激光与光电子学进展, 2015, 52 (6): 070002, 网络出版: 2015-06-19
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
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 nonlinear optics stimulated Brillouin scattering fiber phase-conjugation mirror laser-induced damage laser thermal effects acoustic field distribution
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。
Abstract
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.
葛传文, 肖爽. 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[J]. 激光与光电子学进展, 2015, 52(6): 070002. Ge Chuanwen, Xiao Shuang. Investigation and Discussion on High Average-Power Fiber Stimulated Brillouin Scattering Phase-Conjugation Mirror[J]. Laser & Optoelectronics Progress, 2015, 52(6): 070002.