On-chip quantum interference between silicon photon-pair sources

  title={On-chip quantum interference between silicon photon-pair sources},
  author={Joshua W. Silverstone and Damien Bonneau 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 Val Zwiller and Graham D. Marshall and John G. Rarity and Jeremy Lloyd O'Brien and Mark G. Thompson},
  journal={Nature Photonics},
A silicon-on-insulator device combining two four-wave-mixing photon-pair sources in an interferometer with a reconfigurable phase shifter is used to create and manipulate non-degenerate or degenerate, path-entangled or path-unentangled photon pairs. A quantum interference visibility of nearly 100% is observed on-chip. This device is a first step towards fully integrated quantum technologies. 

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