Pumped-cavity frequency-doubling of semiconductor laser radiation

Abstract

One demonstrated scheme for doubling AlGaAs and InGaAs laser radiation to the blue (.400-.500 pm) is pumped-cavity secondharmonic generation (PC-SHG) [1]. In this scheme, an optically nonlinear medium is placed in a cavity pumped by an external source. We show that optimization of this process is a nonlinear problem and have developed a simple algorithm for selection of optimal parameters.