Mr. Andrei V. Mezhenin Profile

Andrei V. Mezhenin

at Samara National Research Univ

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Proceedings Article | 13 January 2017 Paper

Optimal gain-to-loss ratio for COIL and EOIL

A. Mezhenin

Proceedings Volume 10254, 102540L (2017) https://doi.org/10.1117/12.2256566

KEYWORDS: Chemical oxygen iodine lasers, Oxygen, Resonators, Iodine, Chemical lasers, 3D modeling, Chemical analysis, Chemical species, Molecules

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The two-level generation model has been applied to analyze the dependence of power efficiency of chemical oxygen-iodine laser (COIL) and electric oxygen-iodine laser (EOIL) on three dimensionless similarity criteria: residence-to-extraction time ratio γ_d, gain-to-loss ratio Π and relaxation-to-excitation rate ratio Λ. Power efficiency is represented as the product of two factors – the medium extraction efficiency and the extraction efficiency of resonator – each being a function of the Π. The dependences of the similarity criteria γ_d and Π optimal values on the kinetic and optical losses have been found. At low kinetic and optical losses, it is expedient to work with high values of γ_d and Π respectively. It has been found that maximum power efficiency is achieved when Π=3–8 for COIL and Π=9–17 for EOIL at the typical γ_d and optical losses rate.

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