FBG moisture sensor system using SOA-based fiber laser with temperature compensation

Author

Han, Liyin ; Wang, Lutang ; Fang, Nian ; Cui, Huishan ; Huang, Zhaoming

Author_Institution

Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China

fYear

2011

fDate

13-16 Nov. 2011

Firstpage

1

Lastpage

7

Abstract

We present a novel FBG moisture sensor system using a SOA-based fiber laser with two FBG sensors as resonator mirrors. Two FBG sensors have same temperature coefficient and one of FBGs is coated by polyamide resin film as moisture sensing material. This system is insensitive to temperature changes and the output power of the system is only dependent on the moisture level to be monitored. The operation principle of the system is introduced and the initial experimental results are demonstrated.

Keywords

compensation; fibre lasers; fibre optic sensors; measurement by laser beam; mirrors; moisture measurement; optical resonators; resins; semiconductor optical amplifiers; FBG moisture sensor; SOA based fiber laser; polyamide resin film; resonator mirror; temperature coefficient; temperature compensation; Abstracts; Moisture; Optical sensors; Programmable logic arrays; Q factor; Semiconductor optical amplifiers; Fiber Bragg gratings; Fiber optic sensors; Fiber optics; Moisture Sensor; Semiconductor Optical Amplifier (SOA);

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

10.1117/12.904364

Filename

6210908