fiber laser fiber loop mirror fiber Bragg gratings optical leakage
摘要
报道了一种由宽带光纤环形镜(FLM)作为腔反射元件的法布里珀罗腔掺磷光纤拉曼激光器(RFL)，并与使用窄带光纤布拉格光栅(FBG)作为高反镜的腔结构进行了对比研究。研究结果表明，使用宽带FLM替代FBG仍可实现掺磷RFL的窄带激光输出，并且可有效避免拉曼激光从高反镜端的泄漏。在相同的输出镜反射率情况下，使用FLM作为高反镜比使用FBG作为高反镜具有更低的振荡阈值和更高的光光转换效率。当抽运功率为9.45 W时，拉曼激光(1.24 μm)输出功率为4.31 W，激光器斜效率和光光转换效率分别为57.9%和45.6%。
Abstract
A phosphosilicate Raman fiber laser (RFL) with Fabry-Perot cavity consisting of a pair of wide-band fiber loop mirrors (FLM) is proposed. A narrow-band fiber Bragg gratings (FBG) is used as a highly-reflective mirror in the same experimental configuration. The results show that the adoption of phosphosilicate RFL with FLM as a highly-reflective mirror instead of FBG can obtain laser output with narrow bandwidth and decrease the optical leakage from the highly-reflective mirror effectively. With the same output mirror, the laser using FLM as its highly-reflective mirror demonstrates a lower threshold and higher conversion efficiency than the one using FBG as the highly-reflective mirror. The output power of the laser at 1.24 μm is up to 4.31 W while the incident pump power is 9.45 W, the slope efficiency is 57.9% and optical-optical conversion efficiency is 45.6%.
刘鹏, 黄朝红, 漆伟, 罗正钱, 许惠英, 蔡志平. 基于光纤环形镜的掺磷光纤拉曼激光器[J]. 中国激光, 2012, 39(2): 0202005. Liu Peng, Huang Chaohong, Qi Wei, Luo Zhengqian, Xu Huiying, Cai Zhiping. Phosphosilicate Fiber Raman Laser Based on Fiber Loop Mirror[J]. Chinese Journal of Lasers, 2012, 39(2): 0202005.
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