This article is cited in 6 papers

Special issue 'Extreme light fields and their interaction with matter'

Disk laser heads based on Yb : YAG for multikilowatt average power lasers

M. R. Volkov, I. I. Kuznetsov, I. B. Mukhin, O. V. Palashov

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: The main factors affecting the cooling efficiency of Yb : YAG disk active elements have been investigated, and key technologies for designing disk lasers with high average power and efficiency have been developed. The main parameters of a disk active element operating in the cw regime are optimised using numerical calculation. Disk laser heads are fabricated based on calculations and developed technologies, and lasing with optical efficiency up to 50% is demonstrated. An average power at the kilowatt level is obtained in a cavity with two laser heads, and a possibility of its further increasing is demonstrated.

Keywords: disk laser, ytterbium-doped yttrium aluminum garnet, high average power.

Received: 07.02.2019

 English version: Quantum Electronics, 2019, 49:4, 354–357

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