Abstract
InAsSb self-assembled quantum-dot (QD) distributed feedback (DFB) lasers based on (001) InP substrate have been grown by metalorganic vapor-phase epitaxy. A highly tensile-strained InGaAs was used as the barrier layer for InAsSb QDs. Single-mode emissions near 1.87μm have been demonstrated from narrow ridge waveguide DFB lasers in continuous-wave operation at temperatures up to 320K (47°C), with a characteristics temperature of 55K up to temperature of 310K.
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