Modelagem e simulação computacional aplicadas na investigação do desempenho de lasers de Érbio

Abstract

The modeling and computational simulation have been increasingly applied in problems solution and in optimization of systems and processes of various segments. Industrial applications, production systems and the laser operation are examples of applying modeling and simulation that make possible, through abstraction of reality, the investigation of the real system behavior and experimentation with reduced costs. Er:YLF lasers, used in optical amplifiers and laser surgeries, among other applications, have been the subject of studies which aim to find efficiencies in their operations. In this work, in order to investigate the behavior of these lasers and to identify operating conditions with better performances, a model and a computer simulation of Er:YLF lasers were developed, based on numerical models that describe the dynamic behavior of such systems. The model, implemented in Scilab language, has considered variables of the resonator, of the pumping and of the active medium comprising six different Er3+ concentrations. The input power, the pumping duration, the losses of the resonator and the laser output power were some of the parameters considered. The simulation allowed flexibility in the investigation of the operation conditions of lasers and understanding of the interaction of the system variables and their influence on laser performance. The investigation allowed the identification of several scenarios of operating erbium lasers in order to support different desired situations with the best possible performance.