Simultaneous measurement of refractive index and temperature with micro silica sphere cavity hybrid Fabry Perot optical fiber sensor

O. R. Ranjbar Naeini; H. Latifi; M. I. Zibaii

doi:10.1117/12.2193754

28 September 2015 Simultaneous measurement of refractive index and temperature with micro silica sphere cavity hybrid Fabry Perot optical fiber sensor

O. R. Ranjbar Naeini, H. Latifi, M. I. Zibaii

Author Affiliations +

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963472 (2015) https://doi.org/10.1117/12.2193754
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

In this article, a novel Micro Silica Sphere Cavity Hybrid Fabry Perot optical fiber sensor is reported where refractive index (RI) and temperature can be simultaneously measured. The sensor is based on Micro Silica Sphere that was fabricated using a capillary tube. The micro silica sphere and optical fiber form a Hybrid Fabry Perot cavity. The temperature cross sensitivity of this sensor is small enough to be used for accurate RI measurement. The temperature sensitivity and RI sensitivity are -0.0028 dBm/ºC, -0.0044 dBm/ºC , -24.09 dBm/RIU and -20.6 dBm/RIU respectively, using two selected resonances.

Citation Download Citation

O. R. Ranjbar Naeini, H. Latifi, and M. I. Zibaii "Simultaneous measurement of refractive index and temperature with micro silica sphere cavity hybrid Fabry Perot optical fiber sensor", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963472 (28 September 2015); https://doi.org/10.1117/12.2193754

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