Optical Modal Deformation Sensor For Heterodyne Interferometry

Robert Field; Martin Tarabocchia; Sandor Holly; Frederic White

doi:10.1117/12.957291

11 July 1979 Optical Modal Deformation Sensor For Heterodyne Interferometry

Robert Field, Martin Tarabocchia, Sandor Holly, Frederic White

Proceedings Volume 0179, Adaptive Optical Components II; (1979) https://doi.org/10.1117/12.957291
Event: Technical Symposium East, 1979, Washington, D.C., United States

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.

Citation Download Citation

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); https://doi.org/10.1117/12.957291

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