253 mW/μm maximum power density from 9xx nm epitaxial laser structures with d/Γ greater than 1 μm

This study has presented the results for scaling the maximum power for two series of 940-962 nm diode lasers by scaling the d/Gamma ratio simultaneously with the device length. Experimental validation of this approach is also presented. A record maximum power of 25.3 W from a 100 mum aperture broad stripe laser operating at 940 nm and record power density of 253 mW/mum are obtained for a cavity length of 5 mm and a d/Gamma ratio of 1.17 mum.