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Proceedings Paper

Increase of spatial resolution of the optical spectrum analyzer
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Paper Abstract

In this article, the coherent optical spectrum analyzer (COSA), which consists of a spatial light modulator, a Fourier lens and a digital camera is explored. Spatial resolution (spatial spectral resolution), which is determined by the parameters of the components of the spectrum analyzer is one of the main characteristics of the COSA. The analysis of the COSA model allowed to develop a method for calculating the spatial spectral resolution taking into account the phase position of the diffraction maximums relative to the pixels of the matrix detector. When the modulator is illuminated with an inclined plane wave, the resolution of the spectrum analyzer can be doubled. The influence of modulator parameters and lens aberrations on the spectrum analyzer resolution is investigated.

Paper Details

Date Published: 6 February 2020
PDF: 7 pages
Proc. SPIE 11369, Fourteenth International Conference on Correlation Optics, 113690E (6 February 2020);
Show Author Affiliations
V. G. Kolobrodov, National Technical Univ. of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” (Ukraine)
G. S. Tymchik, National Technical Univ. of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” (Ukraine)
M. S. Kolobrodov, National Technical Univ. of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” (Ukraine)


Published in SPIE Proceedings Vol. 11369:
Fourteenth International Conference on Correlation Optics
Oleg V. Angelsky, Editor(s)

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