期刊
OPTICAL MATERIALS EXPRESS
卷 12, 期 11, 页码 4210-4222出版社
Optica Publishing Group
DOI: 10.1364/OME.458951
关键词
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资金
- Ministero dell'Istruzione, dell'Universita e della Ricerca [PIR01-00008, R18SPB8227]
- European Research Council [740355]
- Agence Nationale de la Recherche [ANR-10-LABX-0074-01, ANR-18-CE080016-01]
- SapienzaUniversita di Roma [AR22117A7B01A2EB, AR22117A8AFEF609, RG12117A84DA7437]
This study proposes a method for characterizing glass optical fibers using X-ray absorption as a nondestructive technique. By conducting absorption contrast X-ray computed micro-tomography measurements, information about the spatial profile of the fiber refractive index at optical frequencies is obtained and validated by comparing with complementary characterization techniques.
In spite of their ubiquitous applications, the characterization of glass fibers by means of all-optical techniques is still facing some limitations. Recently, X-ray absorption has been proposed as a method for visualizing the inner structure of both standard and microstructure optical fibers. Here, we exploit X-ray absorption as nondestructive technique for the characterization of glass optical fibers. Starting from absorption contrast X-ray computed micro-tomography measurements, we obtain information about the spatial profile of the fiber refractive index at optical frequencies. We confirm the validity of our approach by comparing its results with complementary characterization techniques, based on electron spectroscopy or multiphoton microscopy.(c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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