Send to

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2012 Jan 15;37(2):130-2. doi: 10.1364/OL.37.000130.

Black-light continuum generation in a silica-core photonic crystal fiber.

Author information

  • 1Institut FEMTO-ST, Département d’Optique P M Duffieux, Université de Franche-Comté, CNRS, Besançon, France. thibaut.sylvestre@univ‐


We report the observation of a broadband continuum spanning from 350 to 470 nm in the black-light region of the electromagnetic spectrum as a result of picosecond pumping a solid-core silica photonic crystal fiber at 355 nm. This was achieved despite strong absorption and a large normal dispersion of silica glass in the UV. Further investigations reveal that the continuum generation results from the interplay of intermodally phase-matched four-wave mixing and cascaded Raman scattering. We also discuss the main limitations in terms of bandwidth and power due to temporal walk-off, fiber absorption, and the photo darkening effect, and we suggest simple solutions.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center