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1. 中国科学院安徽光学精密机械研究所 合肥,230031
2. 上海卫星工程研究所 上海,200240
3. 上海航天技术研究院 上海,208109
收稿日期:2013-04-10,
修回日期:2013-06-06,
网络出版日期:2012-10-19,
纸质出版日期:2013-10-15
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杨勇 熊伟 叶擎昊 孙允珠. 空间外差光谱仪系统平场波长定标实验设计与数据处理[J]. 光学精密工程, 2013,21(10): 2508-2512
YANG Yong XIONG Wei YE Qing-hao SUN Yun-zhu. Experimental design and data processing for flat-filed wavelength calibration of spatial heterodyne spectrometer[J]. Editorial Office of Optics and Precision Engineering, 2013,21(10): 2508-2512
杨勇 熊伟 叶擎昊 孙允珠. 空间外差光谱仪系统平场波长定标实验设计与数据处理[J]. 光学精密工程, 2013,21(10): 2508-2512 DOI: 10.3788/OPE.20132110.2508.
YANG Yong XIONG Wei YE Qing-hao SUN Yun-zhu. Experimental design and data processing for flat-filed wavelength calibration of spatial heterodyne spectrometer[J]. Editorial Office of Optics and Precision Engineering, 2013,21(10): 2508-2512 DOI: 10.3788/OPE.20132110.2508.
空间外差光谱技术(SHSSpatial Heterodyne Spectroscopy)综合了光栅衍射与空间调制干涉两种技术特点。仪器的系统平场对应零空间频率干涉条纹,通过改变光栅Littrow角与刻线周期,可以设计为任意波长值。本文探讨了空间外差光谱仪系统平场的定标原理,设计了可调谐激光导入消散斑积分球定标方法及定标装置,定标结果表明仪器的实际平场波长比理论设计值向短波方向漂移了约0.05nm,满足仪器设计要求。
SHS is a novel technology which shares the advantages of grating and spatially modulated interferometry. The zero frequency of SHS produce a flat-field interferogram
and it could be modulated to any wavelength by changing the gratings littrow angle and line density. The principles of zero frequency calibration is discussed in this paper
and a new zero frequency calibration device is presented
which is a integrating sphere eliminating speckle and the tunable laser being introduced. The calibration result suggests that the instruments zero frequency drifted 0.05nm toward shortwave compared to theoretic value
which meet the design requirements.
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