Effect of excited states on light-current characteristic of a quantum dot laser

Li Jiang; Levon V. Asryan

doi:10.1117/12.699755

6 February 2007 Effect of excited states on light-current characteristic of a quantum dot laser

Li Jiang, Levon V. Asryan

Proceedings Volume 6481, Quantum Dots, Particles, and Nanoclusters IV; 648108 (2007) https://doi.org/10.1117/12.699755
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Excited-state-mediated capture of carriers from the waveguide into the lasing ground-state in quantum dots (QDs) is studied. Such a two-step capture places a fundamental limitation on ground-state lasing - the output power saturates at high injection currents. The saturation power is controlled by the transition time between the excited- and ground-state in a QD. The longest, cut-off transition time exists, beyond which no ground-state lasing is possible.

Citation Download Citation

Li Jiang and Levon V. Asryan "Effect of excited states on light-current characteristic of a quantum dot laser", Proc. SPIE 6481, Quantum Dots, Particles, and Nanoclusters IV, 648108 (6 February 2007); https://doi.org/10.1117/12.699755

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