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

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

doi:10.1117/12.904364

29 November 2011 FBG moisture sensor system using SOA-based fiber laser with temperature compensation

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

Proceedings Volume 8311, Optical Sensors and Biophotonics III; 831129 (2011) https://doi.org/10.1117/12.904364
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, 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.

Citation Download Citation

Liyin Han, Lutang Wang, Nian Fang, Huishan Cui, and Zhaoming Huang "FBG moisture sensor system using SOA-based fiber laser with temperature compensation", Proc. SPIE 8311, Optical Sensors and Biophotonics III, 831129 (29 November 2011); https://doi.org/10.1117/12.904364

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