Optimal gain-to-loss ratio for COIL and EOIL

A. V. Mezhenin

doi:10.1117/12.2256566

13 January 2017 Optimal gain-to-loss ratio for COIL and EOIL

A. V. Mezhenin

Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 102540L (2017) https://doi.org/10.1117/12.2256566
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria

Abstract

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.

Citation Download Citation

A. V. Mezhenin "Optimal gain-to-loss ratio for COIL and EOIL", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102540L (13 January 2017); https://doi.org/10.1117/12.2256566

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