Long period fiber grating sensor in hollow eccentric optical fiber

Xing Zhong; Guopei Mao; Tingting Yuan; Chunying Guan; Li-Bo Yuan

doi:10.1117/12.2071871

11 November 2014 Long period fiber grating sensor in hollow eccentric optical fiber

Xing Zhong, Guopei Mao, Tingting Yuan, Chunying Guan, Li-Bo Yuan

Proceedings Volume 9274, Advanced Sensor Systems and Applications VI; 92741H (2014) https://doi.org/10.1117/12.2071871
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

The bending characteristics of the long period fiber grating (LPFG) in hollow eccentric optical fiber (HEOF) were investigated experimentally. The results indicate that the HEOF-LPFG is insensitive to the bending and the biggest sensitivity only is 1.3nm/m^-1 in the range of 0~5m^-1. More than that, the dependences of the resonant peak on the temperature and the axial strain were also studied, obtaining the response of 56.7 pm/°С and 0.3 pm/με, respectively. Obviously, the HEOF-LPFG is more sensitive to the temperature and immune to the curvature and the strain. The HEOF-LPFG can be employed to measure the single parameter and simplify the measurement equipment in the practical application.

Citation Download Citation

Xing Zhong, Guopei Mao, Tingting Yuan, Chunying Guan, and Li-Bo Yuan "Long period fiber grating sensor in hollow eccentric optical fiber", Proc. SPIE 9274, Advanced Sensor Systems and Applications VI, 92741H (11 November 2014); https://doi.org/10.1117/12.2071871

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