Study on measurement of medium and low spatial wavefront errors of long focal length lens 被引量：1

Study on measurement of medium and low spatial wavefront errors of long focal length lens

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摘要 High-power laser system has a requirement for the medium and low spatial wavefront errors of the transmitted wavefront of the spatial filter, which is a spherical lens with long focal length （〉 10 m） and large aperture （〉 400×400 （mm））. Two interferometric methods are analyzed and compared for testing the medium and low spatial wavefront errors of the long focal length lens with an instantaneous interferometer, using large aperture plane mirror and concave mirror as retrofleetors, respectively. The two kinds of beam path arrangements are designed using ray tracing method. Wavefront aberration and modulation transfer function are used as merit functions. The reason for their different ability to test the wavefront is also analyzed. To evaluate the feasibility of test methods, tolerances analyses are performed to determine the tolerances demanding the fabrication and assembly of each optical element. It is proved that a relatively short optical path with a large aperture concave mirror is satisfied for testing the medium and low spatial wavefront errors of the transmitted wavefront of the spatial filter. High-power laser system has a requirement for the medium and low spatial wavefront errors of the transmitted wavefront of the spatial filter, which is a spherical lens with long focal length （〉 10 m） and large aperture （〉 400×400 （mm））. Two interferometric methods are analyzed and compared for testing the medium and low spatial wavefront errors of the long focal length lens with an instantaneous interferometer, using large aperture plane mirror and concave mirror as retrofleetors, respectively. The two kinds of beam path arrangements are designed using ray tracing method. Wavefront aberration and modulation transfer function are used as merit functions. The reason for their different ability to test the wavefront is also analyzed. To evaluate the feasibility of test methods, tolerances analyses are performed to determine the tolerances demanding the fabrication and assembly of each optical element. It is proved that a relatively short optical path with a large aperture concave mirror is satisfied for testing the medium and low spatial wavefront errors of the transmitted wavefront of the spatial filter.

作者金春祥刘世杰周游徐学科魏朝阳邵建达

机构地区 Shanghai Institute of Optics and Fine Mechanics University of the Chinese Academy of Sciences

出处《Chinese Optics Letters》 SCIE EI CAS CSCD 2014年第A02期48-54,共7页 中国光学快报（英文版）

基金 This work was supported by the National Natural Science Foundation of China under Grant No. 11104295.

分类号 O439 [机械工程—光学工程] TB852.1 [一般工业技术—摄影技术]

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