Photonic quantum technologies

Jeremy L. O'Brien, Akira Furusawa, Jelena Vučković

Research output: Contribution to journalReview articlepeer-review

1345 Citations (Scopus)


The first quantum technology that harnesses quantum mechanical effects for its core operation has arrived in the form of commercially available quantum key distribution systems. This technology achieves enhanced security by encoding information in photons such that an eavesdropper in the system can be detected. Anticipated future quantum technologies include large-scale secure networks, enhanced measurement and lithography, and quantum information processors, which promise exponentially greater computational power for particular tasks. Photonics is destined to have a central role in such technologies owing to the high-speed transmission and outstanding low-noise properties of photons. These technologies may use single photons, quantum states of bright laser beams or both, and will undoubtedly apply and drive state-of-the-art developments in photonics.

Original languageEnglish
Pages (from-to)687-695
Number of pages9
JournalNature Photonics
Issue number12
Publication statusPublished - 1 Dec 2009
Externally publishedYes


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