Refractive index measurement by fat long period grating sensor on a single mode optical fiber

Author

Kheiri, M. ; Zibaii, M.I. ; Sadeghi, Javad ; Latifi, Hojjat

Author_Institution

Laser & Plasma Res. Inst., Shahid Beheshti Univ., Tehran, Iran

fYear

2011

fDate

13-16 Nov. 2011

Firstpage

1

Lastpage

6

Abstract

A simple refractive index sensor based on a fat long period fiber grating (FLPFG) in a single-mode fiber is constructed and demonstrated. The sensor consists of periodical fattening region in a short piece of single-mode fiber. In this method, the fiber fattening is realized by applying a standard fusion splicing procedure on single mode optical fiber. The sensitivity of the sensor is 7.5 × 10^-5 which the sensitivity is enhanced to the other kinds of long period fiber grating (LPFG).

Keywords

diffraction gratings; fibre optic sensors; optical fibre fabrication; refractive index measurement; splicing; FLPFG; fat long period grating sensor; fiber fattening; periodical fattening; refractive index measurement; single mode optical fiber; standard fusion splicing procedure; Biomedical optical imaging; Optical fiber cables; Optical fiber sensors; Optical fibers; Optical refraction; Fat long period fiber grating; optical fiber sensor; refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition, 2011. ACP. Asia

Conference_Location

Shanghai

ISSN

2162-108X

Print_ISBN

978-0-8194-8961-6

Type

conf

DOI

10.1117/12.904470

Filename

6210867