Power-Referenced and Temperature-Calibrated Optical Fiber Refractometer

Author

Guo, Tuan ; Chen, Chengkun ; Laronche, Albane ; Albert, Jacques

Author_Institution

Carleton Univ., Ottawa

Volume

20

Issue

8

fYear

2008

fDate

4/15/2008 12:00:00 AM

Firstpage

635

Lastpage

637

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);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.919457

Filename

4475232