Heat dissipation in an erbium active element based on phosphate glass with diode-laser pumping

摘要

The heat dissipation in active ytterbium and ytterbium-erbium glass elements when pumped using laser diodes was measured. It was found that, when the active medium is inverted to a level of 0.75 N-Er, depending on the concentration of ytterbium and erbium ions, 55-70 of the total pump energy absorbed by the active element is converted into heat. The efficiency of the previously developed model of an active ytterbium-erbium medium for an adequate calculation of the heat generation in an active element is shown. (C) 2020 Optical Society of America