Through-the-coating femtosecond laser inscription of very short fiber Bragg gratings for acoustic and high temperature sensing applications

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DOIResolve DOI: http://doi.org/10.1364/OE.25.025435
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TypeArticle
Journal titleOptics Express
ISSN1094-4087
Volume25
Issue21
Pages2543525446
AbstractVery short Type I and Type II Bragg gratings, on the order of 100 µm in length, are written through the protective polyimide coating of high NA and standard single mode silica optical fibers with infrared femtosecond pulses and a phase mask. By exploiting the transverse walk-off of apertured diffracted beams produced by the phase mask and a slit placed proximate the mask, complex grating structures are fabricated and characterized. These gratings are suitable for structural health monitoring based on acoustic measurements or localized high-temperature measurements.
Publication date
PublisherOptical Society of America
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
NPARC number23002484
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Record identifierce2e966f-aea4-4184-9459-8ce610b1741a
Record created2017-11-16
Record modified2017-11-16
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