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Evanescent field imaging of an optical fiber Bragg grating

Evanescent field imaging of an optical fiber Bragg grating
Evanescent field imaging of an optical fiber Bragg grating
We have investigated the evanescent field associated with an optical fiber Bragg grating using the sub-wavelength imaging properties of scanning near-field optical microscopy (SNOM). Imaging of either the field distribution within the grating, or the periodic refractive index changes along the grating can be performed by tuning the launched light on or off the grating resonance. These measurements reveal non-uniformity in the resonant standing-wave pattern that occur due to phase errors in the refractive index profile of the grating under study.
0003-6951
4058-4060
Mills, J.D.
3b139ebc-5875-4367-80e6-f7e94cf2d6a8
Hillman, C.W.J.
96abefd0-5735-4e47-931c-4e0fa1329e2c
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Blott, B.H.
3d85df1b-d990-437e-992b-f2ec51b03067
Mills, J.D.
3b139ebc-5875-4367-80e6-f7e94cf2d6a8
Hillman, C.W.J.
96abefd0-5735-4e47-931c-4e0fa1329e2c
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Blott, B.H.
3d85df1b-d990-437e-992b-f2ec51b03067

Mills, J.D., Hillman, C.W.J., Brocklesby, W.S. and Blott, B.H. (1999) Evanescent field imaging of an optical fiber Bragg grating. Applied Physics Letters, 75 (26), 4058-4060. (doi:10.1063/1.125535).

Record type: Article

Abstract

We have investigated the evanescent field associated with an optical fiber Bragg grating using the sub-wavelength imaging properties of scanning near-field optical microscopy (SNOM). Imaging of either the field distribution within the grating, or the periodic refractive index changes along the grating can be performed by tuning the launched light on or off the grating resonance. These measurements reveal non-uniformity in the resonant standing-wave pattern that occur due to phase errors in the refractive index profile of the grating under study.

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e-pub ahead of print date: 1999

Identifiers

Local EPrints ID: 77792
URI: http://eprints.soton.ac.uk/id/eprint/77792
ISSN: 0003-6951
PURE UUID: 6d01119b-e4bc-46ae-8a89-10f382633230
ORCID for W.S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712

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Date deposited: 11 Mar 2010
Last modified: 03 Dec 2019 02:05

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Contributors

Author: J.D. Mills
Author: C.W.J. Hillman
Author: W.S. Brocklesby ORCID iD
Author: B.H. Blott

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