Controlling Quantum Correlations in Massively Multichannel Optical Networks

Ravitej Uppu, Tom Wolterink, Willem L. Vos, Klaus J. Boller, Pepijn W.H. Pinkse

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


Summary form only given. Quantum optics experiments require ultimate control over the propagation of light in linear optical networks to realize programmable photon correlations [1]. Integrated optics provides a robust and low-loss platform for implementing such linear optical networks. However, to achieve ultimate control on the quantum state of light, it is necessary to program the network [2]. Tuning the network for controlled multiphoton correlations involves optimization algorithms which scale inefficiently with the network size and photon number. Therefore, it is challenging to scale up this approach to massively multichannel networks, which are required for large-scale implementations of quantum information processing and quantum communication.Here, we propose a novel method to achieve ultimate control on quantum light propagation through the adaptive control of phases at input channels of a massively multichannel network. We utilize an on-chip array of 3300 nearest-neighbor coupled silicon nitride waveguides as the network. We employ complex wavefront shaping methods, which enabled the creation of programmable linear optical networks in opaque scattering media [3,4], to realize a network with programmable quantum correlations in a fixed network [5]. Using a high brightness photon-pair source, we demonstrate programmable Hong-Ou-Mandel-like bunching or antibunching of photons in a fully tunable multichannel network as predicted by our theoretical work [6]. These results enable programmable photon correlations on fixed massively multichannel optical networks with the potential for large-scale implementation of quantum simulators and quantum logic gates. We will report on the progress of this project.
Original languageEnglish
Title of host publicationLasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC, 2017 Conference on)
Place of PublicationMunich, Germany
ISBN (Electronic)978-1-5090-6736-7
ISBN (Print)978-1-5090-6737-4
Publication statusPublished - 30 Oct 2017
EventEuropean Conference on Lasers and Electro-Optics, CLEO_Europe 2017 - ICM Centre of the New Munich Trade Fair Centre, Munich, Germany
Duration: 25 Jun 201729 Jun 2017


ConferenceEuropean Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Abbreviated titleCLEO/Europe-EQEC 2017


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