Deep turbulence sensing using digital holography

Tyler J. Hardy; Maya G. Mandyam; Cleveland G. Armentrout; Robert L. Lloyd; Nathanial C. George; Mark F. Spencer; Casey J. Pellizzari

doi:10.1117/12.3028342

7 October 2024 Deep turbulence sensing using digital holography

Tyler J. Hardy, Maya G. Mandyam, Cleveland G. Armentrout, Robert L. Lloyd, Nathanial C. George, Mark F. Spencer, Casey J. Pellizzari

Author Affiliations +

Proceedings Volume 13149, Unconventional Imaging, Sensing, and Adaptive Optics 2024; 131490J (2024) https://doi.org/10.1117/12.3028342
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

In this paper we explore the use of digital holography with a high-speed camera to sense and correct atmospheric turbulence. Deep turbulence, a type of atmospheric turbulence, degrades the performance of both imaging and directed-energy systems. Characterizing and correcting atmospheric turbulence requires knowledge of the induced phase errors on the wavefront. Digital holography provides the capability to measure phase errors in the most challenging atmospheric conditions. Previous laboratory experiments at the United States Air Force Academy have demonstrated both sensing and correction of simulated atmospheric turbulence at discrete planes using digital holography. In this work, we design and test a digital holography system capable of imaging in relevant atmospheric conditions. This paper expands the optical design of the existing laboratory-based digital holography system to be more capable of accurately measuring real-world turbulence because it uses a high-speed camera. Our results detail the performance of the digital holography system in a controlled test environment and provide data about the feasibility of integrating digital holography into future fielded systems.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tyler J. Hardy, Maya G. Mandyam, Cleveland G. Armentrout, Robert L. Lloyd, Nathanial C. George, Mark F. Spencer, and Casey J. Pellizzari "Deep turbulence sensing using digital holography", Proc. SPIE 13149, Unconventional Imaging, Sensing, and Adaptive Optics 2024, 131490J (7 October 2024); https://doi.org/10.1117/12.3028342

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