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Journal Articles Applied Physics Letters Year : 2011

A dual-mode quantum dot laser operating in the excited state

Abstract

A dual-mode laser operating in the excited states (ESs) of a quantum dot is realized by combining asymmetric pumping and external optical feedback stabilization. In generating two single-mode emission peaks, a mode separation ranging from 1.3-THz to 3.6-THz is demonstrated over temperature. This effect is attributed to the unique carrier dynamics of the quantum-dot gain medium via the excited state inhomogeneous linewidth coupled with a proper external control. These results are particularly important towards the development of future THz optoelectronic sources with compact size, low fabrication cost, and high performance.
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Dates and versions

hal-01166265 , version 1 (22-06-2015)

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Frédéric Grillot, Nader A Naderi, J. B Wright, R. Raghunathan, M. T. Crowley, et al.. A dual-mode quantum dot laser operating in the excited state. Applied Physics Letters, 2011, 99, pp.231110. ⟨10.1063/1.3667193⟩. ⟨hal-01166265⟩
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