Single-quantum mechanism of Bragg grating inscription in a Ge/B codoped fibre by high-intensity 264 nm femtosecond pulses

T. Ernst*, D. N. Nikogosyan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We studied fibre Bragg grating fabrication in Ge/B codoped photosensitive fibre using high-intensity (60-230 GW cm-2) 264 nm, 220 fs laser pulses The ratio of the refractive index modulation to the incident fluence was found to be independent of the irradiation intensity which points to a single-quantum mechanism of Bragg grating fabrication under the stated experimental conditions.

Original languageEnglish
Article numberL01
Pages (from-to)L1-L3
Number of pages3
JournalMeasurement Science and Technology
Volume18
Issue number1
DOIs
Publication statusPublished - 30 Nov 2006

Keywords

  • Bragg gratings
  • Femtosecond UV light
  • Fibre optics
  • Single-photon absorption
  • Two-photon absorption

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