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Digital holographic interferometer with correction of distortions
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Paper Abstract

The article considers the use of holographic interferometer to overwrite the holograms for distortion correction. Each optical system contains some deviations of the beam path, called aberrations of the optical system. They are considered in the resulting interference figure as a distortion of the bands. While increasing the sensitivity of the interference pattern, new aberrations caused by re-registration of the installation in addition to the aberrations already presented on the interferogram caused by the initial record, also multiplied by N times, are introduced N times. In this experiment we decided to use a modified setup with spatially combined interferograms with use of reflective SLM (spatial light modulator) LETO and digital image handling of the interferograms recorded by CCD or CMOS camera.

Paper Details

Date Published: 22 October 2018
PDF: 6 pages
Proc. SPIE 10799, Emerging Imaging and Sensing Technologies for Security and Defence III; and Unmanned Sensors, Systems, and Countermeasures, 107990A (22 October 2018); doi: 10.1117/12.2326531
Show Author Affiliations
Nikolay Balbekin, ITMO Univ. (Russian Federation)
Nikolay Petrov, ITMO Univ. (Russian Federation)
Sergey Pul'kin, Saint Petersburg State Univ. (Russian Federation)
Alexander Sevruygin, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Vladislav Shoev, Saint Petersburg State Univ. (Russian Federation)
Ibrohim Tursunov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Dmitrii Venediktov, Saint Petersburg State Univ. (Russian Federation)
Vladimir Venediktov, Saint Petersburg State Univ. (Russian Federation)
Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)


Published in SPIE Proceedings Vol. 10799:
Emerging Imaging and Sensing Technologies for Security and Defence III; and Unmanned Sensors, Systems, and Countermeasures
Gerald S. Buller; Markus Mueller; Richard C. Hollins; Robert A. Lamb, Editor(s)

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