Abstract
A novel superlinear graded index separate confinement laser diode structure is proposed. Single stripe diode lasers with 210 μm emitting aperture generate 3.2 W cw, and 6.3 W quasi-cw of light-output power in a phase-locked operation. The catastrophic optical density (30 W/mm) obtained for these lasers is better than that reported for devices with nonabsorbing mirrors.
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