Nonlinear upconversion quenching in Er-doped glasses: modeling and experiment

Nonlinear upconversion quenching in high Er-doped glasses has been studied with use of Monte Carlo modeling and a new experimental steady-state technique. The experimental and simulated results exhibit that the upconversion coefficient depends on the following factors: (a) erbium content, (b) migration of excitation, (c) pump power, and (d) duration of pulse pumping.