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Optimizing and engineering EuSe-PbSe0.78Te0.22-EuSe multiple-quantum-well laser structures

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3 Author(s)
Khodr, M.F. ; Hallib, Fort Worth, TX, USA ; McCann, P.J. ; Mason, B.A.

In this paper, we present a simulation model to optimize and engineer EuSe-PbSe0.78Te0.22-EuSe single-quantum-well lasers. We solve for the effects of strong nonparabolicity of the bands on the optimization process. The optical energy confined in the active region is also calculated for multiple-quantum-well (MQW) lasers. The modal gain-current density relation for this structure is obtained for parabolic band and nonparabolic band systems. The relationships between threshold current, cavity length, and mirror reflectivity are obtained for the MQW structure assuming parabolic and nonparabolic band systems. Finally, in addition to a 20% shift in the output lasing energy, it is concluded that the effects of nonparabolicity on the threshold current values are significant for short-cavity lasers and decrease with an increase in the cavity length

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Quantum Electronics, IEEE Journal of  (Volume:34 ,  Issue: 9 )