On-chip quantum state generation by means of integrated frequency combs

Stefania Sciara, Michael Kues, Christian Reimer, Piotr Roztocki, Benjamin Wetzel, Yaron Bromberg, Brent E. Little, Sai T. Chu, David J. Moss, Lucia Caspani, Roberto Morandotti

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Entangled photon-pair sources are key building blocks towards the realization of applications in quantum information processing [1], quantum communications [2], as well as imaging and sensing with resolutions exceeding the classical limit [3]. The generation of, e.g. polarization, time-energy and time-bin entangled photon-pairs has been demonstrated using spontaneous parametric down-conversion (SPDC) in nonlinear second-order media, as well as spontaneous four-wave mixing (SFWM) in third-order nonlinear media. Specifically, nonlinear (third-order) interactions in on-chip microring resonators have been widely used to achieve classical frequency combs [4], mode-lock lasers [5], signal processing [6], etc. Integrated photonics can also find applications for quantum state generation in compact, scalable and efficient devices, required for future optical quantum circuits. In particular, solutions focusing on an integrated (on-chip) approach have been recently investigated and developed, including integrated quantum circuits, sources and detectors [7]. In contrast to waveguides, microring resonators [8] with narrow resonances and high Q-factors, offer an improvement in photon-pair generation efficiency, as well as a narrow photon-pair bandwidth, making them compatible with quantum optical devices (e.g. high temporal-resolution single-photon detectors and quantum memories). Most importantly, in contrast to non-resonant waveguides, where individuals photon-pairs, featured by one signal/idler frequency pair, are generally produced, resonant nonlinear cavities (e.g., microring resonators) allow the generation of correlated photon-pairs on multiple signal/idler frequency channels [9], due to their periodic and equidistant resonance structure.

Original languageAmerican English
Title of host publicationSummer Topicals Meeting Series, SUM 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Electronic)9781509065707
StatePublished - 17 Aug 2017
Event2017 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2017 - San Juan, Puerto Rico
Duration: 10 Jul 201712 Jul 2017

Publication series

NameSummer Topicals Meeting Series, SUM 2017


Conference2017 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2017
Country/TerritoryPuerto Rico
CitySan Juan

Bibliographical note

Publisher Copyright:
© 2017 IEEE.


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