Bulk Fe:ZnSe laser gain-switched by the Q-switched Er:YAG laser

Maxim E. Doroshenko; Tasoltan T. Basiev; Petr Koranda; Helena Jelínková; Michal Němec; Miroslav Čech; Jan Šulc; Vitaly K. Komar; Andriy S. Gerasimenko; Valerii V. Badikov; Dmitri V. Badikov

doi:10.1117/12.810257

27 February 2009 Bulk Fe:ZnSe laser gain-switched by the Q-switched Er:YAG laser

Maxim E. Doroshenko, Tasoltan T. Basiev, Petr Koranda, Helena Jelínková, Michal Němec, Miroslav Čech, Jan Šulc, Vitaly K. Komar, Andriy S. Gerasimenko, Valerii V. Badikov, Dmitri V. Badikov

Author Affiliations +

Proceedings Volume 7193, Solid State Lasers XVIII: Technology and Devices; 71931K (2009) https://doi.org/10.1117/12.810257
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

Fe:ZnSe is one of the most promising materials capable of generating broadly tunable laser radiation in the wavelength range from 3.5 to 5 μm. The aim of the work was to test laser properties of the Bridgman-method-grown Fe²⁺:ZnSe crystal activated through the synthesis process as an active medium coherently pumped with the Q-switched Er:YAG laser whose oscillation wavelength (2937 nm) corresponds to the maximum of the Fe²⁺:ZnSe absorption spectrum. The Er:YAG laser generated giant pulses with the duration 160 - 200 ns and energy 20 - 30 mJ. The repetition-rate was set to be 1 Hz. The oscillation properties, such as the pulse length, energy, and generated beam spatial structure, of the Bridgman-method-grown Fe2+:ZnSe crystal used as an active medium of Fe²⁺:ZnSe laser operated at room temperature were investigated. The maximal obtained output energy of room temperature Fe²⁺:ZnSe laser was 580 μJ for the absorbed energy of 5.3 mJ which corresponds to slope efficiency of 38%. The generated pulse waveform was found to follow that of the pump one.

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Maxim E. Doroshenko, Tasoltan T. Basiev, Petr Koranda, Helena Jelínková, Michal Němec, Miroslav Čech, Jan Šulc, Vitaly K. Komar, Andriy S. Gerasimenko, Valerii V. Badikov, and Dmitri V. Badikov "Bulk Fe:ZnSe laser gain-switched by the Q-switched Er:YAG laser", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71931K (27 February 2009); https://doi.org/10.1117/12.810257

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