高功率固体激光装置哈特曼传感器参考波前标定方法
Calibration of Hartmann-Shack sensor for measurement of wavefront in prototype system
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摘要: 在高功率固体激光驱动器中，参考波前标定是自适应光学系统应用过程中的关键技术之一。基于国内某大型激光原型装置光路特点，对比研究了两种不同的参考波前标定方法，详细分析了两种方法的标定过程和影响标定结果准确性的主要因素，选取了较为准确的参考波前标定结果。基于该参考波前，对AO系统闭环和开环条件下的远场进行了对比测试，实验证明了标定结果的有效性。该研究结果成功应用于该激光原型装置的AO系统波前补偿实验。Abstract: In high power solid-state laser driver, the calibration of reference wavefront is a key technique in the use of adaptive optics system. Based on the optical character of certain laser prototype system, two calibration methods are researched contrastively. Main factors affecting the accuracy of calibration are obtained. Based on the reference wavefront of the more accurate calibration result, the validity of the result is proved by far-field changing before and after AO correction. The result has been successfully used in AO system wavefront correction experiment of this prototype system.
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Key words:
- adaptive optics /
- solid-state laser /
- hartmann wavefront sensor /
- reference wavefront /
- calibration
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