V. S. Gulev, S. L. Mikerin, A. A. Klyuchnikov, V. D. Ugozhaev, V. F. Nesterenko, A. M. Yurkin, “Generation in a laser with a tubular active element made of a neodymium-doped potassium – gadolinium tungstate crystal”, Kvantovaya Elektronika, 2001, Volume 31, Number 10,Pages <nobr>867

Lasers and amplifiers

Generation in a laser with a tubular active element made of a neodymium-doped potassium – gadolinium tungstate crystal

V. S. Gulev^a, S. L. Mikerin^a, A. A. Klyuchnikov^a, V. D. Ugozhaev^a, V. F. Nesterenko^b, A. M. Yurkin^b

^a Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk
^b Design Technological Institute of Monocrystals, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: The generation in a laser with an active element made of a neodymium-doped potassium – gadolinium tungstate crystal Nd³⁺:KGW in the form of a parallelepiped with a coaxial hole for a pump flashlamp is studied. The effect of anisotropy of spectral and laser properties of a Nd³⁺:KGW laser and of the thermal inhomogeneity of the distribution of laser emission on the output mirror is experimentally demonstrated under conditions when the pump radiation virtually does not return to the medium (the unlimited aperture model).

PACS: 42.55.Rz, 42.60.Jf

Received: 10.05.2001
Revised: 16.08.2001