High-output-voltage waveguide photodiode employing uni-traveling-carrier structure

摘要

A novel waveguide photodiode is proposed. This photodiode uses uni-traveling-carrier structure which makes it possible to simultaneously achieve high output voltage and high speed. With a 50-/spl Omega/ load, the photodiode having an external quantum efficiency of 32% yields an output voltage of 1.3 V with a bandwidth of 55 GHz and 0.45 V with a bandwidth of 70 GHz.