基于Re:YAG-SiO<sub>2</sub>光纤的单频光纤激光器研究进展（特邀）

基于Re:YAG-SiO₂光纤的单频光纤激光器研究进展（特邀）

摘要: Re:YAG-SiO₂多组分玻璃光纤是以Re:YAG作为纤芯材料，以石英管作为包层材料，采用熔芯法利用拉丝塔在高温下拉制的特种光纤，具有掺杂浓度高、增益大、机械强度高、易与石英光纤熔接等优点，适用于短腔单频光纤激光器。文中介绍了Re:YAG-SiO₂光纤的制备工艺，结合笔者课题组在该领域的研究工作，综述了近年来基于Re:YAG-SiO₂光纤的单频激光技术在1.0 μm，1.5 μm及2.0 μm波段的研究进展，并对Re:YAG-SiO₂光纤的制备及基于该类光纤单频激光器所存在的问题进行了归纳分析，对未来的发展进行了展望。

Abstract: Re:YAG-SiO₂ multicomponent glass fiber is fabricated by a molten core method, in which a Re:YAG is used as the core material and a quartz tube is used as the cladding material. It has the advantages of high doping concentration, high mechanical strength, and is easy to fuse with quartz fiber. Recently, the single-frequency fiber laser has been studied extensively based on the Re:YAG-SiO₂ fiber. In this paper, the development of the Re:YAG-SiO₂ fiber fabrication and the single-frequency laser technology based on Re:YAG-SiO₂ fiber in 1.0 μm, 1.5 μm and 2.0 μm were reviewed. The difficulties and challenges of Re:YAG-SiO₂ fiber fabrication and single-frequency laser based on this type of fiber were also given.