Four-wave mixing in a silicon microring resonator using a self-pumping geometry

We report on four-wave mixing in a silicon microring resonator using a self-pumping scheme instead of an external laser. The ring resonator is inserted in an external-loop cavity with a fibered semiconductor amplifier as a source of gain. The silicon microring acts as a filter and we observe lasing in one of the microring's resonances. We study correlations between the signal and idler generated beams using a Joint Spectral Density experiment.