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

Autor: Tasoltan T. Basiev, Petr Koranda, Valery V. Badikov, A. S. Gerasimenko, V. K. Komar, Helena Jelínková, V. V. Osiko, Jan Šulc, D. V. Badikov, V. M. Puzikov, Maxim E. Doroshenko
Rok vydání: 2010
Předmět:
Zdroj: Laser Physics Letters. 7:38-45
ISSN: 1612-202X
1612-2011
Popis: The laser properties of Bridgman method grown active crystals Cr2+:ZnMgSe and Fe2+:ZnSe were investigated at room temperature from the point of view of laser parameters. Cr2+:ZnMgSe crystal was pumped by the 1.66 μm wavelength radiation of pulsed Er3+:YAP laser. The maximum reached energy and slope efficiency with respect to absorbed pump energy was 4 mJ and 15%, respectively. The Cr2+: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 Fe2+:ZnSe crystal was made by Q-switched Er:YAG laser radiation with the wavelength 2.94 μm. The measured maximum output Fe2+: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 Cr2+:ZnMgSe and Fe2+:ZnSe crystals for development of the efficient at room-temperature working mid-IR tunable laser sources.
Databáze: OpenAIRE
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