Room-temperature operation of InGaAsN quantum dot lasers grown by metalorganic chemical vapor deposition
An InGaAsN single-layer-QD laser structure was grown on GaAs substrates by metalorganic chemical vapor deposition. The ridge-waveguide edge emitting laser diodes (LD) were fabricated and characterized. We demonstrate room-temperature operation of InGaAsN QD lasers with an emission wavelength of 1078 nm. Electroluminescence spectra as a function of injection current showed that InGaAsN QD LDs lased from an excited QD state at RT. The evidence for QD-related absorption was obtained from the...[Show more]
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