Fe:ZnMnSe laser active material properties at room and cryogenic temperature

H. Jelínková; M. E. Doroshenko; V. V. Osiko; M. Němec; J. Šulc; M. Jelínek Jr.; D. Vyhlídal; V. Kubecek; M. Čech; N. O. Kovalenko; A. S. Gerasimenko

doi:10.1117/12.2228844

9 May 2016 Fe:ZnMnSe laser active material properties at room and cryogenic temperature

H. Jelínková, M. E. Doroshenko, V. V. Osiko, M. Němec, J. Šulc, M. Jelínek Jr., D. Vyhlídal, V. Kubecek, M. Čech, N. O. Kovalenko, A. S. Gerasimenko

Author Affiliations +

Proceedings Volume 9893, Laser Sources and Applications III; 98930A (2016) https://doi.org/10.1117/12.2228844
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Fe:Zn(1-x)Mn(x)Se solid solution spectroscopic and laser properties were investigated in the temperature range 80- 290 K. Two novel samples with different zinc - manganese (Zn–Mn) ratio described by the Mn content x (0.1 or 0.2) were used and the results were compared to the known Fe:ZnSe crystal. The samples had a broad absorption spectra with the maximum around 3 μm and therefore an Er:YAG laser (2.94 μm, 10 mJ, 120 ns) was used as a pump radiation source. The Fe:ZnMnSe fluorescence spectra are generally broad in the range 3.5 – 5.5 μm. In the case of Fe:ZnMnSe x = 0.1, the fluorescence spectrum at 290 K is ranging from 3.5 to 5.5 μm. Lowering the temperature down to 80 K lead to the spectral narrowing mainly in the mid-IR part, but the fluorescence is still up to 5 μm at 80 K. In the case of Fe:ZnMnSe x = 0.2 the fluorescence is shifted towards mid-IR up to 5.2 μm even at 80 K. The fluorescence lifetime decreases from tens of us at 80 K down to 1 us at 240 K. The laser oscillations were successfully achieved with both novel Fe:ZnMnSe crystals in the temperature range 80- 290 K. In the case of x = 0.1, the central wavelength was ~4.2 μm at 80 K and the temperature increase up to 290 K led to almost linear increase of the wavelength up to ~4.75 μm. The tendency was similar in the case of Fe:ZnMnSe x = 0.2: the output wavelength increased from ~4.3 μm up to ~4.8 μm with the temperature increase from 80 to 290 K. The laser spectral linewidth was about 300 nm. In comparison with the Fe:ZnSe crystal, the laser output wavelength shift toward mid-IR region without any spectrally tunable element in the laser cavity can be clearly observed.

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H. Jelínková, M. E. Doroshenko, V. V. Osiko, M. Němec, J. Šulc, M. Jelínek Jr., D. Vyhlídal, V. Kubecek, M. Čech, N. O. Kovalenko, and A. S. Gerasimenko "Fe:ZnMnSe laser active material properties at room and cryogenic temperature", Proc. SPIE 9893, Laser Sources and Applications III, 98930A (9 May 2016); https://doi.org/10.1117/12.2228844

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