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Avalanche electroluminescence offers the opportunity for standard CMOS devices to be used as light emitters. Although inefficient, avalanche breakdown is inherently a fast process and potentially offers benefits in terms of speed when compared to emission based on forward biased junctions. Furthermore, the wide spectral characteristics of avalanche electroluminescence in the visible range also allows...
The directionality and external optical power of CMOS light sources was improved a factor 3.9 by implementing integrated light reflectors in an unmodified CMOS process. Implementing such reflectors successfully demonstrated a CMOS micro-display and a 350 MHz Si optical communication link.
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