Abstract
Semiconductor lasers with a 10 μm wide lateral waveguide of a mesa-stripe design were developed and their light characteristics were studied. Lasers with a 4.6mm long cavity is shown to have a continuous wave (CW) optical power of 2.6W at a heatsink temperature of 25◦C. Lasers with a shorter cavity (< 3mm) showed a lower value of the maximum optical power due to a thermal rollover of the light-current curve.
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