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Strong fibre Bragg-gratings written in highly photosensitive Sn-doped fibres without H2-loading using KrF excimer and UV copper vapour lasers

Strong fibre Bragg-gratings written in highly photosensitive Sn-doped fibres without H2-loading using KrF excimer and UV copper vapour lasers
Strong fibre Bragg-gratings written in highly photosensitive Sn-doped fibres without H2-loading using KrF excimer and UV copper vapour lasers
Sn-doped silica optical fibres are temperature resistant, have high photosensitivity and low loss at 1.55 µm, properties which make them desirable for use in telecom components and sensors. Results of the fabrication of Bragg gratings in Sn-doped fibres using KrF excimer and UV copper vapour lasers will be presented. 1. Introduction Since the first observation in 1978 by Hill and co-workers [l], photosensitivity has launched many new fields in telecom and fibre optic based devices. In the last decade many papers have been published showing enormous progress both in grating writing techniques and fibre fabrication. New materials have been studied to increase the photosensitivity of telecom optical fibres that would otherwise be insufficient for many applications. SnO2-doping was proposed as a convenient co-dopant [2,3,4,5] because of its low-absorption in the third telecom window at 1.55 µm and high photosensitivity when exposed to 248 KrF excimer laser (KEL) radiation. Recently it was demonstrated that the reflectivity of gratings written with frequency-doubled copper vapour laser (CVL) is similar to the reflectivity of the gratings written with the frequency-doubled argon ion laser [6] . Moreover, the CVL can be used to write simultaneous multiple gratings with identical reflectivity [6,7]. In this work we study the photosensitivity of tin-doped fibres with the CVL and compare it to the photosensitivity achieved with the KEL.
Brambilla, G.
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Booth, H.J.
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Illy, E.K.
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Reekie, L.
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Rutt, H.N.
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Dong, L.
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Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Booth, H.J.
cff5a62c-e957-4653-b39d-20bb69b94641
Illy, E.K.
2d39506a-ca69-4e2d-883d-f876a394c37d
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Dong, L.
4a30a247-d676-42ef-aaf4-061579d6d64e

Brambilla, G., Booth, H.J., Illy, E.K., Reekie, L., Rutt, H.N. and Dong, L. (2001) Strong fibre Bragg-gratings written in highly photosensitive Sn-doped fibres without H2-loading using KrF excimer and UV copper vapour lasers. IoP meeting on 'In-fibre Gratings and Special Fibres' - Photonex 2001, Coventry, UK. 16 Oct 2001.

Record type: Conference or Workshop Item (Paper)

Abstract

Sn-doped silica optical fibres are temperature resistant, have high photosensitivity and low loss at 1.55 µm, properties which make them desirable for use in telecom components and sensors. Results of the fabrication of Bragg gratings in Sn-doped fibres using KrF excimer and UV copper vapour lasers will be presented. 1. Introduction Since the first observation in 1978 by Hill and co-workers [l], photosensitivity has launched many new fields in telecom and fibre optic based devices. In the last decade many papers have been published showing enormous progress both in grating writing techniques and fibre fabrication. New materials have been studied to increase the photosensitivity of telecom optical fibres that would otherwise be insufficient for many applications. SnO2-doping was proposed as a convenient co-dopant [2,3,4,5] because of its low-absorption in the third telecom window at 1.55 µm and high photosensitivity when exposed to 248 KrF excimer laser (KEL) radiation. Recently it was demonstrated that the reflectivity of gratings written with frequency-doubled copper vapour laser (CVL) is similar to the reflectivity of the gratings written with the frequency-doubled argon ion laser [6] . Moreover, the CVL can be used to write simultaneous multiple gratings with identical reflectivity [6,7]. In this work we study the photosensitivity of tin-doped fibres with the CVL and compare it to the photosensitivity achieved with the KEL.

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Published date: 2001
Venue - Dates: IoP meeting on 'In-fibre Gratings and Special Fibres' - Photonex 2001, Coventry, UK, 2001-10-16 - 2001-10-16

Identifiers

Local EPrints ID: 17104
URI: http://eprints.soton.ac.uk/id/eprint/17104
PURE UUID: fafa92f9-02dd-4d74-90c1-44de9410db4c

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Date deposited: 14 Sep 2005
Last modified: 22 Jul 2020 16:33

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