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Room temperature simultaneous three-state lasing in hybrid quantum well/quantum dot laser

Room temperature simultaneous three-state lasing in hybrid quantum well/quantum dot laser

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A hybrid quantum well/quantum dot active region is used to obtain simultaneous three-state lasing at room temperature, via ground state and first excited state transitions of the quantum dots and the lowest energy transition of a single quantum well. The device exhibits a threshold current density of 1125 A/cm2 for achieving simultaneous three-state lasing over ∼160 nm.

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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2012.0710
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