Abstract
A PDMS-assisted Mach-Zehnder interferometric (MZI) fiber-optical sensor based on hollow-core fibers (HCF) is proposed and experimentally demonstrated for the simultaneous detection of strain and temperature. The transmission spectral evolution in response to the applied strain and temperature sensor are investigated. Experimental results suggest that our proposed sensor exhibits strain and temperature sensitivities up to −40.95 dB/N and 2.5 nm/°C for the sensing ranges of 0.01 N to 0.08 N and 35 °C to 42 °C, respectively. Moreover, crosstalk analyses were performed to discriminate the strain and temperature measurement. The proposed sensor possesses desirable advantages such as high sensitivity, easy-fabrication, and low-crosstalk, which paves new way toward developing photonic devices for strain/temperature dual-parameter sensing and related applications.
Published Version
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