Novel FBG sensors based on cladding surface microstructures

Yu-Tang Dai; Minghong Yang; Joseph Muna Karanja; Qiancheng Zhao

doi:10.1117/12.2058106

2 June 2014 Novel FBG sensors based on cladding surface microstructures

Yu-Tang Dai, Minghong Yang, Joseph Muna Karanja, Qiancheng Zhao

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91570J (2014) https://doi.org/10.1117/12.2058106
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

Novel FBG sensors based on cladding microstructures are proposed, which include micro-holes array, single or double spiral and straight groove types. Through depositing different sensitive film, the microstructured FBG sensors can be applied to fiber optic magnetic field sensor, hydrogen sensor and humidity sensor. As a developing example, a spiral type microstructured FBG magnetic field sensor is demonstrated. The testing results show that, the sensitivity of the spiral types probe can be promoted 4-6 times more than that of the non-microstructured standard FBG probe. The double spiral probe is better than the single spiral type.

Citation Download Citation

Yu-Tang Dai, Minghong Yang, Joseph Muna Karanja, and Qiancheng Zhao "Novel FBG sensors based on cladding surface microstructures", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91570J (2 June 2014); https://doi.org/10.1117/12.2058106

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