Spectral and temporal properties of diode-pumped Er, Yb: glass laser

The peculiarities of spectral and temporal properties of diode-pumped Er, Yb: glass laser emission are investigated. Two groups of lines at 1535 and 1543 nm in lasing spectra of Er, Yb: glass laser have been observed. The competing dynamic behavior of the lasing lines groups has been registered. The obtained data are treated in the context of existence of two different active center assemblies with the Stark splitted energy levels masked by inhomogeneous broadening of the luminescence and absorption spectra. The variations in the lasing line number during changing pump power have been observed and explained in the terms of changing the number of the active center assemblies involved in a laser action.