Abstract
The paper reports the first room-temperature operation of the in-band pumped laser. A set of crystals varying in holmium concentrations (from 0.1 up to 2.5 mol. % of ), synthesized using the Bridgeman technique, was used for lasing and related spectroscopy investigation. A pulsed 1.94 μm thulium fiber laser system was used for longitudinal pumping. For 1.5 mol. % of , the maximal wavelength tunability (from 2073 to 2114 nm) and output energy (1.6 mJ at 2113 nm) were obtained for absorbed pumping energy 34 mJ. Without the tuning element, the slope efficiency up to 30% in respect to absorbed power was obtained using this sample.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Kirill Eremeev, Pavel Loiko, Abdelmjid Benayad, Gurvan Brasse, Patrice Camy, and Alain Braud
Opt. Lett. 48(7) 1730-1733 (2023)
Jan Šulc, Michal Němec, Richard Švejkar, Helena Jelínková, Maxim E. Doroshenko, Pavel P. Fedorov, and Vyacheslav V. Osiko
Opt. Lett. 38(17) 3406-3409 (2013)
Romain Thouroude, Aleksey Tyazhev, Ammar Hideur, Pavel Loiko, Patrice Camy, Jean-Louis Doualan, Hervé Gilles, and Mathieu Laroche
Opt. Lett. 45(16) 4511-4514 (2020)