The research on characteristics of acousto-optic tunable filter by space radiation experiment

Rui Xu; Zhi-ping He; Ze-hong Zhang; Zhong-qian Fu; Jian-yu Wang

doi:10.1117/12.902425

15 August 2011 The research on characteristics of acousto-optic tunable filter by space radiation experiment

Rui Xu, Zhi-ping He, Ze-hong Zhang, Zhong-qian Fu, Jian-yu Wang

Proceedings Volume 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications; 819627 (2011) https://doi.org/10.1117/12.902425
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Acousto-optic tunable filter (AOTF) is an electronically tunable optical filter which can make optical beams passing through the acousto-optic (AO) crystal manipulated by suitable frequency generated acoustic waves. In view of the advantages of AO devices such as compact, solid-state, easily integrated, extremely fast response and tunable wavelength output, the AOTF spectrometers have been widely applied in space-based instruments. Considering the operation of the devices in the naturally occurring space radiation environment is one of the major space qualification issues nowadays, the research on characteristics of AOTF in the space radiation environment is significant. Focusing on the space radiation effects on AOTF, especially for radiation environment that lunar exploration infrared imaging spectrometer based on AOTF needs to carry on, the space radiation characteristics of AOTF has been studied through the radiation experiments and the AOTF performance tests. In this paper, some details of AOTF performance tests like detecting principle, method, equipments and performance indicators are introduced firstly. Then the radiation experiment of AOTF is described, while the measured data such as optic transmission, the relationship between diffraction efficiency and driving power, diffraction efficiency and driving frequency, diffraction wavelength and driving frequency relations before and after experiment are analyzed comparatively next. Finally the experimental results are presented and evaluated.

Citation Download Citation

Rui Xu, Zhi-ping He, Ze-hong Zhang, Zhong-qian Fu, and Jian-yu Wang "The research on characteristics of acousto-optic tunable filter by space radiation experiment", Proc. SPIE 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, 819627 (15 August 2011); https://doi.org/10.1117/12.902425

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KEYWORDS

Acousto-optics

Diffraction

Gamma radiation

Transmittance

Crystals

Short wave infrared radiation

Radiation effects

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