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Characterization of high performance waveguide-coupled linear mode avalanche photodiodes

We present experimental results for a Ge on Si separate absorption and charge multiplication (SACM) integrated waveguide coupled avalanche photodiode (APD) compatible with our silicon photonics platform. Our linear mode APD has a gain-bandwidth product in excess of 200 GHz. Furthermore, we demonstrate error free operation (BER<; 10-12) with our waveguide coupled linear mode APD using pseudo-random bit sequence (PBRS) data at 10 Gb/s.