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Proceedings Paper

Optical Modal Deformation Sensor For Heterodyne Interferometry
Author(s): Robert Field; Martin Tarabocchia; Sandor Holly; Frederic White
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Paper Abstract

A sensor system based on the principle of the heterodyne interferometer can be used to sense modal deformations of optical surfaces. This paper describes significant characteristics of these optical mode sensors and optical configurations appropriate to sense piston, tilts, focus, and higher order modes like astigmatism, coma, and spherical aberration. Electronic processing of sensor signals to extract the optical mode magnitudes is described. Then the system is applied to the problem of real-time removal of dynamic tilts produced by air turbulence and mechanical vibrations in the phase data measured by a broad beam hetero-dyne interferometer.

Paper Details

Date Published: 11 July 1979
PDF: 10 pages
Proc. SPIE 0179, Adaptive Optical Components II, (11 July 1979); doi: 10.1117/12.957291
Show Author Affiliations
Robert Field, Rockwell International Corporation (United States)
Martin Tarabocchia, Rockwell International Corporation (United States)
Sandor Holly, Rockwell International Corporation (United States)
Frederic White, Rockwell International Corporation (United States)

Published in SPIE Proceedings Vol. 0179:
Adaptive Optical Components II
Sandor Holly, Editor(s)

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