中文题目: 基于相位调制的单次曝光波前测量在高功率激光驱动器中的应用
外文题目: Applications of Iterative Algorithm Based on Phase Modulation in High Power Laser Facilities
作者: 潘兴臣; 陶华; 刘诚; 朱健强
刊名: 中国激光
年: 2016 卷: 43 期: 1 页： 108001
中文关键词:
相干光学; 测量; 衍射; 成像系统
英文关键词:

coherence optics; measurement; diffraction; imaging systems
中文摘要:
基于相位调制的迭代算法被用于高功率激光驱动器的波前在线测量和大口径光学元件的离线检测,该算法只需要单幅衍射光斑和一块分布已知的随机相位板,利用图形处理器(GPU)硬件加速后可在30 s以内完成迭代计算,并且集成后结构紧凑,基本可放置于高功率激光驱动器的任意位置。基于该方法完成了焦斑预测和对比实验,在现有高功率激光驱动器中对种子光的波前分布进行了在线测量,同时实现连续相位板(CPP)的离线检测。相关实验表明,该算法能够用于解决高功率激光驱动器中焦斑预测、波前在线恢复和大口径光学元器件检测的问题,具有广泛的适

英文摘要:
Coherent modulation imaging (CMI) based algorithm has been employed for on- shot laser beam diagnostics in high power laser facility and off- line measurement of large- scale optic element. A single- shot intensity measurement is sufficient for wave-front reconstruction after the random phase plate has been accurately pre- characterized, and the iteration process can be finished in 30 seconds with the acceleration of graphics processing unit (GPU) device. Furthermore, a compact structure is also available after combining CCD and phase plate together, which can be placed almost anywhere of high power laser facilities. Series of experiments have been finished for focal-spot prediction, measurement of large-scale continuous phase plate, and on-shot wave-front reconstruction of seed pulse in our high power laser facility with amplifiers turned off. The flexibility of CMI for focal- spot prediction, on- shot wave- front diagnostic and off- line measurement of optic elements has been demonstrated for its characteristic. It has significant influence on the development of high power laser facilities as a new method for wave-front measurement and diagnostics.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCDEI
DOI: 10.3788/CJL201643.0108001


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