We report an integrated photon pair source based on a CMOS-compatible microring resonator that generates multiple, simultaneous, and independent photon pairs at different wavelengths in a frequency comb compatible with fiber communication wavelength division multiplexing channels (200 GHz channel separation) and with a linewidth that is compatible with quantum memories (110 MHz). It operates in a self-locked pump configuration, avoiding the need for active stabilization, making it extremely robust even at very low power levels.
@article{arxiv.1403.6180,
title = {CMOS-compatible, multiplexed source of heralded photon pairs: towards integrated quantum combs},
author = {Christian Reimer and Lucia Caspani and Matteo Clerici and Marcello Ferrera and Michael Kues and Marco Peccianti and Alessia Pasquazi and Luca Razzari and Brent E. Little and Sai T. Chu and David J. Moss and Roberto Morandotti},
journal= {arXiv preprint arXiv:1403.6180},
year = {2014}
}