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Fiber Bragg grating inscription by high-intensity femtosecond UV laser light: comparison with other existing methods of fabrication

Fiber Bragg grating inscription by high-intensity femtosecond UV laser light: comparison with other existing methods of fabrication
Fiber Bragg grating inscription by high-intensity femtosecond UV laser light: comparison with other existing methods of fabrication
By use of high-intensity (~200 GW/cm-loaded) was studied. The dependences of the induced refractive index modulation versus the incident fluence as well as the thermal decay curves were compared with similar dependences for gratings fabricated by other existing methods.
It was shown that with high-intensity UV laser irradiation, two-quantum photoreactions occur in the irradiated fiber core, that result in a significant photosensitivity enhancement of the investigated fibers in comparison with conventional low-intensity 248-nm exposure (by 6-128 times, depending on fiber type and irradiation intensity).
0740-3224
354-361
Slattery, Stephen A.
16dfcf40-02d9-4144-bb27-cd2a546a72ec
Nikogosyan, David N.
b1d0f0c1-158b-4694-b168-6c5c2f175b54
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Slattery, Stephen A.
16dfcf40-02d9-4144-bb27-cd2a546a72ec
Nikogosyan, David N.
b1d0f0c1-158b-4694-b168-6c5c2f175b54
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Slattery, Stephen A., Nikogosyan, David N. and Brambilla, Gilberto (2005) Fiber Bragg grating inscription by high-intensity femtosecond UV laser light: comparison with other existing methods of fabrication. Journal of the Optical Society of America B, 22 (2), 354-361. (doi:10.1364/JOSAB.22.000354).

Record type: Article

Abstract

By use of high-intensity (~200 GW/cm-loaded) was studied. The dependences of the induced refractive index modulation versus the incident fluence as well as the thermal decay curves were compared with similar dependences for gratings fabricated by other existing methods.
It was shown that with high-intensity UV laser irradiation, two-quantum photoreactions occur in the irradiated fiber core, that result in a significant photosensitivity enhancement of the investigated fibers in comparison with conventional low-intensity 248-nm exposure (by 6-128 times, depending on fiber type and irradiation intensity).

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Published date: 2005
Additional Information: Publication No: 3053

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Local EPrints ID: 38441
URI: https://eprints.soton.ac.uk/id/eprint/38441
ISSN: 0740-3224
PURE UUID: b728f7ea-4855-4d02-a429-844e56ab4481

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Date deposited: 08 Jun 2006
Last modified: 15 Jul 2019 19:02

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