摘要
单晶光纤处于光纤和晶体介质之间的特殊结构使其同时具备光纤和晶体介质的优点。单晶光纤的增益高,热管理简单,非线性效应对其影响小,在超短脉冲放大中得到了广泛应用。对单晶光纤放大器在超短脉冲放大中的研究进展进行了综述。介绍了单晶光纤常用的两种制备方法,微拉伸法和激光加热基座法;以提升单晶光纤放大器放大效率的各种方法作为主线,分别介绍了Nd…YAG和Yb…YAG掺杂下的单晶光纤放大器以及一些具有特殊结构的新型单晶光纤放大器在超短脉冲放大中的研究进展;对单晶光纤放大器的应用前景以及未来发展趋势进行了展望。
Owing to the special structure between fiber and crystal, single-crystal fiber has the merits of both fiber and crystal medium. For its advantages of high gain, simple thermal management, and small nonlinear effect, single-crystal fiber is widely used in ultrashort pulse amplification. The experimental research progress in singlecrystal fiber amplifiers is reviewed. Firstly, two kinds of single-crystal fiber preparation methods including micropulling down technique and laser heated pedestal growth technique are introduced. Then along the principal clue of various means to improve the amplification performance of single-crystal fiber amplifiers, we summarize the research progress in Nd： YAG and Yb ： YAG doped single-crystal fiber amplifiers and some new amplifiers with special structures in ultrashort pulse amplification. Finally, the applications and future development trends of singlecrystal fiber amplifiers are prospected.
作者
王雅兰
王庆
Wang Yalan, Wang Qing(Sehool of Optics and Photonies, Beijing Institute of Technology, Beijing 100081, China)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第10期52-62,共11页
Laser & Optoelectronics Progress
基金
北京市自然科学基金(4172056)
国家自然科学基金(61405010)
关键词
光纤光学
单晶光纤
放大器
微拉伸法
激光加热基座法
超短脉冲
fiber optics
single-crystal fiber
amplifier
micro-pulling clown technique
laser heated pedestal growth technique
ultrashort pulse
