volume | PIER Journals

Abstract

A novel hydrostatic pressure sensor based on a few mode fiber (FMF) is proposed. The FMF-based hydrostatic pressure sensor is simply formed by splicing a segment of FMF to two segments of single mode fibers, where the FMF is used as the sensing element. The mode interference between LP₀₁ mode and LP₁₁ mode of the FMF provides an interference spectrum of the FMF-based hydrostatic pressure sensor which is sensitive to the hydrostatic pressure applied on the FMF. We experimentally show that there is a linear relationship between the hydrostatic pressure and the wavelength shift of the interference spectrum of the FMF-based hydrostatic pressure sensor.

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Dr. Daru Chen

Dr. Chuang Wu

Dr. M. L. V. Tse

Dr. Hwa-Yaw Tam