高功率固体激光装置的B积分判据探究  

B-Integral Criteria for High Power Solid-State Laser Facility

作　　者：黄晚晴[1] 张颖[1] 孙喜博 耿远超[1] 王文义[1] 刘兰琴[1] Huang Wanqing;Zhang Ying;Sun Xibo;Geng Yuanchao;Wang Wenyi;Liu Lanqin(Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang,Sichuan 621900,China)

机构地区：[1]中国工程物理研究院激光聚变研究中心

出　　处：《激光与光电子学进展》2019年第12期148-153,共6页Laser & Optoelectronics Progress

基　　金：四川省学术和技术带头人培养资金资助

摘　　要：B积分判据自从建立后,一直是大型激光驱动器控制非线性效应的基本设计判据。综述了针对国家点火装置建立两个B积分判据的实验过程和模拟过程,解释了B积分判据的原理和产生条件,指出了B积分判据的适用性以及存在的问题,得出了两个B积分判据并不完善的结论。要准确地确定适用于当前大型高功率固体激光装置的B积分判据,应当综合考虑当前激光装置的实际条件,开展相应的实验和模拟。Since the establishment of the B-integral criterion,it has been a basic design criterion for the nonlinear effect control in large laser drivers.Through an overview of the experimental and simulation processes for establishing two B-integral criteria in the national ignition facility,we explain the principle and the creation conditions of the B-integral criteria,and point out the applicability and the existing problems of the B integral criteria.It is concluded that the two B-integral criteria are imperfect.In order to accurately determine the B-integral criteria applicable to the current large high power solid-state laser devices,the actual conditions of the current laser devices should be comprehensively considered and the corresponding experiments and simulations should be conducted.

关 键 词：激光光学 非线性效应 B积分判据 光束质量 焦斑 

分 类 号：O436[机械工程—光学工程]