Thermal-blooming compensation using target-in-the-loop techniques

Ryan C. Lawrence; Arthur Nitkowski; Charles Higgs; Donald J. Link

doi:10.1117/12.620949

23 August 2005 Thermal-blooming compensation using target-in-the-loop techniques

Ryan C. Lawrence, Arthur Nitkowski, Charles Higgs, Donald J. Link

Proceedings Volume 5895, Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation II; 58950N (2005) https://doi.org/10.1117/12.620949
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We report experimental results that demonstrate compensation of extended turbulence and thermal-blooming of high-energy lasers using target-in-the-loop techniques in a scaled laboratory environment. For these experiments the deformable mirror figure was controlled by an algorithm designed to maximize the target-plane intensity as measured by a camera at the transmitter. Results using this TIL configuration were compared under identical conditions to results obtained under control of a Hartmann wavefront sensor and least-squares reconstructor. Experiments were performed for a variety of propagation scenarios anticipated for tactical HEL applications and in all cases the TIL system was seen to outperform the conventional Hartmann-driven adaptive-optics system. We will discuss the details of the the target-in-the-loop algorithm, the laboratory configuration, and the experimental results.

Citation Download Citation

Ryan C. Lawrence, Arthur Nitkowski, Charles Higgs, and Donald J. Link "Thermal-blooming compensation using target-in-the-loop techniques", Proc. SPIE 5895, Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation II, 58950N (23 August 2005); https://doi.org/10.1117/12.620949

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