Room-temperature lasing operation of a quantum-dot vertical-cavity surface-emitting laser

Room-temperature lasing operation of a quantum-dot vertical-cavity surface-emitting laser

Self-assembled growth of quantum dots by molecular-beam epitaxy is used to form the active region of a vertical-cavity surface-emitting laser (VCSEL). Ten layers of InGaAs quantum dots are stacked in order to increase the gain. This quantum-dot VCSEL has a continuous-wave operating current of 32 mA...

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Veröffentlicht in:Applied physics letters 1996-11, Vol.69 (21), p.3140-3142
Hauptverfasser: Saito, Hideaki, Nishi, Kenichi, Ogura, Ichiro, Sugou, Shigeo, Sugimoto, Yoshimasa
Format: Artikel
Sprache:eng
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Zusammenfassung:Self-assembled growth of quantum dots by molecular-beam epitaxy is used to form the active region of a vertical-cavity surface-emitting laser (VCSEL). Ten layers of InGaAs quantum dots are stacked in order to increase the gain. This quantum-dot VCSEL has a continuous-wave operating current of 32 mA at room temperature. Emission spectra at various current injections demonstrate that the lasing action is associated with a higher-order transition in the quantum dots.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.116808