Abstract
The thulium microlasers based on yttrium-aluminium perovskite and yttrium-aluminium garnet crystals are considered as coherent light sources at the wavelength near 2 μm. The comparative analysis of these lasers is carried out by means of the lasers’ parameters optimization for each value of the pumping power taking into consideration the cross-relaxation and up-conversion processes as well as heating of the active medium. The optimal values of the active medium length, activator concentration and the output mirror reflectivity are determined both for Tm:YAP- and Tm:YAG-laser. The pulse generation of Tm:YAP- and Tm:YAG-lasers is also considered, the parameters of this regime are determined. The comparison shows the suitability of Tm:YAP laser crystal both for cw and pulse generation. The up-conversion influence on the laser characteristics is also analyzed.
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42.60.Gd
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Buryy, O., Sugak, D., Ubizskii, S. et al. The comparative analysis and optimization of the free-running Tm3+:YAP and Tm3+:YAG microlasers. Appl. Phys. B 88, 433–442 (2007). https://doi.org/10.1007/s00340-007-2718-3
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DOI: https://doi.org/10.1007/s00340-007-2718-3