Stable above-threshold linewidth enhancement factor in a 1.52-μm InAs/InP (311B) quantum dot laser


The alpha<sub>H</sub>-factor behavior with current is investigated in a 1.52 mum InAs/InP (311B) QD laser. It is shown that due to low gain compression effects, no divergence of the alpha<sub>H</sub>-factor occurs unlike 1.3 mum InAs/GaAs QD lasers. 


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