Statistical characterization of the self-induced intensity modulation exhibited by AlGaAs junction lasers with proton stripes

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Abstract
Results of a statistical study of the self‐induced modulation present in the intensity emitted by stripe‐geometry (AlGa)As junction lasers are reported. The data indicate that narrowing the width of the proton‐delineated stripe from 12 to 8 μm substantially reduces the fraction of unaged lasers with modulation depths greater than about 40% and increases the minimum frequency at which self‐induced intensity modulation occurs. Further analysis of the statistical data also suggests that the epi‐growth system can play a significant role in determining the statistical distribution of the self‐induced modulation depth.