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High photosensitivity in SnO2:SiO2 optical fibres

High photosensitivity in SnO2:SiO2 optical fibres
High photosensitivity in SnO2:SiO2 optical fibres
Enhanced photosensitivity has been achieved in tin-doped silica optical fibers. Refractive index modulations (~3.10-4) have been achieved by use of 248nm UV radiation. Studies performed on preform slides proved that the refractive index change can be ascribed to structural rearrangements induced by photochemical reactions. The modified structure has shown extreme stability, and gratings written in this fiber start to be erased above 600°C. Exposure of the fiber to 255 nm laser radiation showed that, at high fluence, the refractive index modulation saturates and does not exhibit any sign of decrease.
553-564
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Paleari, A.
8f5681e9-6393-4a6a-b346-3905b72e9dbd
Chiodini, N.
d516f93d-7d8e-4033-b1be-b33ad58bf4f6
Booth, H.
a7867d64-5652-4f62-bc68-58d1c64cafab
Brambilla, G.
815d9712-62c7-47d1-8860-9451a363a6c8
Pruneri, V.
0e97eb94-b682-409f-a107-ae6b84763f02
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Paleari, A.
8f5681e9-6393-4a6a-b346-3905b72e9dbd
Chiodini, N.
d516f93d-7d8e-4033-b1be-b33ad58bf4f6
Booth, H.
a7867d64-5652-4f62-bc68-58d1c64cafab

Brambilla, G., Pruneri, V., Reekie, L., Paleari, A., Chiodini, N. and Booth, H. (2001) High photosensitivity in SnO2:SiO2 optical fibres. Fiber & Integrated Optics, 20 (6), 553-564.

Record type: Article

Abstract

Enhanced photosensitivity has been achieved in tin-doped silica optical fibers. Refractive index modulations (~3.10-4) have been achieved by use of 248nm UV radiation. Studies performed on preform slides proved that the refractive index change can be ascribed to structural rearrangements induced by photochemical reactions. The modified structure has shown extreme stability, and gratings written in this fiber start to be erased above 600°C. Exposure of the fiber to 255 nm laser radiation showed that, at high fluence, the refractive index modulation saturates and does not exhibit any sign of decrease.

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Published date: 2001

Identifiers

Local EPrints ID: 13708
URI: https://eprints.soton.ac.uk/id/eprint/13708
PURE UUID: cd3c18e7-5400-484a-9737-755461e521fa

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Date deposited: 11 Jan 2005
Last modified: 10 Oct 2017 15:37

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