Impacts of turbulence thermal blooming interaction (Conference Presentation)

Mark F. Spencer

doi:10.1117/12.2529636

10 September 2019 Impacts of turbulence thermal blooming interaction (Conference Presentation)

Mark F. Spencer

Proceedings Volume 11135, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019; 1113507 (2019) https://doi.org/10.1117/12.2529636
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

This study investigates the use of a recently published extended generalized scaling law [Opt. Exp. 26(12), 15609-15622 (2018)]. In practice, the extended generalized scaling law accurately predicts the diffraction-limited peak irradiance in the far zone given the beam power, wavelength, propagation distance, field-effective area, and field-out-coupling factor. After reviewing this extended scaling law formulation, we compare the far-zone predictions for peak irradiance and Gaussian beam spread to wave-optics simulations which use the split-step beam propagation method and Monte-Carlo averaging. Compared to traditional approaches, the results show that this extended scaling law formulation does a better job in predicting the correct peak irradiance and the correct Gaussian beam spread for horizontal-path scenarios with varying levels of atmospheric turbulence.

Conference Presentation

Citation Download Citation

Mark F. Spencer "Impacts of turbulence thermal blooming interaction (Conference Presentation)", Proc. SPIE 11135, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019, 1113507 (10 September 2019); https://doi.org/10.1117/12.2529636

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