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Proceedings Paper

Applications Of High Speed Pulsed-Laser Interferometry
Author(s): Osuk Y. Kwon; Dean M. Shough
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Paper Abstract

Recently a new class of phase-shifting interferometers have been developed that allow us to measure optical phases with high temporal variations. A stationary diffraction grating plays the key role to split the input beam into 0, +1, and -1 orders and simultaneously to introduce a phase shift among the multiplexed beams. This simultaneous phase shift provides the capability for instantaneous measurement of optical wavefronts by using pulsed-lasers. The theoretical basis for the phase shifting interferometry will be introduced briefly. Also results of laboratory measurements will be shown for examples such as the wavefront quality of a pico-second pulsed-laser beam, surface figure measurement of an actuated deformable mirror, and the air turbulence induced by high pressure air flow at different temperatures and flow speeds.

Paper Details

Date Published: 7 June 1989
PDF: 7 pages
Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); doi: 10.1117/12.969130
Show Author Affiliations
Osuk Y. Kwon, Lockheed Palo Alto Research Laboratory (United States)
Dean M. Shough, Lockheed Palo Alto Research Laboratory (United States)

Published in SPIE Proceedings Vol. 1032:
18th Intl Congress on High Speed Photography and Photonics
DaHeng Wang, Editor(s)

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