板条激光模块热致波前畸变自校正设计  

Self-Correction Design for Thermal-Induced Wavefront-Distortion in Slab Laser Module

作　　者：刘亮 王姗姗[4] 黄秀军 徐红艳 宋镇江 石德乐 

机构地区：[1]山东航天电子技术研究所,山东烟台264670 [2]国防科技大学光电科学与工程学院,湖南长沙410073 [3]海军航空工程学院控制工程系,山东烟台264001 [4]烟台工贸技师学院,山东烟台264001

出　　处：《激光与光电子学进展》2017年第11期239-244,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61205206);航天科技集团第五研究院创新基金

摘　　要：为了解决板条激光器输出激光光束质量不高的问题,建立了激光在板条激光模块中沿"之"字形光路传输时的热致波前畸变模型。对热致波前畸变的分布特点进行了研究,并提出了一种减小热致波前畸变的方法。数值仿真结果表明,通过合理的光路设计,优化激光以同一角度两次进入板条介质时的位置偏移量,可以达到减小板条厚度方向上热致波前畸变的目的。In order to solve the problem of poor output beam quality of slab lasers, we establish a thermal-induced wavefront-distortion model of the, lasers transfer along zigzag in slab laser module. Distribution characteristics of thermal-induced wavefront-distor,tion are studied and a method for reducing thermal-induced wavefront-distortion is proposed. Numerical simulation results show that the position offsets of laser beam propagating through the slab medium twice at the same angle can be optimized to eliminate the thermal-induced wavefront-distortion in thickness direction of slab with the help of reasonable optical path design.

关 键 词：激光光学 热效应 激光放大器 波前畸变 自校正 

分 类 号：TN248.1[电子电信—物理电子学]