N. I. Zhavoronkov, V. P. Mikhailov, N. V. Kuleshov, B. I. Minkov, A. S. Avtukh, “Absorption saturation in Cr<sup>4+</sup>-activated silicate crystals and use of these crystals in passive laser switches”, Kvantovaya Elektronika, 1995, Volume 22, Number 1,Pages <nobr>37

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Absorption saturation in Cr⁴⁺-activated silicate crystals and use of these crystals in passive laser switches

N. I. Zhavoronkov^a, V. P. Mikhailov^a, N. V. Kuleshov^a, B. I. Minkov^b, A. S. Avtukh^a

^a International Laser Center, Belarus State Technical University, Minsk
^b A. N. Sevchenko Research Institute of Applied Physical Problems, Belarusian State University, Minsk

Abstract: The absorption saturation in Cr⁴⁺-activated Mg₂SiO₄ and Y₂SiO₅ crystals was studied. The cross sections were calculated for the absorption of 694 nm light by the ground ³A₂(³F) and the excited ³T₂(³F) states. A ruby laser was passively Q-switched by Mg₂SiO₄:Cr⁴⁺ and Y₂SiO₅:Cr⁴⁺ crystals. The duration and energy of the output pulses were τ = 100 ns and E = 0.24 J.

PACS: 42.55.Px, 42.60.Gd