Integrated quantum photonic waveguide circuits are a promising approach to realizing future photonic quantum technologies. Here, we present an integrated photonic quantum technology platform utilising the silicon-on-insulator material system, where quantum interference and the manipulation of quantum states of light are demonstrated in components orders of magnitude smaller than in previous implementations. Two-photon quantum interference is presented in a multi-mode interference coupler, and manipulation of entanglement is demonstrated in a Mach-Zehnder interferometer, opening the way to an all-silicon photonic quantum technology platform.
@article{arxiv.1201.6537,
title = {Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits},
author = {Damien Bonneau and Erman Engin and Kazuya Ohira and Nob Suzuki and Haruhiko Yoshida and Norio Iizuka and Mizunori Ezaki and Chandra M. Natarajan and Michael G. Tanner and Robert H. Hadfield and Sanders N. Dorenbos and Val Zwiller and Jeremy L. O'Brien and Mark G. Thompson},
journal= {arXiv preprint arXiv:1201.6537},
year = {2012}
}