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Proceedings Paper

High-intensity UV laser inscription of fibre Bragg gratings and comparison with other fabrication techniques
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Paper Abstract

Using high-intensity (around 200 GW/cm2) femtosecond 264 nm laser light and phase mask technique, Bragg grating inscription in a range of different photosensitive and standard telecom fibres (both H2-free and H2-loaded) was studied. The dependencies of the induced refractive index modulation versus the incident fluence were compared with similar dependencies for gratings fabricated by other existing methods. It was shown that at high-intensity UV laser irradiation, two-quantum photoreactions occur in the irradiated fibre core, which results in a significant photosensitivity enhancement of the investigated fibres in comparison with conventional low-intensity 248 nm exposure (by 6-128 times, depending on fibre type and irradiation intensity).

Paper Details

Date Published: 8 June 2005
PDF: 11 pages
Proc. SPIE 5827, Opto-Ireland 2005: Photonic Engineering, (8 June 2005); doi: 10.1117/12.601158
Show Author Affiliations
Stephen A. Slattery, National Univ. of Ireland, Univ. College Cork (Ireland)
David N. Nikogosyan, National Univ. of Ireland, Univ. College Cork (Ireland)


Published in SPIE Proceedings Vol. 5827:
Opto-Ireland 2005: Photonic Engineering
Thomas J. Glynn; John T. Sheridan; Brian W. Bowe; Ronan F. O'Dowd; Gerard M. O'Connor; Aidan J.H. Flanagan; Gerard D. O'Sullivan; Gerald Byrne; Jonathan Magee, Editor(s)

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