DocumentCode
1400420
Title
High Sensitive Refractive Index Sensor Based on Cladding Mode Recoupled Chirped FBG
Author
Sun, An ; Wu, Zhishen
Author_Institution
Int. Inst. for Urban Syst. Eng., Southeast Univ., Nanjing, China
Volume
24
Issue
5
fYear
2012
fDate
3/1/2012 12:00:00 AM
Firstpage
413
Lastpage
415
Abstract
A simple but highly sensitive refractometer based on chirped fiber Bragg grating (CFBG) is proposed and investigated experimentally. Intensive reflected cladding modes can be excited within a large wavelength range through a multimode fiber CFBG structure. Experimental results show that the intensity of reflected cladding modes in CFBG is modulated by surrounding refractive index (RI) changes, which provide a high sensitive and cost-effective solution for RI measurement.
Keywords
Bragg gratings; chirp modulation; fibre optic sensors; optical fibre cladding; refractive index measurement; refractometers; RI measurement; chirped FBG; chirped fiber Bragg grating; cladding mode; high sensitive refractive index sensor; reflected cladding modes; refractometer; Fiber gratings; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; Chirped fiber Bragg grating; cladding mode; optical fiber sensors; refractive index measurement;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/LPT.2011.2179931
Filename
6105523
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