Quantum photonic circuits for optical signal processing

Piotr Roztocki*, Michael Kues, Christian Reimer, Luca Razzari, Roberto Morandotti, Lucia Caspani, Matteo Clerici, Marcello Ferrera, Marco Peccianti, Alessia Pasquazi, Brent E. Little, Sai T. Chu, David J. Moss

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this talk, the physics of microring resonators is discussed in the classical and quantum regimes, in the context of the exploitation of chi-3 effects in these cavities as done by our group. Through the implementation of a novel microring pumping scheme and a quantum reinterpretation of the frequency comb, we present an integrated platform for the generation of quantum optical states spread over multiple optical modes. The scheme allows for highly stable and potentially fullyintegrable quantum light sources. Following the demonstration of a multiplexed heralded photon source, the scheme also enabled the first demonstration of a new nonlinear process on the integrated platform (type II spontaneous four-wave mixing) allowing the first direct generation of polarization-diverse photon pairs, where the first time two ring modes can be pumped in a stable configuration.

Original languageEnglish
Title of host publication2015 Spatiotemporal Complexity in Nonlinear Optics (SCNO)
ISBN (Print)9781467380614
Publication statusPublished - 2015
Event2015 Spatiotemporal Complexity in Nonlinear Optics - Como, Italy
Duration: 31 Aug 20154 Sept 2015


Conference2015 Spatiotemporal Complexity in Nonlinear Optics
Abbreviated titleSCNO 2015


  • four-wave mixing
  • Integrated optics devices
  • Nonlinear optics
  • Parametric oscillators and amplifiers
  • Quantum optics

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Quantum photonic circuits for optical signal processing'. Together they form a unique fingerprint.

Cite this