Integrated quantum information science with photons

A Politi, JCF Matthews, A Laing, A Peruzzo, P Kalasuwan, Mian Zhang, X-Q Zhou, GD Mashall, P Dekker, M Ams, M Withford, M Rodas, MJ Cryan, JG Rarity, AB Stefanov, S Yu, MG Thompson, JL O'Brien

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

1 Citation (Scopus)
349 Downloads (Pure)

Abstract

Quantum information science has shown that harnessing quantum mechanical effects can dramatically improve performance for certain tasks in communication, computation and measurement. Already a number of photonic quantum circuits have been realized for quantum metrology, lithography and quantum logic gates. However, these demonstrations have relied on large-scale (bulk) optical elements bolted to large optical tables, thereby making them inherently unscalable and confining them to the research laboratory. This paper reports on the implementation of quantum optic integrated circuits, which not only dramatically reduces the footprint of quantum circuits, but allows unprecedented stability and control of the optical path length; this reveals the possibility for realizing previously unfeasible large scale quantum circuits. Results from femtosecond laser directly-written quantum circuits are also discussed. A large range of chip-scale "photonic building blocks" have been realized using this so-called direct-write technique and they include multimode optical interconnects, directional couplers and interferometers. The directly written quantum circuits exhibited high 2 and 3-photon Hong-Ou-Mandel (HOM) interference visibilities of 95.8% plusmn 0.5 and 84% plusmn 3% respectively.
Original languageEnglish
Title of host publicationEuropean Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference (CLEO Europe - EQEC 2009), Munich
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 1
Number of pages1
ISBN (Print)9781424440795
DOIs
Publication statusPublished - Jun 2009
EventEuropean Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO Europe - EQEC ) - Munich, Germany
Duration: 1 Jun 2009 → …

Conference

ConferenceEuropean Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO Europe - EQEC )
CountryGermany
CityMunich
Period1/06/09 → …

Bibliographical note

Rose publication type: Conference contribution

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Keywords

  • quantum
  • photons

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    Politi, A., Matthews, JCF., Laing, A., Peruzzo, A., Kalasuwan, P., Zhang, M., Zhou, X-Q., Mashall, GD., Dekker, P., Ams, M., Withford, M., Rodas, M., Cryan, MJ., Rarity, JG., Stefanov, AB., Yu, S., Thompson, MG., & O'Brien, JL. (2009). Integrated quantum information science with photons. In European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference (CLEO Europe - EQEC 2009), Munich (pp. 1 - 1). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/CLEOE-EQEC.2009.5192705