Si-waveguide-coupled Membrane InGaAsP-multiple-quantum-well Photodetector with Large Bandwidth at High Optical Input Power

A Si-waveguide-coupled membrane photodetector (PD) with an InGaAsP multiple-quantum-well absorption layer shows a fiber-to-PD responsivity of 0.4 A/W and 3-dB bandwidth over 20 GHz at a fiber input power up to +5 dBm.