Microfiber-based inline Mach-Zehnder interferometer for dual-parameter measurement


An approach to realizing simultaneous measurement of refractive index (RI) and temperature based on a microfiber-based dual inline Mach-Zehnder interferometer (MZI) is proposed and demonstrated. Due to different interference mechanisms, as one interference between the core mode and the lower order cladding mode in the sensing single-mode fiber and the other interference between the fundamental mode and the high-order mode in the multimode microfiber, the former interferometer achieves RI sensitivity of -23.67 nm/RIU and temperature sensitivity of 81.2 pm/oC, whereas those of the latter are 3820.23 nm/RIU, and -465.7 pm/oC, respectively. The large sensitivity differences can provide a more accurate demodulation of RI and temperature. The sensor is featured with multiparameters measurement, compact structure, high sensitivity, low cost, and easy fabrication.

Publication DOI: https://doi.org/10.1109/JPHOT.2015.2395133
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: Creative Commons BY Funding: National Natural Science Foundation of China under Grant 61275004 and Grant 61290315 and in part by the European Commission's Marie Curie International Incoming Fellowship under Grant 328263.
Uncontrolled Keywords: refractive index,Sensors,subwavelength structure,temperature,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics
Publication ISSN: 1943-0655
Last Modified: 19 Jan 2024 08:05
Date Deposited: 23 Apr 2015 08:15
Full Text Link: http://ieeexplo ... rnumber=7042725
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-02-16
Authors: Luo, Haipeng
Sun, Qizhen
Xu, Zhilin
Jia, Weihua
Liu, Deming
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)



Version: Published Version

License: Creative Commons Attribution

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