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Tunable mid-infrared laser properties of Cr2+:ZnMgSe and Fe2+:ZnSe crystals

✍ Scribed by M.E. Doroshenko; H. Jelínková; P. Koranda; J. Šulc; T.T. Basiev; V.V. Osiko; V.K. Komar; A.S. Gerasimenko; V.M. Puzikov; V.V. Badikov; D.V. Badikov

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
286 KB
Volume
7
Category
Article
ISSN
1612-2011

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✦ Synopsis

The laser properties of Bridgman method grown active crystals Cr 2+ :ZnMgSe and Fe 2+ :ZnSe were investigated at room temperature from the point of view of laser parameters. Cr 2+ :ZnMgSe crystal was pumped by the 1.66 μm wavelength radiation of pulsed Er 3+ :YAP laser. The maximum reached energy and slope efficiency with respect to absorbed pump energy was 4 mJ and 15%, respectively. The Cr 2+ :ZnMgSe laser oscillation spectrum was about 90 nm wide and centered at 2.47 μm. With the CaF2 prism placed inside the laser resonator the tuning within 2.3 -2.6 μm range was demonstrated. The pumping of Fe 2+ :ZnSe crystal was made by Q-switched Er:YAG laser radiation with the wavelength 2.94 μm. The measured maximum output Fe 2+ :ZnSe laser energy was 0.58 mJ with the generated wavelengths 4.3 -4.6 μm and with a slope efficiency in respect to absorbed energy of 38%. The study demonstrates quite promising perspectives of the Bridgman-technique-grown Cr 2+ :ZnMgSe and Fe 2+ :ZnSe crystals for development of the efficient at room-temperature working mid-IR tunable laser sources.

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