Abstract:Photonic-integrated circuits (PICs) have become one of the most promising solutions to the burgeoning global data communication and are being envisioned to have revolutionary impact in many other emerging fields. This outlook requires future PICs to be significantly more broadband and cost-effective. The current germanium (Ge)-based active photonic devices in PICs are thus facing a new bandwidth-cost trade-off. Here, we demonstrate ultra-broadband, high-efficiency Ge photodetectors up to 1,630 nm operation wav… Show more
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