Dual-optical-response photonic crystal fibre interferometer for multi-parameter sensing

Joel Villatoro; Vladimir P. Minkovich; Joseba Zubia

doi:10.1117/12.2058763

2 June 2014 Dual-optical-response photonic crystal fibre interferometer for multi-parameter sensing

Joel Villatoro, Vladimir P. Minkovich, Joseba Zubia

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91577J (2014) https://doi.org/10.1117/12.2058763
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

An all-fiber mode interferometer consisting of a short segment of photonic crystal fiber (PCF) fusion spliced to standard single mode optical fiber and pressed on localized regions is proposed for multi-parameter sensing. In our configuration, the physical parameter being sensed changes the fringe contrast (or visibility) of the interference pattern and also causes a shift to the same. To achieve this dual effect the device is pressed on localized regions over a few millimeters. In this manner we introduce losses and effective refractive index changes to the interference modes, hence visibility and shift to the interference pattern. Our interferometer is suitable for monitoring diverse physical parameters such as weight, force, pressure, load, etc. The advantage is that no temperature or power fluctuations compensation is required.

Citation Download Citation

Joel Villatoro, Vladimir P. Minkovich, and Joseba Zubia "Dual-optical-response photonic crystal fibre interferometer for multi-parameter sensing", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91577J (2 June 2014); https://doi.org/10.1117/12.2058763

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