7 November 2012 Sensing properties of intrinsic Fabry-Perot interferometers in fiber tapers
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842189 (2012); doi: 10.1117/12.975454
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
A sensing configuration of the fiber taper intrinsic Fabry-Perot interferometer (FTIFPI) was presented and developed. Direct inscription method of intrinsic Fabry-Perot interferometers in optical fiber tapers with a femtosecond laser has been fabricated experimentally. Fabry-Perot interferometers are firstly realized in the waist of fiber tapers. The experimental results indicate that the change in wavelength has a good linear relationship with temperature, while the fringe visibility keeps the same approximately. In the range of 0°C~100°C, the interference spectrum sensitivity is 12pm/°C. The fringe visibility decreases linearly with the liquid refractive index increasing, while extremes keep the same approximately.
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Xiaobei Zhang, Jinlong Li, Yang Li, Wenyuan Wang, Fufei Pang, Yunqi Liu, Tingyun Wang, "Sensing properties of intrinsic Fabry-Perot interferometers in fiber tapers", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842189 (7 November 2012); doi: 10.1117/12.975454; https://doi.org/10.1117/12.975454
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KEYWORDS
Sensors

Fabry–Perot interferometry

Refractive index

Liquids

Femtosecond phenomena

Visibility

Fiber optics sensors

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