
Number of Journals | 34 |
Number of Issues | 1,306 |
Number of Articles | 9,427 |
Article View | 9,188,651 |
PDF Download | 5,620,940 |
Simulation and Fabrication of Tapered Fiber Optics Hydrogen Sensor | ||
الکترومغناطیس کاربردی | ||
Article 3, Volume 6, Issue 1 - Serial Number 16, September 2018, Pages 15-21 PDF (1.51 M) | ||
Document Type: Original Article | ||
Authors | ||
Ali Riahi1; Mahdi Heydari-Dayeni2; mohammad vahedi* 3; Javad Khalilzadeh4; yadollah shahamat4 | ||
1Imam Hossein University | ||
2School of Physics, Iran University of Science and Technology | ||
3Iran University of Science and Technology | ||
4ihu | ||
Receive Date: 30 July 2018, Revise Date: 03 February 2019, Accept Date: 08 February 2019 | ||
Abstract | ||
In this paper, we report simulation and fabrication of a gas sensor based on tapered fiber by measuring the output power in the presence of different hydrogen concentrations. The fibers were tapered to 15.5 μm and 26.6 μm by using oxy-butane torch and the output spectrum is obtained using a 1550nm laser source and an optical spectrum analyzer (OSA) and the sensitivities of the tapered fiber sensors were determined. It is shown that by increasing the percentage of the hydrogen in the surrounding environment, the output power is changed by 7% and 2.3% in the presence of 4% hydrogen for tapered fibers of diameter 15.5μm and 26.6 μm respectively. The response time of the aforementioned sensors were 13 and 17.6 seconds respectively. In addition, the repeatability tests of the fabricated sensors demonstrates acceptable results. Simulation of the tapered fiber sensors demonstrates good agreement with experimental results. The obtained sensitivity makes hydrogen detection below 4% easy and accurate. | ||
Keywords | ||
Tapered optical fiber; Hydrogen sensor; Palladium; Evanescent field | ||
References | ||
[1] M. Pospíšilová, G. Kuncová, J. Trögl "Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors", Sensors, 2015, 15, 25208-25259. [2] K. Mullaney, "The fabrication of micro-tapered optical fibres for sensing application", PhD Thesis, Centre for Engineering Photonics, School of Aerospace, Transport and Manufacturing, Cranfield University, 2016. | ||
Statistics Article View: 1,178 PDF Download: 467 |