This article is cited in 18 papers

Lasers

Laser performance of in-band pumped Er:LiYF₄ and Er:LiLuF₄ crystals

K. N. Gorbachenya^a, S. V. Kurilchik^b, V. E. Kisel^a, A. S. Yasukevich^a, N. V. Kuleshov^a, A. S. Nizamutdinov^b, S. L. Korableva^b, V. V. Semashko<sup>b

a</sup> International Laser Center, Belarus State Technical University, Minsk
^b Kazan (Volga Region) Federal University

Abstract: Spectroscopic properties of Er:LiLuF₄ and Er:LiYF₄ crystals in the spectral region near 1.5 μm and the lasing characteristics of these crystals under in-band pumping at a wavelength of 1522 nm are studied. With the Er:LiLuF₄ crystal, the maximum slope efficiency with respect to the absorbed pump power was 44% at a wavelength of 1609 nm. Continuous-wave operation of an inband pumped Er:LiYF₄ laser is obtained for the first time. The output power at a wavelength of 1606 nm was 58 mW with a slope efficiency of 21%.

Keywords: erbium ions, fluoride crystals, spectroscopy, lasing, inband pumping.

Received: 23.11.2015
Revised: 11.01.2016

 English version: Quantum Electronics, 2016, 46:2, 95–99

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