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随机分布反馈光纤激光器(RDFFL)是近几年才发展起来的一种新型光纤激光器。它在结构上区别于传统激光器,即无反射镜,激光的反馈通过光纤中随机分布的背向瑞利散射效应实现,因此是一种随机激光器。RDFFL通过光纤中的分布式拉曼散射效应获得增益,可实现稳定的、空间不相干的连续激光输出,被认为是一种重要的新光源,可用于非线性光学、光通信和传感等领域。对RDFFL的研究进展进行了综述,阐明了其工作原理,从理论上分析了其工作特性,并分析了其应用与发展前景。
Randomly distributed feedback fiber laser (RDFFL) is a new type of fiber laser developed in recent years. It is structurally different from the traditional laser, that is, no mirror, the laser feedback through the fiber back to the Rayleigh scattering effect of random distribution, it is a random laser. The RDFFL gains gain through the distributed Raman scattering effect in the fiber for consistent, spatially incoherent continuous laser output and is considered as an important new light source for applications such as nonlinear optics, optical communications and sensing . The research progress of RDFFL is summarized, its working principle is clarified, its working characteristics are analyzed theoretically, and its application and development prospects are analyzed.