The potential and global outlook of integrated photonics for quantum technologies

Emanuele Pelucchi, Giorgos Fagas, Igor Aharonovich, Dirk Englund, Eden Figueroa, Qihuang Gong, Hübel Hannes, Jin Liu, Chao Yang Lu, Nobuyuki Matsuda, Jian Wei Pan, Florian Schreck, Fabio Sciarrino, Christine Silberhorn, Jianwei Wang, Klaus D. Jöns

Research output: Contribution to journalReview articlepeer-review

37 Citations (Scopus)


Integrated quantum photonics uses classical integrated photonic technologies and devices for quantum applications. As in classical photonics, chip-scale integration has become critical for scaling up and translating laboratory demonstrators to real-life technologies. Integrated quantum photonics efforts are centred around the development of quantum photonic integrated circuits, which can be monolithically, hybrid or heterogeneously integrated. In this Roadmap, we argue, through specific examples, for the value that integrated photonics brings to quantum technologies and discuss what applications may become possible in the future by overcoming the current roadblocks. We provide an overview of the research landscape and discuss the innovation and market potential. Our aim is to stimulate further research by outlining not only the scientific challenges of materials, devices and components associated with integrated photonics for quantum technologies but also those related to the development of the necessary manufacturing infrastructure and supply chains for delivering these technologies to the market.

Original languageEnglish
Pages (from-to)194-208
Number of pages15
JournalNature Reviews Physics
Issue number3
Publication statusPublished - 2022 Mar

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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