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Two‐dimensional bending vector sensor based on Mach–Zehnder interferometer of two orthogonal lateral‐offsets
Author(s) -
Zhang Jianhao,
Zhang Weigang,
Wang Jiuzhen,
Huang Shang,
Liu Min,
Li Jieliang,
Wang Li
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28937
Subject(s) - mach–zehnder interferometer , interferometry , bending , curvature , fiber optic sensor , optics , microwave , mach number , optical fiber , engineering , physics , telecommunications , structural engineering , mathematics , geometry , aerospace engineering
A simple, compact bending vector sensor based on Mach–Zehnder interferometer (MZI) utilizing two orthogonal lateral‐offsets is proposed. The two‐dimensional bending vector sensing characteristics, including the curvature and four orthogonal directions, could be measured accurately and simultaneously by the MZI using a special data processing method. Besides, the impact of temperature on the MZI can be eliminated through constructing a matrix using the different response of two loss peak to the bending and temperature sensitivities. This research work would be helpful to develop the practicability of fiber bending vector sensors. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:709–713, 2015