Measurement of the optical path difference over an atmospheric turbulence phase plate

Jeffrey S. Tharp; Robert K. Tyson

doi:10.1117/12.550064

25 October 2004 Measurement of the optical path difference over an atmospheric turbulence phase plate

Jeffrey S. Tharp, Robert K. Tyson

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.550064
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

We report on measurements of optical path differences over a commercially-available phase plate made to simulate atmospheric turbulence. These measurements were made using an AOA mini-Wavescope Shack-Hartmann wavefront sensor consistent with our closed-loop experimental configuration. The atmospheric phase plate, manufactured by Wavefront Sciences Inc., is made to simulate turbulence for five different zenith angles, from overhead to a horizontal path, and five different specified atmospheric coherence lengths. This data will be used as our known, repeatable aberratoin that simulates atmospheric propagation in a closed-loop adaptive optics experiment.

Citation Download Citation

Jeffrey S. Tharp and Robert K. Tyson "Measurement of the optical path difference over an atmospheric turbulence phase plate", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.550064

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