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Proceedings Paper

High-precision wide-dynamic-range WCE wavefront sensor
Author(s): Bruce A. Horwitz
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Paper Abstract

A temporal carrier frequency shearing interferometer was designed and fabricated for Kaman Aerospace to support the Space Shuttle based Wavefront Control Experiment (WCE). This platform and the intended experiments placed many constraints (weight, size, power, sensitivity, etc.) on the sensor design process. The sensor resulting from this design meets all requirements by using a rotating crossed log spiral grating and PMT detectors to achieve both a large tilt range and high precision. A measurement dynamic range of 1340:1 is obtained at 3875 wavefronts per second and the sensor is shot noise limited over 5 decades of signal.

Paper Details

Date Published: 13 January 1992
PDF: 11 pages
Proc. SPIE 1543, Active and Adaptive Optical Components, (13 January 1992); doi: 10.1117/12.51200
Show Author Affiliations
Bruce A. Horwitz, Litton Itek Optical Systems (United States)


Published in SPIE Proceedings Vol. 1543:
Active and Adaptive Optical Components
Mark A. Ealey, Editor(s)

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