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Integrated quantum information science with photons

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationEuropean Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference (CLEO Europe - EQEC 2009), Munich
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Publication dateJun 2009
Pages1 - 1
Number of pages1
ISBN (Print)9781424440795
DOIs
StatePublished

Conference

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

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.

Additional information

Rose publication type: Conference contribution Terms of use: Copyright © 2009 IEEE. Reprinted from European Conference on Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference (CLEO Europe - EQEC 2009). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • quantum, photons

Event

European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference (CLEO Europe - EQEC )

Duration1 Jun 2009 → …
CountryGermany
CityMunich

Event: Conference

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DOI

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