Instrumentation, Techniques, and Measurement

Measurement of optical misalignment using wavefront sensing

[+] Author Affiliations
Naimesh Patel, Chittur S. Narayanamurthy

Indian Institute of Space Science and Technology (IIST), Department of Physics, Applied and Adaptive Optics Laboratory, VALIAMALA(PO), Thiruvananthapuram 695547, India

Opt. Eng. 54(10), 104106 (Oct 14, 2015). doi:10.1117/1.OE.54.10.104106
History: Received May 28, 2015; Accepted August 20, 2015
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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.

© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Naimesh Patel and Chittur S. Narayanamurthy
"Measurement of optical misalignment using wavefront sensing", Opt. Eng. 54(10), 104106 (Oct 14, 2015). ; http://dx.doi.org/10.1117/1.OE.54.10.104106


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