Folded optical design for high fidelity atmospheric emulation with a spatial light modulator

Sarah A. Tedder; Yousef Chahine

doi:10.1117/12.2646884

15 March 2023 Folded optical design for high fidelity atmospheric emulation with a spatial light modulator

Sarah A. Tedder, Yousef Chahine

Proceedings Volume 12413, Free-Space Laser Communications XXXV; 124131I (2023) https://doi.org/10.1117/12.2646884
Event: SPIE LASE, 2023, San Francisco, California, United States

Conference Poster

Abstract

Atmospheric emulators based on spatial light modulators offer the ability to test atmospheric propagation effects on a laser communication component’s performance in the laboratory setting. To create a high-fidelity atmospheric emulator, details of the optical design are key. This paper discusses the optical design choices and refinements that enabled the creation of a system that was verified to recreate multi-layer turbulence with high fidelity up to D/r₀ =50. Optical design choices that affect the fidelity discussed in this paper include the characteristics of the input laser, the spatial light modulator, the holograms, the image relay optical components, and the spatial filter. Also included in this paper is a comparison of the chosen folded optical layout to an alternative angled layout.

Citation Download Citation

Sarah A. Tedder and Yousef Chahine "Folded optical design for high fidelity atmospheric emulation with a spatial light modulator", Proc. SPIE 12413, Free-Space Laser Communications XXXV, 124131I (15 March 2023); https://doi.org/10.1117/12.2646884

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