Optical fiber random grating-based multiparameter sensor

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DOIResolve DOI: http://doi.org/10.1364/OL.40.005514
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TypeArticle
Journal titleOptics Letters
ISSN0146-9592
1539-4794
Volume40
Issue23
Pages55145517
AbstractA novel multiparameter fiber-optic sensor based on a femtosecond laser micromachined random grating is proposed and demonstrated to realize simultaneous measurement of temperature, axial strain, and surrounding refractive index. A wavelength-division spectral cross-correlation algorithm is adopted to extract the phase variation induced spectral shift responding to different external disturbances. Sensitivities of 10.32 pm/°C, 1.24 pm/με, and −1520.6  pm/RIU were achieved for temperature, axial strain, and surrounding refractive index, respectively. The fiber random grating without phase mask fabrication and high physical strength is an excellent alternative aiming at simple and compact multifunctional fiber sensors.
Publication date
PublisherThe Optical Society
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
NPARC number23000059
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Record identifier72b96278-516a-4936-9b18-5753f33e42b3
Record created2016-06-01
Record modified2016-06-01
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