  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.
