Numerical Study of the Evanescently Coupled One-Sided Junction Waveguide Photodiode

Abstract

The one-sided junction photodiode has a simple epitaxial layer structure, while maintaining the characteristics of high speed and high output power. An evanescently coupled one-sided junction waveguide photodiode is studied numerically and presented. The waveguide photodiode with 20 μm active region length leads to a responsivity of 0.435 A/W with a simulated bandwidth of 45 GHz.