Abstract
A Si-Ge waveguide avalanche photodiode with loop reflector has been demonstrated to enhance the responsivity without compromising the speed. It enables a responsivity of 1.12 A/W, a bandwidth of 25 GHz, a build-up time limited gain-bandwidth product of 296 GHz, and a highest gain-bandwidth product of 497 GHz.
© 2021 The Author(s)
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