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