中国激光, 2006, 33 (10): 1365, 网络出版: 2006-10-31   

扰动对非稳腔模式的影响和腔内倾斜像差校正

Effect of Intracavity Perturbation on Mode Properties and Tilt Aberration Correction for Unstable Resonators
作者单位
中国科学院光电技术研究所, 四川 成都 610209
摘要
采用哈特曼-夏克(Hartmann-Shack)波前传感器分析了腔内扰动对无源正支共焦腔调腔光模式的影响,用模式法进行了波前复原计算。引入等量扰动,腔内凹镜对于腔模的影响大于凸镜;且对于大菲涅耳数非稳腔,腔内倾斜扰动量与输出光束中查涅克(Zernike)倾斜像差系数具有较好线性关系。建立了基于哈特曼-夏克波前传感器进行腔外探测,控制腔内凹镜的低阶像差校正系统,比较了在不同腔内扰动状态下对倾斜像差的控制结果。实验表明,对于腔内扰动频率较低或者准静态的情况,控制系统对腔内倾斜像差的校正具有较好的效果。
Abstract
Influence of intracavity tilt perturbation on the outcoupled mode of positive-branch confocal unstable resonators is analyzed by adopting Hartmann-Shack (H-S) wavefront sensor method, and the wavefront recovery calculation is performed. The relations of intracavity perturbation and aberration properties of mode are presented. The intracavity perturbation of the concave mirror has more remarkable effect on outcoupled beam-quality than that of the convex mirror by introducing equivalent perturbation. For a large Fresnel-number resonator, the tilt angle of intracavity mirror has a near linear relation with Zernike tilt coefficient of the output beam. A system for intracavity tilt aberration correction based on H-S wavefront sensor is established to correct low order aberration by control the concave mirror, and the aberration-corrected results are compared. For a small and slow intracavity perturbation, the correction for tilt aberration can reach a satisfied level.
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张翔, 杨伟, 胡诗杰, 柳建, 许冰. 扰动对非稳腔模式的影响和腔内倾斜像差校正[J]. 中国激光, 2006, 33(10): 1365. 张翔, 杨伟, 胡诗杰, 柳建, 许冰. Effect of Intracavity Perturbation on Mode Properties and Tilt Aberration Correction for Unstable Resonators[J]. Chinese Journal of Lasers, 2006, 33(10): 1365.

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