Strained-layer multiple quantum well distributed Bragg reflector lasers with a fast monitoring photodiode

Abstract
We describe a photonic integrated circuit composed of a distributed Bragg reflector laser and a fast monitoring photodiode operating at 1.54 μm wavelength. The integrated waveguide photodiode has a 3 dB bandwidth of 2 GHz with 1.2 mA/mW responsivity. We demonstrate ‘‘on chip’’ monitoring of a digitally modulated laser signal at 2 Gbit/s.