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Proceedings Paper

Series-coupled fiber double-ring in Mach–Zehnder interferometer for temperature sensing
Author(s): Yundong Zhang; Yongfeng Wu; Xuenan Zhang; Hui Li; Ping Yuan
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Paper Abstract

We theoretically investigate the properties of the series-coupled fiber double-ring resonator in a Mach–Zehnder interferometer as highly sensitive temperature sensor. By comparison of phase difference between two arms, we acquired suitable phase difference of 0.5π between two arms in a Mach–Zehnder interferometer for sharpest asymmetric line shape around the resonance wavelength. We also analyze the effect of parameters on the sensitivity and the detection limit by measuring the intensity change at a fixed wavelength. For the 30dB signal-to-noise ratio system, the sensitivity and the detection limit can achieve 720.8/°C and 4.16×10−6 °C, respectively. These results indicate that this structure is suitable for highly sensitive, compact and stable sensors.

Paper Details

Date Published: 28 August 2015
PDF: 9 pages
Proc. SPIE 9609, Infrared Sensors, Devices, and Applications V, 96090I (28 August 2015); doi: 10.1117/12.2187175
Show Author Affiliations
Yundong Zhang, Harbin Institute of Technology (China)
Yongfeng Wu, Harbin Institute of Technology (China)
Xuenan Zhang, Harbin Institute of Technology (China)
Hui Li, Harbin Institute of Technology (China)
Ping Yuan, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 9609:
Infrared Sensors, Devices, and Applications V
Paul D. LeVan; Ashok K. Sood; Priyalal Wijewarnasuriya; Arvind I. D'Souza, Editor(s)

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