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首页> 外文会议>2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications >Far-field detection system for laser beams alignment and crystals alignment
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Far-field detection system for laser beams alignment and crystals alignment

机译：激光束对准和晶体对准的远场检测系统

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摘要

Laser beams far-field alignment is very important for the high power laser facility as well as the frequency doubling crystals adjustment. Traditional beams alignment system and crystals alignment system are separated. That means, they use different optical image systems and CCD cameras, which will occupy larger space and use more money. A new far-field detection system of laser beams is presented with a big diffraction grating (37mm~*37mm), a set of optical imaging components and a high resolution CCD camera. This detection system, which is fully demonstrated on the National Laser Facility of Israel, can align high power laser facility beams' direction as well as the frequency doubling crystals. The new system occupies small space in the spatial filter through off-axial grating sampling. The experimental results indicate that the average far-field alignment error is less than 5% of spatial filter pinhole diameter, and the average crystals' matching angle error is less than 10urad, which meet the alignment system requirements for beams and crystals.
机译：激光束远场对准对于高功率激光设备以及倍频晶体调整非常重要。传统的光束对准系统和晶体对准系统是分开的。也就是说，他们使用不同的光学图像系统和CCD相机，这将占用更大的空间并花费更多的钱。提出了一种新的激光远场检测系统，该系统具有大的衍射光栅（37mm〜* 37mm），一组光学成像组件和高分辨率CCD相机。该检测系统已在以色列国家激光设施上充分展示，可以对准高功率激光设施光束的方向以及倍频晶体。通过离轴光栅采样，新系统在空间滤波器中占据的空间很小。实验结果表明，平均远场对准误差小于空间滤波器针孔直径的5％，平均晶体匹配角误差小于10urad，满足光束和晶体对准系统的要求。

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