A simple turbulence simulator for adaptive optics

Sandrine Thomas

doi:10.1117/12.549858

25 October 2004 A simple turbulence simulator for adaptive optics

Sandrine Thomas

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.549858
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

In this article, I describe a new, inexpensive way to make transparent phase screens. I list available technologies of physical turbulence simulation and describe the transparent phase-plate screens that were produced by the laquer-spray technique and characterized in the laboratory. The spatial spectrum of phase perturbations is a reasonable match to the Kolmogorov law with r₀ around 0.5 mm at 0.633 μm over spatial frequencies from 0.75 to 5 mm^-1. A turbulence simulator using two such rotating screens and destined for the adaptive optics instrument for the 4.1-m SOAR telescope is described.

Citation Download Citation

Sandrine Thomas "A simple turbulence simulator for adaptive optics", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.549858

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