Synthesis of laser beams with minimum near- and farfield divergence

Nickolai R. Belashenkov; Vitali V. Bezzubik; Sergey Vladimorovich Egorov; Vyatcheslav B. Karasev; Danil A. Kirsanov; Sergei A. Kozlov

doi:10.1117/12.271776

2 April 1997 Synthesis of laser beams with minimum near- and farfield divergence

Nickolai R. Belashenkov, Vitali V. Bezzubik, Sergey Vladimorovich Egorov, Vyatcheslav B. Karasev, Danil A. Kirsanov, Sergei A. Kozlov

Author Affiliations +

Proceedings Volume 3091, Laser Applications Engineering (LAE-96); (1997) https://doi.org/10.1117/12.271776
Event: International Symposium on Intensive Laser Actions and Their Applications and Laser Applications Engineering, 1996, St. Petersburg-Pushkin, Russian Federation

Abstract

In the present paper the laser beams with Cartesian symmetry having the minimum diffraction divergence in near and far fields are synthesized. The spatial sizes of these beams in near field as well as the angular size in far field have been defined on the share of total beam energy that could be transmitted within this size. It is shown that the laser beams with minimum near-field diffraction divergence are well approximated by coherent superposition of a few number of lowest symmetric Hermite-Gaussian modes. The transverse distributions of light waves with minimum far-field divergence are described by prolate spheroidal functions.

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Nickolai R. Belashenkov, Vitali V. Bezzubik, Sergey Vladimorovich Egorov, Vyatcheslav B. Karasev, Danil A. Kirsanov, and Sergei A. Kozlov "Synthesis of laser beams with minimum near- and farfield divergence", Proc. SPIE 3091, Laser Applications Engineering (LAE-96), (2 April 1997); https://doi.org/10.1117/12.271776

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