Soviet Journal of Quantum Electronics

Efficient cross-relaxation laser emitting atλ= 2.94 μ

V I Zhekov, Vladimir A. Lobachev, T. M. Murina, Alexander M. Prokhorov

Published Sep 30, 1983• 49 citations

Abstract

An analysis was made of a new configuration of a laser utilizing the 4I11/2–4I11/2 transition in the Er3+ ions in YAG with a high activator concentration (~5×1021cm−3). It is shown that at a certain excitation rate the cross-relaxation processes increase considerably the lasing efficiency and make it possible to achieve cw emission as a result of transitions from a long-lived lower level.

DOI: 10.1070/qe1983v013n09abeh004620

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