External-cavity quantum-dot laser with silicon photonics waveguide mirror for four-wavelength simultaneous oscillation with an 800 GHz channel spacing

摘要

Using a single external-cavity laser combined with a silicon photonics nanowire waveguide chip and a 1.3 μm quantum dot gain chip integrated with a spot-size converter, four-wavelength simultaneous oscillation with an 800 GHz channel spacing was demonstrated. Stable four-wavelength simultaneous oscillation and low relative intensity noise were obtained.