2.5Gbps WDM-PON tunable light source hybrid integrated with superluminescent diode and polymeric waveguide Bragg reflector

We successfully fabricated a very compact tunable laser based on a superluminescent diode and a polymeric waveguide Bragg reflector for WDM-PON colorless light source. The tunable laser had a wavelength tuning range of 15 by thermo-optic tuning of the polymer waveguide at a low input power of 70 mW. This module operated in the direct modulation for 2.5 Gbit/s transmissions over 20 km.