Laser written waveguide photonic quantum circuits

Graham D. Marshall, Alberto Politi, Jonathan C F Matthews, Peter Dekker, Martin Ams, Michael J. Withford, Jeremy L. O'Brien

Research output: Contribution to journalArticle

226 Citations (Scopus)
20 Downloads (Pure)

Abstract

We report photonic quantum circuits created using an ultrafast laser processing technique that is rapid, requires no lithographic mask and can be used to create three-dimensional networks of waveguide devices. We have characterized directional couplers-the key functional elements of photonic quantum circuits-and found that they perform as well as lithographically produced waveguide devices. We further demonstrate high-performance interferometers and an important multi-photon quantum interference phenomenon for the first time in integrated optics. This direct-write approach will enable the rapid development of sophisticated quantum optical circuits and their scaling into three-dimensions.

Original languageEnglish
Pages (from-to)12546-12554
Number of pages9
JournalOptics Express
Volume17
Issue number15
DOIs
Publication statusPublished - 20 Jul 2009

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-15-12546]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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