WDM Transmission Using Quantum-Dash Mode-Locked Laser Diodes as Multi-Wavelength Source and Local Oscillator

Abstract

We demonstrate coherent WDM transmission using a pair of quantum-dash mode-locked laser-diodes – one to generate a multitude of optical carriers, and another to generate a multitude of LO tones. We transmit a line rate of 4 Tbit/s (23×45 GBd PDM-QPSK) over 75 km.