Effects of thermal blooming on systems comprised of tiled subapertures

Charles L Leakeas; Richard J. Bartell; Matthew J. Krizo; Steven T. Fiorino; Salvatore J. Cusumano; Matthew R. Whiteley

doi:10.1117/12.849696

4 May 2010 Effects of thermal blooming on systems comprised of tiled subapertures

Charles L Leakeas, Richard J. Bartell, Matthew J. Krizo, Steven T. Fiorino, Salvatore J. Cusumano, Matthew R. Whiteley

Proceedings Volume 7685, Atmospheric Propagation VII; 76850M (2010) https://doi.org/10.1117/12.849696
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Laser weapon systems comprise of tiled subapertures are rapidly emerging in the directed energy community. The Air Force Institute of Technology Center for Directed Energy (AFIT/CDE), under sponsorship of the HEL Joint Technology Office has developed performance models of such laser weapon system configurations consisting of tiled arrays of both slab and fiber subapertures. These performance models are based on results of detailed waveoptics analyses conducted using WaveTrain. Previous performance model versions developed in this effort represent system characteristics such as subaperture shape, aperture fill factor, subaperture intensity profile, subaperture placement in the primary aperture, subaperture mutual coherence (piston), subaperture differential jitter (tilt), and beam quality wave-front error associated with each subaperture. The current work is a prerequisite for the development of robust performance models for turbulence and thermal blooming effects for tiled systems. Emphasis is placed on low altitude tactical scenarios. The enhanced performance model developed will be added to AFIT/CDE's HELEEOS parametric one-on-one engagement level model via the Scaling for High Energy Laser and Relay Engagement (SHaRE) toolbox.

Citation Download Citation

Charles L Leakeas, Richard J. Bartell, Matthew J. Krizo, Steven T. Fiorino, Salvatore J. Cusumano, and Matthew R. Whiteley "Effects of thermal blooming on systems comprised of tiled subapertures", Proc. SPIE 7685, Atmospheric Propagation VII, 76850M (4 May 2010); https://doi.org/10.1117/12.849696

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