Upper limit for the modulation bandwidth of a quantum dot laser
作者： Levon V. Asryan , Robert A. Suris
DOI: 10.1063/1.3446968
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摘要: We derive a closed-form expression for the upper limit modulation bandwidth of semiconductor quantum dot (QD) laser. The highest possible increases directly with overlap integral electron and hole wave functions in QD, number QD-layers, surface density QDs layer, is inversely proportional to inhomogeneous line broadening caused by QD-size dispersion. At 10% fluctuations 100% overlap, single QD-layer laser can be as high 60 GHz.
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