Group-velocity symmetry in photonic crystal fibre for ultra-tunable quantum frequency conversion

C. Parry, P. B. Main, T. A. Wright, P. J. Mosley

Research output: Contribution to journalArticlepeer-review

3 Citations (SciVal)


Low-noise frequency conversion of single photons is a critical tool in establishing fibre-based quantum networks. We show that a single photonic crystal fibre can achieve frequency conversion by Bragg-scattering four-wave mixing of source photons from an ultra-broad wavelength range by engineering a symmetric group velocity profile. Furthermore, we discuss how pump tuning can mitigate realistic discrepancies in device fabrication. This enables a single highly adaptable frequency conversion interface to link disparate nodes in a quantum network via the telecoms band.

Original languageEnglish
Article number075202
JournalJournal of Optics (United Kingdom)
Issue number7
Publication statusPublished - 16 Jun 2021


  • Communications
  • Fibre
  • Frequency conversion
  • Photonic crystal fibre
  • Quantum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Group-velocity symmetry in photonic crystal fibre for ultra-tunable quantum frequency conversion'. Together they form a unique fingerprint.

Cite this