Conference Publication Details
Mandatory Fields
Gity F.;Ansari L.
ICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing
Modeling the effects of DLTs and carrier transport on the turn-on delay, steady-state time and wavelength chirp of SCH-QW lasers
Optional Fields
Carrier transport Deep level traps Numerical modeling Quantum well (QW) laser Wavelength chirp
In this paper we drive a numerical model for a separate confinement heterostructure quantum well (SCH-QW) laser, as one of the key elements of photonic communications systems and networks. The physical effects of Deep Level Traps (DLTs) and carrier transport on the threshold current, turn-on delay, steady state time, transient response and wavelength chirp of a SCH-QW laser are modeled by means of finite difference method. This numerical model calculates the time-dependent variations of optical output phase, photon density and carrier densities in the SCH layer and QW region, self-consistently. These equations are also coupled with the trap density equation. The exact carrier dependence of the linewidth enhancement factor and the gain function for the QW laser are included. 2009 IEEE.
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