Diode-pumped laser and spectroscopic properties of Yb,Ho:GGAG at 2 mu m and 3 mu m

摘要

In this paper, spectroscopy and laser results obtained with new active medium Yb,Ho:GGAG (gadolinium-gallium-aluminum-garnet) emitting laser radiation at 2.09 mu m and 2.94 mu m are shown. The absorption, emission cross-section, and radiative decay time for several energy levels Yb3+ (F-2(5/2)), Ho3+ (I-5(6) and I-5(7)) are presented. Using longitudinal diode pumping the laser action at 2 mu m and 3 mu m together with the wavelength tunability at several spectral bands 2063-2113 nm, 2860 nm, and 2912-2942 nm were reached.