TY - JOUR
T1 - Effect of the number of stacking layers on the characteristics of quantum-dash lasers
AU - Khan, Mohammed Zahed Mustafa
AU - Bhattacharya, Pallab K.
AU - Ng, Tien Khee
AU - Ooi, Boon S.
AU - Schwingenschlögl, Udo
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2011/6/27
Y1 - 2011/6/27
N2 - A theoretical model is evaluated to investigate the characteristics of InAs/InP quantum dash (Qdash) lasers as a function of the stack number. The model is based on multimode carrier-photon rate equations and accounts for both inhomogeneous and homogeneous broadenings of the optical gain. The numerical results show a non monotonic increase in the threshold current density and a red shift in the lasing wavelength on increasing the stack number, which agrees well with reported experimental results. This observation may partly be attributed to an increase of inhomogeneity in the active region.
AB - A theoretical model is evaluated to investigate the characteristics of InAs/InP quantum dash (Qdash) lasers as a function of the stack number. The model is based on multimode carrier-photon rate equations and accounts for both inhomogeneous and homogeneous broadenings of the optical gain. The numerical results show a non monotonic increase in the threshold current density and a red shift in the lasing wavelength on increasing the stack number, which agrees well with reported experimental results. This observation may partly be attributed to an increase of inhomogeneity in the active region.
UR - http://hdl.handle.net/10754/315761
UR - http://www.opticsinfobase.org/abstract.cfm?URI=oe-19-14-13378
UR - http://www.scopus.com/inward/record.url?scp=79959902944&partnerID=8YFLogxK
U2 - 10.1364/OE.19.013378
DO - 10.1364/OE.19.013378
M3 - Article
C2 - 21747493
SN - 1094-4087
VL - 19
SP - 13378
JO - Optics Express
JF - Optics Express
IS - 14
ER -