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7 March 2014 High power and high efficiency 14xx-nm wavelength Fabry-Perot lasers
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We report on the performance of our high power and high efficiency 14xx nm lasers in different formats as packaged on conduction cooled packages using soft solder. Single emitters exhibited output powers as high as 6 watts, while six emitter minibars output 20 W, and 20% fill factor (ff) bars provided over 40 W of output power. In all cases the maximum conversion efficiency was greater than 40% and the maximum power achievable was limited by thermal rollover. These same 20% ff bars output close to 90 W when operated quasi CW (QCW). Preliminary life testing of these bars for over 5000 hours under constant current mode has shown no significant degradation.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. Tanbun-Ek, R. Pathak, Z. Wang, H. Winhold, and S. Kim "High power and high efficiency 14xx-nm wavelength Fabry-Perot lasers", Proc. SPIE 8965, High-Power Diode Laser Technology and Applications XII, 896511 (7 March 2014);

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