Hexagonal Mesh Architecture for Large-Area Multipoint Fiber Sensor System

Author

Gu, H.W. ; Chang, C. Hwa ; Chen, Yu Christine ; Peng, P.C. ; Kuo, S.T. ; Lu, H.H. ; Li, C.Y. ; Yang, S.S. ; Jhang, J.J.

Author_Institution

Dept. of Electro-Opt. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan

Volume

26

Issue

18

fYear

2014

fDate

Sept.15, 15 2014

Firstpage

1878

Lastpage

1881

Abstract

This letter presents a reliable hexagonal mesh architecture for a large-area multipoint fiber sensor system. While covering a large area, the proposed mesh architecture demarcates a large number of fiber sensing regions. Within each sensing region, a ring subnet is constructed to serve many fiber Bragg grating (FBG). In particular, the proposed sensor system incorporates the fiber laser scheme cooperation with the signal-averaging module to enhance its signal-to-noise ratio (SNR) performance. The self-restored capability of the proposed system is achieved by optical switches, allowing it to protect numerous FBG sensors against fiber break(s). A higher SNR with respect to any FBG sensor setting in our experiment is available due to the signal-averaging module.

Keywords

Bragg gratings; fibre lasers; fibre optic sensors; laser noise; optical switches; FBG sensors; SNR; fiber Bragg grating; fiber laser scheme cooperation; large-area multipoint fiber sensor system; optical switches; reliable hexagonal mesh architecture; ring subnet; self-restored capability; signal-averaging module; signal-to-noise ratio; Bragg gratings; Optical fiber networks; Optical fiber sensors; Optical fibers; Optical switches; Sensor systems; Signal-averaging module; fiber sensor system; mesh architecture;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2336892

Filename

6849956