28 October 1996 Optical alignment monitoring and stabilization using a liquid crystal television (LCTV)
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Abstract
Maintenance of laser beam alignment in optical systems is highly desirable for effective operation. In this paper, a LCTV-based alignment preserving scheme is discussed. We show that a laser beam can be aligned automatically to an accuracy of less than plus or minus 2 micrometer using a LCTV with an average pixel pitch of 85 micrometer. Due to simplicity and low cost, the proposed scheme is attractive for use in laser based optical systems that are used on airborne platforms.
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Narasimha S. Prasad, Narasimha S. Prasad, Sean M. Doyle, Sean M. Doyle, Michael K. Giles, Michael K. Giles, } "Optical alignment monitoring and stabilization using a liquid crystal television (LCTV)", Proc. SPIE 2810, Space Sciencecraft Control and Tracking in the New Millennium, (28 October 1996); doi: 10.1117/12.255134; https://doi.org/10.1117/12.255134
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