Quantum interference and manipulation of entanglement in silicon wire waveguide quantum circuits
Damien Bonneau, Erman Engin, K Ohira, Naoki Suzuki, H. Yoshida, Norio Iizuka, Mizunori Ezaki, Chandra M. Natarajan, Michael G. Tanner, Robert H. Hadfield, Sander N. Dorenbos, V. Zwiller, Jeremy L. O’Brien, Mark G. Thompson · New Journal of Physics · 2012
Integrated quantum photonic waveguide circuits are a promising approach to realizing future photonic quantum technologies. Here, we present an integrated photonic quantum technology platform utilizing 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 previous implementations. Two-photon quantum interference is presented in a multi-mode interference coupler, and the manipulation of entanglement is demonstrated in a Mach–Zehnder interferometer, opening the way to an all-silicon photonic quantum technology platform.