Comparison between method of lines and time domain method in evaluating the large signal responses of Fabry-Perot semiconductor lasers

Abstract

An extensive comparison between two modeling methods: Method of Lines and Time Domain Method in analyzing the large signal responses of Fabry-Perot semiconductor lasers is presented. The methods are implemented in two numerical codes written in FORTRAN and using DIGITAL ALPHA workstations under VAX/VMS and UNIX operating systems. The comparison shows good agreement between the simulation results under specific conditions. A special accent is placed on the advantages and drawbacks of both methods by taking into account their numerical problems and the computational effort implied by simulations.