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Proceedings Paper

Adiabatic tapered optical fiber Fabry-Perot structure as a refractive index sensor
Author(s): O. R. Ranjbar-Naeini; Z. Chenari; P. Zarafshani; F. Jafari; H. Latifi
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Paper Abstract

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.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103234N (23 April 2017); doi: 10.1117/12.2265807
Show Author Affiliations
O. R. Ranjbar-Naeini, Shahid Beheshti Univ. (Iran, Islamic Republic of)
Z. Chenari, Shahid Beheshti Univ. (Iran, Islamic Republic of)
P. Zarafshani, Shahid Beheshti Univ. (Iran, Islamic Republic of)
F. Jafari, Shahid Beheshti Univ. (Iran, Islamic Republic of)
H. Latifi, Shahid Beheshti Univ. (Iran, Islamic Republic of)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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