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A Theoretical Study of the Dynamical Behavior of SQW GaAs/AlGaAs Laser | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 28, Issue 20, 2010, Pages 6140-6148 PDF (876.08 K) | ||
| DOI: 10.30684/etj.28.20.13 | ||
| Author | ||
| Azhar I. Hassan | ||
| Abstract | ||
| In this work, the peak modal gain and the radiative and Nonradiative current densities for Single Quantum Well (SQW) GaAs/AlGaAs laser are studied theoretically with varying the well widths Lz=(200, 150, 100, and 75) Ǻ, at a bandgap discontinuity ΔEc of 0.1 eV, it was found that the highest value of the peak modal gain gmax=400 cm-1 is achieved at Lz=75 Ǻ, and the lower value to achieve transparency Ntr=0.5×1018 cm-3 at Lz=200 Ǻ .The optimum value for QW width to achieve the lower threshold current density Jth=481.5 A/cm2 at the same injected carrier density is Lz=100 Ǻ. | ||
| Keywords | ||
| SQW GaAs; Peak gain; Threshold current density | ||
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