Modulation Response of Semiconductor Quantum-Dot LasersReportar como inadecuado

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1 FOTON - Fonctions Optiques pour les Technologies de l-informatiON

Abstract : A new expression of the modulation transfer function is derived for quantum dot QD lasers. The analytical approach is based on a cascade relaxation model taking into account three QD energy levels such as the wetting layer WL, the 1st excited state ES as well as the ground state GS. From the analysis, we demonstrate that the carrier escape from GS to ES is responsible for a non-zero resonance frequency at low bias powers.

Autor: Cheng Wang - Frederic Grillot - Jacky Even -



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