Superluminescent Light-Emitting Diodes (SLEDs) Operating at Ultra-High Ambient Temperatures

SLEDs are attractive light sources for various applications in the visible and near-infrared spectral region. Some applications require operation at ultra-high ambient temperatures of up to 150° C. We show that the electro-optical device performance at such challenging conditions is limited by the thermal degradation of the material gain and by the non-radiative Auger recombination processes that are strongly increasing with temperature. Still, with proper design choices, several milliwatts of optical output power can be generated at ultra-high chip temperatures.