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An FDTD algorithm for simulation of EM waves propagation in laser with static and dynamic gain models
Conference proceeding

An FDTD algorithm for simulation of EM waves propagation in laser with static and dynamic gain models

A. A. Al-Jabr, B. S. Ooi and M. A. Alsunaidi
2013 Saudi International Electronics, Communications and Photonics Conference, pp.1-5
01/01/2013
DOI: https://doi.org/10.1109/SIECPC.2013.6550991

Abstract

Dynamic Gain Equations FDTD Finite difference methods Four-level system Gain Medium Heuristic algorithms laser Laser modes Materials Mathematical model Static Gain Time-domain analysis Two-level System
This paper presents methods of simulating gain media in the finite difference time-domain (FDTD) algorithm utilizing a generalized polarization formulation. The gain can be static or dynamic. For static gain, Lorentzian and non-Lorentzian models are presented and tested. For the dynamic gain, rate equations for two-level and four-level models are incorporated in the FDTD scheme. The simulation results conform with the expected behavior of wave amplification and dynamic population inversion.

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