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Optical Engineering

Measurement of optical misalignment using wavefront sensing
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Paper Abstract

A method for measurement of misalignment in an optical system using wavefront sensing in a two-lens telescopic system is reported. Using Shack-Hartmann wavefront sensor data and ABCD matrix, mapping between Zernike coefficients with known misalignment of optical system is carried out. Results are validated experimentally using a two-lens telescopic system, and then compared with simulated values of a Ritchey-Chretien telescopic system for measuring misalignment. Also, it was demonstrated that ABCD matrix can only work for on-axis misalignment estimation and cannot work for off-axis.

Paper Details

Date Published: 14 October 2015
PDF: 10 pages
Opt. Eng. 54(10) 104106 doi: 10.1117/1.OE.54.10.104106
Published in: Optical Engineering Volume 54, Issue 10
Show Author Affiliations
Naimesh R. Patel, Indian Institute of Space Science and Technology (India)
Chittur S. Narayanamurthy, Indian Institute of Space Science and Technology (India)

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