Rao Y J, Zhang W L, Zhu J M, Yang Z X, Wang Z N, Jia X H
Key Laboratory of Optical Fiber Sensing and Communications, Education Ministry of China, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Opt Express. 2012 Sep 24;20(20):22563-8. doi: 10.1364/OE.20.022563.
In this paper, we reported the realization of an ultra-long ring fiber laser (RFL) with hybrid emission related to both random lasing and cavity resonance. Compared with a linear random fiber laser (LRFL), the Rayleigh scattering (RS) inducting distributed feedback effect and the cavity inducting resonance effect exist simultaneously in the laser, which reduces the lasing threshold considerably and provides a hybrid way to form random lasing (RL). The laser output can be purely modeless RL when pump power is high enough. It is also discovered that the laser is insensitive to temperature variation and mechanical disturbance, this is unique and quite different from conventional RFLs which are environmentally unstable due to existence of the cavity modes.
在本文中，我们报道了一种与随机激光和腔共振相关的混合发射的超长环形光纤激光器（RFL）的实现。与线性随机光纤激光器（LRFL）相比，该激光器中瑞利散射（RS）诱导的分布反馈效应和腔诱导的共振效应同时存在，这大大降低了激光阈值，并提供了一种形成随机激光（RL）的混合方式。当泵浦功率足够高时，激光输出可以是纯无模RL。还发现该激光器对温度变化和机械干扰不敏感，这是独特的，与由于腔模的存在而在环境上不稳定的传统RFL有很大不同。
