Development and Application of Er-Doped Silicon-Rich Silicon Nitrides and Er Silicates for On-Chip Light Sources

2011 
On-chip light sources are a critical part for an integrated Si photonic technology, yet they lag other photonic components in their level of development. In this chapter, Er used as an optical dopant and utilizing its intra-4f transition at 1.54µm will be introduced as a viable means for on-chip light generation that has the advantage of being compatible with long-distance telecom as well. First, a general introduction to the topic of developing a Si-based/compatible light source will be presented, with emphasis on the need for a novel high-index material for Er-doping that can provide both a higher Er content and refractive index than has been reported so far. Second, Er-doped silicon-rich silicon nitride (SRSN) and Er silicates will be introduced as a promising host material for compact on-chip light sources. Finally, results of fabricating basic photonic components using Er-doped SRSN and Er-silicates will be presented.
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