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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 conjugate mirror has the advantages of full cure, low working threshold, high fidelity and non-toxicity, but also has the disadvantage of low light damage threshold. It has an important application prospect in improving the output beam quality of solid-state laser systems, especially high-power solid-state laser systems. The research progress of single core fiber, combined core taper fiber and SBS phase conjugate mirror with fused silica rod and fiber are reviewed. The induced damage, thermal effect and acoustic wave of high repetition rate and high average power laser in fiber are discussed and analyzed. Effect of Field Distribution on the Properties of SBS Phase Conjugate Optical Fiber.