Sensitivity Enhancement in Low Cutoff Wavelength Long-Period Fiber Gratings by Cladding Diameter Reduction

Sensitivity Enhancement in Low Cutoff Wavelength Long-Period Fiber Gratings by Cladding Diameter Reduction

The diameter of long-period fiber gratings (LPFGs) fabricated in optical fibers with a low cutoff wavelength was be reduced by hydrofluoric acid etching, enhancing the sensitivity to refractive index by more than a factor of 3, to 2611 nm/refractive index unit in the range from 1.333 to 1.4278. The...

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Bibliographic Details
Main Authors: Ignacio Del Villar, Matthew Partridge, Wenceslao Eduardo Rodriguez, Omar Fuentes, Abian Bentor Socorro, Silvia Diaz, Jesus Maria Corres, Stephen Wayne James, Ralph Peter Tatam
Format: Article
Language:English
Published: MDPI AG 2017-09-01
Series:Sensors
Subjects:
fiber optics sensors
fiber bragg gratings
fibers
single-mode
etching
pH sensor
Online Access:https://www.mdpi.com/1424-8220/17/9/2094

Internet

https://www.mdpi.com/1424-8220/17/9/2094

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