Controlling the performance of GaAs–AlGaAs quantum-cascade lasers via barrier height modifications

A series of GaAs/AlGaAs quantum-cascade lasers has been studied in which the confinement of the upper lasing level is systematically varied. This is achieved by modifying the aluminum composition, and hence the height, of a single barrier in each active region. Increasing the height of the barrier i...

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Veröffentlicht in:	Applied physics letters 2000-02, Vol.76 (7), p.801-803
Hauptverfasser:	Wilson, L. R., Keightley, P. T., Cockburn, J. W., Skolnick, M. S., Clark, J. C., Grey, R., Hill, G.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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