12 May 2015 Temperature dependent absorption measurement of various transition metal doped laser materials
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Abstract
In recent years, there has been a vast development of high energy class lasers of the order of 100 J to kJ level which have potential applications in the field of science and technology. Many such systems use the gain media cooled at cryogenic temperatures which will help in enhancing the spectroscopic and thermo-optical properties. Nevertheless, parasitic effects like amplified spontaneous emission enhance and affect the overall efficiency. The best way to suppress this effect is to use cladding element attached to the gain material. Based on these facts, this work was focused on the systematic investigation of temperature dependent absorption of several materials doped with transition metals, which can be used as cladding, as laser gain material, or as passive Q-switching element. The Ti:sapphire, Cr:YAG, V:YAG, and Co:MALO samples were measured in temperature range from 80 K to 330 K by step of 50 K. Using Beer-Lambert law we estimated the absorption coefficient of these materials.
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Lucie Horackova, Jan Šulc, Helena Jelinkova, Venkatesan Jambunathan, Antonio Lucianetti, Tomás Mocek, "Temperature dependent absorption measurement of various transition metal doped laser materials", Proc. SPIE 9513, High-Power, High-Energy, and High-Intensity Laser Technology II, 951311 (12 May 2015); doi: 10.1117/12.2178608; https://doi.org/10.1117/12.2178608
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