We theoretically and experimentally investigate the lateral mode behavior of quantum-dot lasers, and demonstrate the absence of filamentation up to 10/spl times/ threshold. The negative linewidth enhancement factor necessary for filamentation in highly-excited quantum dot lasers originates from the Coulomb coupling between quantum-dot and quantum-well states.
Absence of filamentation in quantum-dot lasers. Theory and experiment
2002-01-01
88351 byte
Conference paper
Electronic Resource
English
Absence of Filamentation in Quantum-Dot Lasers: Theory and Experiment
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