TY  - JOUR
T1  - A Study of Dynamic Characterizations of GaAs/AlGaAs Self-Assembled Quantum Dot Lasers
AU - Nahri, D. Ghodsi AU - Rokn-Abadi, M. Rezaee AU - Arabshahi, H. 
JO  - Journal of Engineering and Applied Sciences
VL  - 6
IS  - 1
SP  - 58
EP  - 63
PY  - 2011
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2011.58.63
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2011.58.63
KW  - gain saturation
KW  -Runge-Kutta method
KW  -control group
KW  -calculation
KW  -single mode
KW  -Self-assembled quantum dot laser
AB  - In this research, we have solved the rate equations for GaAs/AlGaAs self-assembled quantum dot laser with considering the homogeneous and inhomogeneous broadening of the optical gain using 4th order Runge-Kutta method. With increasing the Full Width at Half Maximum (FWHM) of homogeneous broadening, the threshold current, turn-on delay and steady-state photons increase because of increasing the density of states in the central group. The calculation results show also that the simulated self-assembled dot laser reaches the steady-state faster and the lasing emission is not single mode due to the gain saturation.
ER  -