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Proceedings Paper

A compact LWIR imaging spectrometer with a variable gap Fabry-Perot interferometer
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Paper Abstract

Fourier transform spectroscopy is a widely employed method for obtaining spectra, with applications ranging from the desktop to remote sensing. The long wave infrared (LWIR) interferometric spectral imaging system is always with huge volume and large weight. In order to miniaturize and light the instrument, a new method of LWIR spectral imaging system based on a variable gap Fabry-Perot (FP) interferometer is researched. With the system working principle analyzed, theoretically, it is researched that how to make certain the primary parameter, such as, the reflectivity of the two interferometric cavity surfaces, field of view (FOV) and f-number of the imaging lens. A prototype is developed and a good experimental result of CO2 laser is obtained. The research shows that besides high throughput and high spectral resolution, the advantage of miniaturization is also simultaneously achieved in this method.

Paper Details

Date Published: 28 February 2017
PDF: 8 pages
Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102562W (28 February 2017); doi: 10.1117/12.2257646
Show Author Affiliations
Fang Zhang, Xi'an Institute of Applied Optics (China)
Jiaobo Gao, Xi'an Institute of Applied Optics (China)
Nan Wang, Xi'an Institute of Applied Optics (China)
Yujie Zhao, Xi'an Institute of Applied Optics (China)
Lei Zhang, Xi'an Institute of Applied Optics (China)
Shan Gao, Xi'an Institute of Applied Optics (China)


Published in SPIE Proceedings Vol. 10256:
Second International Conference on Photonics and Optical Engineering
Chunmin Zhang; Anand Asundi, Editor(s)

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