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Proceedings Paper

Calibration of optical phase shifter using a Michelson interferometer
Author(s): Wanfang Shi; Donald Tipton; Russell G. May; Richard O. Claus
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Paper Abstract

A method to calibrate an optical phase shifter used for digital speckle pattern interferometry was developed by using a Michelson interferometer and electronic charge- coupled device array camera. The phase shifter was constructed by attaching a mirror to an axially-poled lead zirconate titanate piezoelectric actuator. The results showed that for the particular piezoelectric actuator used, an applied voltage of 240 volts shifted the phase by 2 (pi) , and the application of increments of voltage in steps of 60 volts from 0 to 240 volts generated four steps of equal phase shift. The tests indicate that the phase shifter is well suited for digital speckle pattern interferometry, due to the good linearity of the phase shift with applied voltage.

Paper Details

Date Published: 23 September 1996
PDF: 8 pages
Proc. SPIE 2885, Holographic Optical Elements and Displays, (23 September 1996); doi: 10.1117/12.251872
Show Author Affiliations
Wanfang Shi, Xian Institute of Technology (China)
Donald Tipton, Virginia Polytechnic Institute and State Univ. (United States)
Russell G. May, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)

Published in SPIE Proceedings Vol. 2885:
Holographic Optical Elements and Displays
Freddie Shing-Hong Lin; Daxiong Xu, Editor(s)

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