Title :
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
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;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
