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 language | English |
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Article number | L01 |
Pages (from-to) | L1-L3 |
Number of pages | 3 |
Journal | Measurement Science and Technology |
Volume | 18 |
Issue number | 1 |
DOIs | |
Publication status | Published - 30 Nov 2006 |
Keywords
- Bragg gratings
- Femtosecond UV light
- Fibre optics
- Single-photon absorption
- Two-photon absorption