Adiabatic tapered optical fiber - Fabry-Perot structure as a refractive index sensor

In this article, an Adiabatic Tapered Optical Fiber -Fabry Perot (ATOF-FP) Sensor is introduced as a simple refractive index sensor. This FP Cavity relies upon reflection from two cleave ends of ATOF sensor's arms. Its spectrum was investigated with Distributed Feedback (DFB) tunable laser and...

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Bibliographic Details
Published in:2017 25th Optical Fiber Sensors Conference (OFS) pp. 1 - 4
Main Authors: Ranjbar-Naeini, O. R., Chenari, Z., Zarafshani, P., Jafari, F., Latifi, H.
Format: Conference Proceeding
Language:English
Published: IEEE 01-04-2017
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Summary:In this article, an Adiabatic Tapered Optical Fiber -Fabry Perot (ATOF-FP) Sensor is introduced as a simple refractive index sensor. This FP Cavity relies upon reflection from two cleave ends of ATOF sensor's arms. Its spectrum was investigated with Distributed Feedback (DFB) tunable laser and photo detector. With analyzing the change in Optical Transmission Power (OTP) versus refractive index changes, the sensitivity of ATOF was -66.21 dB/RIU. In addition, the visibility of FP was studied. Its RI sensitivity was -0.975 1/RIU. The sensor resolution was 2.3 × 10 -5 RIU with consideration of minimum detectable signal of acquisition system.
DOI:10.1117/12.2265807