Title :
Tilted Fiber Bragg Grating Refractometer Using Polarization-Dependent Loss Measurement
Author :
Caucheteur, C. ; Bette, S. ; Chen, C. ; Wuilpart, M. ; Mégret, P. ; Albert, J.
Author_Institution :
Fac. Polytech. de Mons, Electromagn. & Telecommun. Unit, Mons
Abstract :
In this letter, a novel demodulation technique based on the monitoring of the polarization-dependent loss in a 1-nm wavelength range is proposed to measure the surrounding refractive index by means of weakly tilted fiber Bragg gratings. A 110-3 refractive index resolution as well as a temperature-insensitive behaviour are reported.
Keywords :
Bragg gratings; demodulation; optical fibre losses; optical fibre polarisation; optical fibres; refractive index; refractometers; demodulation technique; polarization-dependent loss measurement; refractive index; tilted fiber Bragg grating refractometer; Fiber Bragg gratings; polarization; refractive index; sensor;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2007745
