High-precision wide-dynamic-range WCE wavefront sensor

Bruce A. Horwitz

doi:10.1117/12.51200

13 January 1992 High-precision wide-dynamic-range WCE wavefront sensor

Bruce A. Horwitz

Proceedings Volume 1543, Active and Adaptive Optical Components; (1992) https://doi.org/10.1117/12.51200
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Bruce A. Horwitz "High-precision wide-dynamic-range WCE wavefront sensor", Proc. SPIE 1543, Active and Adaptive Optical Components, (13 January 1992); https://doi.org/10.1117/12.51200

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