Abstract
Laser diodes and bars with high efficiency, power, and reliability are critical for a wide variety of applications including direct material processing and pumping high power and efficient fiber lasers and solid state lasers. We present progress towards the 80% power conversion efficiency goal of the DARPA Super High Efficiency Diode Sources (SHEDS) program. Currently, laser bars using JDSU SHEDS technology achieve as high as 72.7% total power conversion efficiency at room temperature and 80W operating power.
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