Giant all-optical tunable group velocity dispersion in an optical fiber.


Journal Article

We realize a strongly dispersive material with large tunable group velocity dispersion (GVD) in a commercially-available photonic crystal fiber. Specifically, we pump the fiber with a two-frequency pump field that induces an absorbing resonance adjacent to an amplifying resonance via the stimulated Brillouin processes. We demonstrate all-optical control of the GVD by measuring the linear frequency chirp impressed on a 28-nanosecond-duration optical pulse by the medium and find that it is tunable over the range ± 7.8 ns(2)/m. The maximum observed value of the GVD is 10(9) times larger than that in a typical single-mode silica optical fiber. Our observations are in good agreement with a theoretical model of the process.

Full Text

Duke Authors

Cited Authors

  • Zhu, Y; Greenberg, JA; Husein, NA; Gauthier, DJ

Published Date

  • June 2014

Published In

Volume / Issue

  • 22 / 12

Start / End Page

  • 14382 - 14391

PubMed ID

  • 24977535

Pubmed Central ID

  • 24977535

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.22.014382


  • eng