大口径高通量验证实验平台片状放大器增益均匀性实验研究  

Measurement on Gain Uniformity of Slab Amplifiers on Integration-Test-Bed

作　　者：刘勇[1] 陈远斌[1] 郝欣[1] 谢旭东[1] 赵军普[1] 陈林[1] 李森[1] 梁樾[1] 郑奎兴[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《光学学报》2015年第A02期100-103,共4页Acta Optica Sinica

摘　　要：惯性约束聚变（ICF）激光驱动器中，准确测定片状放大器系统增益均匀性是装置系统设计的基础。本文基于CCD成像法实验测量了我国第一台单束输出能量超过万焦耳的ICF激光驱动器一大口径高通量验证实验平台片状放大器在5．28％／cm高增益情况下的增益均匀性。实验结果表明，在平均小信号增益系数为5．28％／cm情况下，通光口径范围内增益均匀性为1．09：1（最大值／平均值），360mm×360mm光束口径范围内增益均匀性为1．06：1，满足装置19．6kJ／5ns大能量输出设计要求。In inertial confinement fusion（ICF） laser facility, accurate measurement of the gain uniformity of disk amplifiers is the basis for device design. Based on CCD imaging method, the gain uniformity of disk amplifiers with the average small-signal gain coefficient is measured about 5.28%/cm on integration-test-bed（ITB） laser facility, which is the first laser facility with ten thousand joules output in single beam. Experimental results show that when the average small-signal gain coefficient is 5.28%/cm, the gain uniformity is 1.09：1 （maximum/average） within the aperture range, and within the range of 360 mm × 360 mm laser beam, the gain uniformity is about 1. 06 ： 1 （maximum/average）, which satisfied the 19.6 kJ/5 ns laser output on ITB laser facility.

关 键 词：激光器 片状放大器 增益均匀性 CCD成像法 实验测量 

分 类 号：O436[机械工程—光学工程]