SIOM OpenIR  > 中科院强激光材料重点实验室
New ITF measure method based on fringes
Fang, Qiaoran; Liu, Shijie; Gao, Wanrong; Zhou, You; Liu, HuanHuan; 1016436289@qq.com
2016
Source PublicationSELECTED PAPERS OF THE PHOTOELECTRONIC TECHNOLOGY COMMITTEE CONFERENCES HELD NOVEMBER 2015
ISSN0277-786X
Department材料
AbstractWith the unprecedented developments of the intense laser and aerospace projects', the interferometer is widely used in detecting middle frequency indicators of the optical elements, which put forward very high request towards the interferometer system transfer function (ITF). Conventionally, the ITF is measured by comparing the power spectra of known phase objects such as high-quality phase step. However, the fabrication of phase step is complex and high-cost, especially in the measurement of large-aperture interferometer. In this paper, a new fringe method is proposed to measure the ITF without additional objects. The frequency was changed by adjusting the number of fringes, and the normalized transfer function value was measured at different frequencies. The ITF value measured by fringe method was consistent with the traditional phase step method, which confirms the feasibility of proposed method. Moreover, the measurement error caused by defocus was analyzed. The proposed method does not require the preparation of a step artifact, which greatly reduces the test cost, and is of great significance to the ITF measurement of large aperture interferometer.
Language英语
Document Type会议论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27407
Collection中科院强激光材料重点实验室
Corresponding Author1016436289@qq.com
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Fang, Qiaoran,Liu, Shijie,Gao, Wanrong,et al. New ITF measure method based on fringes[C],2016.
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