Sensitive Mach–Zehnder interferometric sensor based on a grapefruit microstructured fiber by lateral offset splicing | Zendy

Yu Wang | Zendy; Yan Zhou | Zendy; Zhengyong Liu | Zendy; Daru Chen | Zendy; Chao Lü | Zendy; HwaYaw Tam | Zendy

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Sensitive Mach–Zehnder interferometric sensor based on a grapefruit microstructured fiber by lateral offset splicing

Author(s) -

Yu Wang,

Yan Zhou,

Zhengyong Liu,

Daru Chen,

Chao Lü,

HwaYaw Tam

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.402584

Subject(s) - interferometry , materials science , optics , fusion splicing , mach–zehnder interferometer , fiber optic sensor , optical fiber , offset (computer science) , single mode optical fiber , sensitivity (control systems) , optoelectronics , electronic engineering , physics , computer science , engineering , programming language

A novel inline Mach-Zehnder interferometric (MZI) sensor based on a homemade grapefruit microstructured fiber (GMF) was proposed and experimentally demonstrated. The sensing unit consists of a short segment of a GMF sandwiched between two single mode fibers using lateral offset splicing. The fabrication of the GMF and the GMF-based MZI sensor was introduced. Mode analysis of the GMF and theoretical simulation of the proposed MZI sensor were investigated and matched well with experimental results. The sensing performance of the MZI sensor for temperature and strain was tested. The strain and temperature sensitivity are 1.97pm/μɛ and 37pm/°C, respectively. The compact size, low cost and high sensitivity makes the MZI sensor a good candidate for sensing application.

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