Short-wave infrared correlated photons from silicon waveguides

Lawrence M. Rosenfeld, Dominic A. Sulway, Mark G. Thompson, John G. Rarity, Joshua W. Silverstone

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


Quantum technologies that harness the properties of superposition and entanglement promise to revolutionise many fields, from information processing to metrology. Silicon-integrated quantum photonics operating in the telecom band suffers from deleterious two-photon absorption (TPA) [1,2]. Cross-TPA reduces the brightness and ultimately the heralding efficiency [3] of spontaneous four-wave mixing (SFWM) photon-pair sources, where single photons necessarily co-propagate with a bright pump. Nonlinear losses can be mitigated by pumping and generating photons with energies close to and beyond silicon's two-photon band edge [4,5]. We report the first quantum-correlated photon pairs in the 2.1 µm short-wave infrared (SWIR) band, produced on-chip from a silicon waveguide spiral.

Original languageEnglish
Title of host publicationEuropean Quantum Electronics Conference, EQEC_2019
PublisherOptical Society of America (OSA)
ISBN (Electronic)9781557528209
Publication statusPublished - 17 Oct 2019
EventEuropean Quantum Electronics Conference, EQEC_2019 - Munich, United Kingdom
Duration: 23 Jun 201927 Jun 2019

Publication series

NameOptics InfoBase Conference Papers
VolumePart F143-EQEC 2019


ConferenceEuropean Quantum Electronics Conference, EQEC_2019
Country/TerritoryUnited Kingdom

Structured keywords

  • Bristol Quantum Information Institute
  • QETLabs
  • Photonics and Quantum


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