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Spectroscopy and Diode-Pumped Laser Experiments of LiLuF _{\bf 4} :Tm ^{{\bf 3}+} Crystals

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3 Author(s)
Cornacchia, Francesco ; NEST-INFM-CNR & Dipt. di Fis., Univ. di Pisa, Pisa ; Parisi, D. ; Tonelli, M.

In this work we report on the 2-mum laser emission of LiLuF4 crystals doped with thulium trivalent ions (Tm:LLF) at different doping density up to 16%. We will present our results regarding growth, absorption and emission spectroscopy, Judd-Ofelt analysis and room temperature diode pumping laser experiments as a function of the dopant density. The best result is 56% of slope efficiency, with a maximum output power of 280 mW. The emission wavelength ranges between 1985 and 2038 nm, exploiting the vibronic emission of Tm in LLF.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:44 ,  Issue: 11 )