高平均功率光纤受激布里渊散射相位共轭镜的研究与探讨  

Investigation and Discussion on High Average-Power Fiber Stimulated Brillouin Scattering Phase-Conjugation Mirror

作　　者：葛传文[1] 肖爽[1] 

机构地区：[1]中国人民解放军陆军军官学院光电工程实验室,安徽合肥230031

出　　处：《激光与光电子学进展》2015年第7期15-21,共7页Laser & Optoelectronics Progress

基　　金：安徽省自然科学基金(1208085MF100)

摘　　要：光纤受激布里渊散射(SBS)相位共轭镜具有全固化、工作阈值低、保真度高、无毒性等优点,但同时也存在光损伤阈值低的缺点。在改善固体激光系统,尤其是高平均功率固体激光系统的输出光束质量方面,具有重要应用前景。综述了单一芯径光纤、组合芯径锥度光纤以及熔石英棒与光纤组合SBS相位共轭镜的研究进展,探讨并分析了高重复频率、高平均功率激光在光纤中的诱导损伤、热效应以及声波场分布对光纤SBS相位共轭镜特性的影响。Fiber stimulated Brillouin scattering （SBS） phase-conjugation mirrors （PCM） are used for improving higher average-power solid-state laser＇s beam quality, due to their advantages in all solid-state, low power threshold, high fidelity and no toxicity. On the other hand, these fiber SBS-PCMs have the disadvantage of low laser damageresistant threshold, which limits their applications in high power laser systems. The research progress of various fiber SBS-PCMs is introduced, including single-core diameter fiber, fused silica rod-fiber combination, tapered fiber. The influence of laser-induced damage, laser thermal effects, acoustic wave field distribution of high repetition rate and high average power laser, on the characteristics of fiber SBS-PCMs is discussed.

关 键 词：非线性光学 受激布里渊散射 光纤相位共轭镜 激光诱导损伤 激光热效应 声波场分布 

分 类 号：O437[机械工程—光学工程] TN24[理学—光学]