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Del Villar I, Cruz JL, Socorro AB, et al. Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point. Opt Express. 2016;24(16):17680-5doi: 10.1364/OE.24.017680.
Del Villar, I., Cruz, J. L., Socorro, A. B., Corres, J. M., & Matias, I. R. (2016). Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point. Optics express, 24(16), 17680-5. https://doi.org/10.1364/OE.24.017680
Del Villar, Ignacio, et al. "Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point." Optics express vol. 24,16 (2016): 17680-5. doi: https://doi.org/10.1364/OE.24.017680
Del Villar I, Cruz JL, Socorro AB, Corres JM, Matias IR. Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point. Opt Express. 2016 Aug 08;24(16):17680-5. doi: 10.1364/OE.24.017680. PMID: 27505736.
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Opt Express. 2016 Aug 08;24(16):17680-5. doi: 10.1364/OE.24.017680.

Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point.

Optics express

Ignacio Del Villar, Jose L Cruz, Abian B Socorro, Jesus M Corres, Ignacio R Matias

PMID: 27505736 DOI: 10.1364/OE.24.017680

Abstract

This work presents a refractive index sensor based on a long period fiber grating (LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning point at large wavelengths. The combination of these parameters results in an improved sensitivity of 8734 nm/refractive index unit (RIU) for the LP0,3 mode in the 1400-1650 wavelength range. This value is similar to that obtained with thin-film coated LPFGs, which permits to avoid the coating deposition step. The numerical simulations are in agreement with the experimental results.

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