Stimulated emission from laser-pumped ytterbium- and erbium-activated glasses
E. I. Galant, Valery N Kalinin, Sergei G. Lunter +5 more
A calculation is reported of the energy parameters of stimulated emission of λ = 1.54 μ. radiation from glasses activated with Yb 3+ and Er 3+ ions and pumped with neodymium laser radiation. The calculation allows for the influence of the induced absorption at the pump wavelength and for the quenching of the excited levels of the Yb 3+ and Er 3+ ions. The kinetics and magnitude of the induced absorption are investigated for glasses of various compositions containing Yb 3+ and Er 3+ . The calculated values of the energy parameters are compared with the experimental results. Some features of the stimulated emission spectra of erbium-activated phosphate glasses are considered.
Soviet Journal of Quantum Electronics•Oct 31, 1976•5 citations