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11 July 1979 Optical Modal Deformation Sensor For Heterodyne Interferometry
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Proceedings Volume 0179, Adaptive Optical Components II; (1979)
Event: Technical Symposium East, 1979, Washington, D.C., United States
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.
© (1979) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert Field, Martin Tarabocchia, Sandor Holly, and Frederic White "Optical Modal Deformation Sensor For Heterodyne Interferometry", Proc. SPIE 0179, Adaptive Optical Components II, (11 July 1979);

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