High-output-voltage, high speed, high efficiencyuni-travelling-carrier waveguide photodiode

Abstract
A uni-travelling-carrier structure is applied to the high speed, high efficiency waveguide pin photodiode with the aim of increasing the maximum available output voltage. With a 50 Ω load, a 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.