Dynamical analysis of evanescent field loss based fiber laser sensing

Lei Jing; Jianquan Yao; Ying Lu

doi:10.1117/12.868621

9 November 2010 Dynamical analysis of evanescent field loss based fiber laser sensing

Lei Jing, Jianquan Yao, Ying Lu

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 785306 (2010) https://doi.org/10.1117/12.868621
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Optical fiber sensors (OFS) play an important role in modern intellectualized sensing system. A novel optical fiber sensor based on single mode fiber laser is proposed in this paper. The basic elements of the novel fiber laser sensor (FLS) is based in the fact that the output power of fiber laser is influenced by the loss which caused by the absorption loss of analyte in evanescent field of the fiber. The action of the fiber laser sensor is theoretical investigated using two-level system rate equations. The function which contacted the output power of the fiber laser and the absorption loss of analyte is build upon the complex refraction index of the analyte and the loss of the resonant cavity of the fiber laser though evanescent field. The relative sensitivity of the fiber laser sensor is given finally.

Citation Download Citation

Lei Jing, Jianquan Yao, and Ying Lu "Dynamical analysis of evanescent field loss based fiber laser sensing", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 785306 (9 November 2010); https://doi.org/10.1117/12.868621

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