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
2009
December
Validated
1
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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.
10.1109/ICICS.2009.5397636
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