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Proceedings Paper

A method of generating atmospheric turbulence with a liquid crystal spatial light modulator
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Paper Abstract

The Naval Research Laboratory has developed a new method for generating atmospheric turbulence and a testbed that simulates its aberrations far more inexpensively and with greater fidelity using a Liquid Crystal (LC) Spatial Light Modulator (SLM) than many other methods. This system allows the simulation of atmospheric seeing conditions ranging from very poor to very good and different algorithms may be easily employed on the device for comparison. These simulations can be dynamically generated and modified very quickly and easily. In addition, many models for simulating turbulence often neglect temporal transitions along with different seeing conditions. Using the statistically independent set of Karhunen-Loeve polynomials in conjunction with Kolmogorov statistics in this model provides an accurate spatial and temporal model for simulating turbulence. An added benefit to using a LC SLM is its low cost; and multiple devices can be used to simulate multiple layers of turbulence in a laboratory environment. Current testing with using multiple LC SLMs is under investigation at the Naval Research Laboratory and the Naval Postgraduate School.

Paper Details

Date Published: 12 August 2010
PDF: 9 pages
Proc. SPIE 7816, Advanced Wavefront Control: Methods, Devices, and Applications VIII, 78160E (12 August 2010); doi: 10.1117/12.861510
Show Author Affiliations
Christopher C. Wilcox, U.S. Naval Research Lab. (United States)
Freddie Santiago, U.S. Naval Research Lab. (United States)
Ty Martinez, U.S. Naval Research Lab. (United States)
Jonathan R. Andrews, U.S. Naval Research Lab. (United States)
Sergio R. Restaino, U.S. Naval Research Lab. (United States)
Melissa Corley, Naval Postgraduate School (United States)
Scott W. Teare, New Mexico Tech (United States)
Brij N. Agrawal, Naval Postgraduate School (United States)

Published in SPIE Proceedings Vol. 7816:
Advanced Wavefront Control: Methods, Devices, and Applications VIII
David C. Dayton; Troy A. Rhoadarmer; Darryl J. Sanchez, Editor(s)

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