Abstract
In this paper, we theoretically investigate the influences of pressure and temperature on the birefringence property of side-hole fibers with different shapes of holes using the finite element analysis method. A physical mechanism of the birefringence of the side-hole fiber is discussed with the presence of different external pressures and temperatures. The strain field distribution and birefringence values of circular-core, rectangular-core, and triangular-core side-hole fibers are presented. Our analysis shows the triangular-core side-hole fiber has low temperature sensitivity which weakens the cross sensitivity of temperature and strain. Additionally, an optimized structure design of the side-hole fiber is presented which can be used for the sensing application.
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Acknowledgment
This research is supported by the Fundamental Research Funds for the Central Universities [DUT 15RC(3) 112].
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Zhou, X., Gong, Z. ANSYS-based birefringence property analysis of side-hole fiber induced by pressure and temperature. Photonic Sens 8, 13–21 (2018). https://doi.org/10.1007/s13320-017-0434-0
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DOI: https://doi.org/10.1007/s13320-017-0434-0