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Full non-destructive characterization of doped optical fibre preforms

Full non-destructive characterization of doped optical fibre preforms
Full non-destructive characterization of doped optical fibre preforms
We present a non-destructive optical technique for a full characterization of rare-earth-doped optical preforms. Specifically, a combined profiling of refractive-index and active-dopant was carried out in the same region of optical
preforms by performing ray deflection and photoluminescence projection measurements, respectively. In this way, the optical core, delineated by the refractive index profile, was used to define the actual active dopant distributions within the core. Using the same experimental set-up, it was also possible to uniquely provide the maximum value of active-ion concentration reached inside the core. The study was carried out on an optical fiber preform sample doped with Yb3+ ions in high concentration. Comparison with independent measurements, such as those performed by a commercial refractive
index profiler and microstructural secondary-ion mass spectrometry analysis, confirms the accuracy of the proposed technique in the optical features evaluation.
108970C-1
SPIE
Vivona, Marilena
d5097400-64be-4d8a-99d2-8ecc6e3dbbed
Zervas, Michael
1840a474-dd50-4a55-ab74-6f086aa3f701
Carter, Adrian L.
Dong, Liang
Vivona, Marilena
d5097400-64be-4d8a-99d2-8ecc6e3dbbed
Zervas, Michael
1840a474-dd50-4a55-ab74-6f086aa3f701
Carter, Adrian L.
Dong, Liang

Vivona, Marilena and Zervas, Michael (2019) Full non-destructive characterization of doped optical fibre preforms. Carter, Adrian L. and Dong, Liang (eds.) In Fiber Lasers XVI: Technology and Systems: SPIE LASE 2-7 February 2019. vol. 10897, SPIE. 108970C-1 . (doi:10.1117/12.2508350).

Record type: Conference or Workshop Item (Paper)

Abstract

We present a non-destructive optical technique for a full characterization of rare-earth-doped optical preforms. Specifically, a combined profiling of refractive-index and active-dopant was carried out in the same region of optical
preforms by performing ray deflection and photoluminescence projection measurements, respectively. In this way, the optical core, delineated by the refractive index profile, was used to define the actual active dopant distributions within the core. Using the same experimental set-up, it was also possible to uniquely provide the maximum value of active-ion concentration reached inside the core. The study was carried out on an optical fiber preform sample doped with Yb3+ ions in high concentration. Comparison with independent measurements, such as those performed by a commercial refractive
index profiler and microstructural secondary-ion mass spectrometry analysis, confirms the accuracy of the proposed technique in the optical features evaluation.

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e-pub ahead of print date: 7 March 2019
Published date: 2019

Identifiers

Local EPrints ID: 429722
URI: http://eprints.soton.ac.uk/id/eprint/429722
PURE UUID: 6685f8b0-f304-4748-ad43-489d9df7b262
ORCID for Marilena Vivona: ORCID iD orcid.org/0000-0002-0765-8556
ORCID for Michael Zervas: ORCID iD orcid.org/0000-0002-0651-4059

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Date deposited: 04 Apr 2019 16:30
Last modified: 28 Apr 2022 01:35

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Contributors

Author: Marilena Vivona ORCID iD
Author: Michael Zervas ORCID iD
Editor: Adrian L. Carter
Editor: Liang Dong

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