Cross-polarized photon-pair generation and bi-chromatically pumped optical parametric oscillation on a chip

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Nonlinear optical processes are one of the most important tools in modern optics with a broad spectrum of applications in, for example, frequency conversion, spectroscopy, signal processing and quantum optics. For practical and ultimately widespread implementation, on-chip devices compatible with electronic integrated circuit technology offer great advantages in terms of low cost, small footprint, high performance and low energy consumption. While many on-chip key components have been realized, to date polarization has not been fully exploited as a degree of freedom for integrated nonlinear devices. In particular, frequency conversion based on orthogonally polarized beams has not yet been demonstrated on chip. Here we show frequency mixing between orthogonal polarization modes in a compact integrated microring resonator and demonstrate a bi-chromatically pumped optical parametric oscillator. Operating the device above and below threshold, we directly generate orthogonally polarized beams, as well as photon pairs, respectively, that can find applications, for example, in optical communication and quantum optics.

Original languageEnglish
Article number8236
JournalNature Communications
Early online date14 Sept 2015
Publication statusPublished - Sept 2015

ASJC Scopus subject areas

  • General Biochemistry,Genetics and Molecular Biology
  • General Chemistry
  • General Physics and Astronomy


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