Here we demonstrate quantum interference of photons on a Silicon chip produced from a single ring resonator photon source. The source is seamlessly integrated with a Mach-Zehnder interferometer, which path entangles degenerate bi-photons produced via spontaneous four wave mixing in the Silicon ring resonator. The resulting bi-photon N00N state is controlled by varying the relative phase of the integrated Mach-Zehnder interferometer, resulting in high two-photon interference visibilities of V~96%. Furthermore, we show that the interference can be produced using pump wavelengths tuned to all of the ring resonances accessible with our tunable lasers (C+L band). This work is a key demonstration towards the simplified integration of multiple photon sources and quantum circuits together on a monolithic chip, in turn, enabling quantum information chips with much greater complexity and functionality.
@article{arxiv.1504.04335,
title = {On-Chip Quantum Interference from a Single Silicon Ring Resonator Source},
author = {Stefan F. Preble and Michael L. Fanto and Jeffrey A. Steidle and Christopher C. Tison and Gregory A. Howland and Zihao Wang and Paul M. Alsing},
journal= {arXiv preprint arXiv:1504.04335},
year = {2015}
}