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

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-qua...

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Bibliographic Details
Published in:Measurement science & technology 2007-01, Vol.18 (1), p.L1-L3
Main Authors: Ernst, T, Nikogosyan, D N
Format: Article
Language:English
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Summary: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.
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/18/1/L01