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Fatehi Raviz B, Vahedi M. Comparison of Sensitivity of Tapered Fiber Optic Gas sensors with Different Non-adiabaticity Degrees. ICOP & ICPET _ INPC _ ICOFS 2018; 24 :609-612
URL: http://opsi.ir/article-1-1461-en.html
URL: http://opsi.ir/article-1-1461-en.html
Comparison of Sensitivity of Tapered Fiber Optic Gas sensors with Different Non-adiabaticity Degrees
1- IUST
Abstract: (2839 Views)
In this paper, we compare sensor performance of two tapered fiber optic sensors. We use two fibers with the same taper waist diameter of about 27μm and the lengths of 4mm and 8mm and different tapering angles. Tapered fibers are made by using an oxy-butane torch. The response of two sensors to different N2 gas pressures are measured which demonstrate different sensitivities. The fiber with more non-adiabaticity shows better results. A sensitivity to gas pressure variations equal to 6.83μW/Bar was obtained. Also, the spectrum shift dependence to gas pressure was 0.4nm/Bar for this fiber.
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