Demonstration of error-free 25Gb/s duobinary transmission using a colourless reflective integrated modulator

We report on a hybrid reflective electroabsorption modulator-based photonic integrated circuit, demonstrating error-free 25.3Gb/s duobinary transmission (BER<;1×10-12) over 35km of SSMF. Colourless operation with 1.2dB OSNR variation over the C-band is confirmed.