Title :
Power-Referenced and Temperature-Calibrated Optical Fiber Refractometer
Author :
Guo, Tuan ; Chen, Chengkun ; Laronche, Albane ; Albert, Jacques
Author_Institution :
Carleton Univ., Ottawa
fDate :
4/15/2008 12:00:00 AM
Abstract :
A novel technique for simultaneous measurement of refractive index and temperature based on power level detection of a weakly tilted fiber Bragg grating (TFBG) is proposed and experimentally demonstrated. Surrounding refractive index (RI) and temperature can be unambiguously determined by the TFBG transmitted and reflected power, respectively, avoiding complex wavelength interrogation. An accuracy approaching 1 x 10-4 in terms of the RI as well as temperature self-calibration is shown for this robust and cost-effective refractometer.
Keywords :
Bragg gratings; calibration; optical fibres; refractive index measurement; refractometers; power level detection; power-referenced optical fiber refractometer; refractive index measurement; temperature measurement; temperature self-calibration; temperature-calibrated optical fiber refractometer; weakly tilted fiber Bragg grating; Bragg gratings; Fiber gratings; Optical coupling; Optical fibers; Optical reflection; Optical refraction; Power measurement; Refractive index; Temperature measurement; Temperature sensors; Power referenced; refractometer; temperature calibration; tilted fiber Bragg grating (TFBG);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.919457
