Open-loop simulations of atmospheric turbulence using the AdAPS interface

Jeffrey J. Widiker; Eric P. Magee

doi:10.1117/12.617031

22 August 2005 Open-loop simulations of atmospheric turbulence using the AdAPS interface

Jeffrey J. Widiker, Eric P. Magee

Proceedings Volume 5894, Advanced Wavefront Control: Methods, Devices, and Applications III; 589404 (2005) https://doi.org/10.1117/12.617031
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We present and analyze experimental results of lab-based open-loop turbulence simulation utilizing the Adaptive Aberrating Phase Screen Interface developed by ATK Mission Research, which incorporates a 2-D spatial light modulator manufactured by Boulder Nonlinear Systems. These simulations demonstrate the effectiveness of a SLM to simulate various atmospheric turbulence scenarios in a laboratory setting without altering the optical setup. This effectiveness is shown using several figures of merit including: long-term Strehl ratio, time-dependant mean-tilt analysis, and beam break-up geometry. The scenarios examined here range from relatively weak (D/r_o = 0.167) to quite strong (D/r_o = 10) turbulence effects modeled using a single phase-screen placed at the pupil of a Fourier Transforming lens. While very strong turbulence scenarios result long-term Strehl ratios higher than expected, the SLM provided an accurate simulation of atmospheric effects for conventional phase-screen strengths.

Citation Download Citation

Jeffrey J. Widiker and Eric P. Magee "Open-loop simulations of atmospheric turbulence using the AdAPS interface", Proc. SPIE 5894, Advanced Wavefront Control: Methods, Devices, and Applications III, 589404 (22 August 2005); https://doi.org/10.1117/12.617031

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