Simultaneous strain and temperature measure based on a single suspended core photonic crystal fiber

S. Rota-Rodrigo; M. López-Amo; J. Kobelke; K. Schuster; J. L. Santos; O. Frazão

doi:10.1117/12.2059019

2 June 2014 Simultaneous strain and temperature measure based on a single suspended core photonic crystal fiber

S. Rota-Rodrigo, M. López-Amo, J. Kobelke, K. Schuster, J. L. Santos, O. Frazão

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915721 (2014) https://doi.org/10.1117/12.2059019
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

In this work a simultaneous strain and temperature sensor based on a suspended core fiber is proposed. The sensor comprises a 3mm suspended core PCF between SMFs and is based on the combination of two multimodal interferences with different frequency fringe patterns. The interference of the both signal has different sensitivity responses to strain and temperature. Thought a low-pass frequency filtering of the detected spectrum, the wavelength shift of the two interferences can be measured allowing the discrimination of strain and temperature simultaneously. The resolutions of this sensor are 0.45 ºC and 4.02 με.

Citation Download Citation

S. Rota-Rodrigo, M. López-Amo, J. Kobelke, K. Schuster, J. L. Santos, and O. Frazão "Simultaneous strain and temperature measure based on a single suspended core photonic crystal fiber ", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915721 (2 June 2014); https://doi.org/10.1117/12.2059019

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