B. I. Galagan, E. A. Godovikova, B. I. Denker, M. L. Meil'man, V. V. Osiko, S. E. Sverchkov, “Efficient bleachable filter based on Co2+:MgAl2O4 crystals for Q-switching of λ = 1.54 μm erbium glass lasers”, Kvantovaya Elektronika, 1999, Volume 26, Number 3,Pages 189

This article is cited in 16 papers

Letters to the editor

Efficient bleachable filter based on Co²⁺:MgAl₂O₄ crystals for Q-switching of λ = 1.54 μm erbium glass lasers

B. I. Galagan^a, E. A. Godovikova^b, B. I. Denker^a, M. L. Meil'man^b, V. V. Osiko^a, S. E. Sverchkov^a

^a Laser Materials and Technology Research Center, Prokhorov General Physics Institute, RAS, Moscow
^b Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow

Abstract: It is suggested that Co²⁺:MgAl₂O₄ spinel crystals can be used as efficient passive Q-switches for &lambda = 1.54 μm erbium lasers. A laser with an active element 3 mm in diameter and 55 mm long, containing such a switch, generated pulses with the structure of the TEM₀₀ mode, of 5.7 mJ energy, and of 50 ns duration. The energy was only 20% less than that attained by active switching with a device based on frustrated total internal reflection.

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

Received: 11.01.1999