| 声光可调谐滤波器(AOTF)消色散设计 |
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| 引用本文： | 常凌颖,赵葆常,邱跃洪,汶德胜.声光可调谐滤波器(AOTF)消色散设计[J].光子学报,2009,38(11). |
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| 作者姓名： | 常凌颖 赵葆常 邱跃洪 汶德胜 |
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| 作者单位： | 1. 中国科学院西安光学精密机械研究所,西安,710119;中国科学院研究生院,北京,100049
2. 中国科学院西安光学精密机械研究所,西安,710119 |
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| 基金项目： | 863-AOTF偏振光谱成像仪原理样机2006AAl2Z133以及西部之光联合学者项目 |
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| 摘 要： | 介绍了非共线声光可调谐滤波器的构成及基本原理,计算了非共线声光可调谐滤波器衍射出的±1级衍射偏振光的偏转角,采用在光路中添加光楔的方法补偿非共线声光可调谐滤波器晶体色散引起的图像漂移.分析结果表明使用TeO_2材料设计的光楔在楔角为7.6°的时候可以控制图像漂移在一个像元以内,并在400～900 nm的工作波段范围内满足稳定成像的要求.
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| 关 键 词： | 光学 声光可调谐滤波器 光楔 |
Eliminate Chromatic Aberrations for Acousto-optic Tunable Filter |
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| CHANG Ling-ying,ZHAO Bao-chang,QIU Yue-hong,WEN De-sheng.Eliminate Chromatic Aberrations for Acousto-optic Tunable Filter[J].Acta Photonica Sinica,2009,38(11). |
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| Authors: | CHANG Ling-ying ZHAO Bao-chang QIU Yue-hong WEN De-sheng |
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| Abstract: | The structure and basic principle of non-collinear acousto-optic tunable filter are introduced,and the deviation angle of ± 1 orders diffraction polarized light for non-collinear acousto-optic tunable filter (AOTF) are studied theoretically. By means of adding optical wedge in the light way,the crystal dispersion of non-collinear acousto-optic tunable filter can be compensated, which caused image shift. The results show that the optical wedge of TeO_2 material at 7.6° wedge angle can control scene shift less than one pixel,and over the wavelength range of 400～900 nm the filter is able to achieve scene stability, |
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| Keywords: | TeO_2 Optical Acousto-optic tunable filter TeO_2 Optical wedge |
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