Title :
Refractive index measurements by fiber Bragg grating sensor
Author :
Iadicicco, A. ; Cusano, A. ; Persiano, G.V. ; Cutolo, A. ; Bernini, R. ; Giordano, M.
Author_Institution :
Dept. of Eng., Sannio Univ., Benevento, Italy
Abstract :
The numerical and experimental analysis on the use of thinned fiber Bragg gratings as refractive index sensors have been carried out. Wet chemical etching in a buffered hydrofluoric acid (HF) solution was used for sensor fabrication. Experimental characterization for an 8.5μm etched cladding sensor is presented demonstrating resolutions of ≈10-5 and ≈10-4 for outer refractive index around 1.45 and 1.333, respectively.
Keywords :
Bragg gratings; etching; fibre optic sensors; optical fibres; refractive index measurement; 8.5 micron; buffered hydrofluoric acid solution; etched cladding sensor; fiber Bragg grating sensor; optical fiber etching; refractive index measurement; refractive index sensor; sensor fabrication; thinned fiber Bragg gratings; wet chemical etching; Bragg gratings; Chemical sensors; Fiber gratings; Optical buffering; Optical fiber sensors; Optical fibers; Optical sensors; Optical waveguides; Refractive index; Sensor phenomena and characterization;
Conference_Titel :
Sensors, 2003. Proceedings of IEEE
Print_ISBN :
0-7803-8133-5
DOI :
10.1109/ICSENS.2003.1278905
