This article is cited in 3 papers

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Co²⁺:GGG nonlinear optical crystal for the 1.3 — 1.7-μm spectral range

V. B. Kravchenko^a, P. I. Sadovskii^a, A. T. Sobolev^a, L. Yu. Zakharov^a, S. P. Sadovskii<sup>b

a</sup> Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences
^b Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region

Abstract: A cobalt-doped GGG crystal is grown and its properties are studied. The absorption and fluorescence spectra in the visible and IR regions are measured. The absorption cross sections of the Co²⁺ ion in the GGG crystal at a wavelength of 1535 nm are determined for transitions from the ground (σ_gs = 4.8 × 10^-20 cm²) and metastable states (σ_es = 1.4 × 10^-20 cm²). Preliminary experimental results on Q-switching of erbium laser radiation by a Co²⁺:GGG passive Q-switch are presented.

PACS: 42.70.Mp, 42.60.Gd, 42.55.Rz

Received: 24.06.2009
Revised: 03.08.2009

 English version: Quantum Electronics, 2009, 39:12, 1121–1124

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