Title :
An FDTD algorithm for simulation of EM waves propagation in laser with static and dynamic gain models
Author :
Al-Jabr, A.A. ; Ooi, Boon S. ; Alsunaidi, M.A.
Author_Institution :
Photonics Lab., KAUST, Thuwal, Saudi Arabia
Abstract :
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.
Keywords :
finite difference time-domain analysis; laser modes; laser theory; light polarisation; population inversion; EM waves propagation; FDTD algorithm; Lorentzian model; dynamic gain models; dynamic population inversion; finite difference time-domain algorithm; gain media; generalized polarization formulation; nonLorentzian model; rate equations; static gain models; wave amplification; Equations; Finite difference methods; Heuristic algorithms; Laser modes; Materials; Mathematical model; Time-domain analysis; Dynamic Gain; FDTD; Four-level system; Gain Medium; Static Gain; Two-level System; laser;
Conference_Titel :
Electronics, Communications and Photonics Conference (SIECPC), 2013 Saudi International
Conference_Location :
Fira
Print_ISBN :
978-1-4673-6196-5
Electronic_ISBN :
978-1-4673-6194-1
DOI :
10.1109/SIECPC.2013.6550991
