Magnetic field sensor based on selectively magnetic fluid infiltrated dual-core photonic crystal fiber

Rahul K. Gangwar; Vanita Bhardwaj; Vinod  K. Singh

doi:10.1117/1.OE.55.2.026111

10 February 2016 Magnetic field sensor based on selectively magnetic fluid infiltrated dual-core photonic crystal fiber

Rahul K. Gangwar, Vanita Bhardwaj, Vinod K. Singh

Author Affiliations +

Optical Engineering, Vol. 55, Issue 2, 026111 (February 2016). https://doi.org/10.1117/1.OE.55.2.026111

Abstract

We reported the modeling result of selectively magnetic fluid infiltrated dual-core photonic crystal fiber based magnetic field sensor. Inside the cross-section of the designed photonic crystal fiber, the two fiber cores filled with magnetic fluid (Fe₃O₄) form two independent waveguides with mode coupling. The mode coupling under different magnetic field strengths is investigated theoretically. The sensitivity of the sensor as a function of the structural parameters of the photonic crystal fiber is calculated. The result shows that the proposed sensing device with 1 cm photonic crystal fiber length has a large sensitivity of 305.8 pm/Oe.

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Rahul K. Gangwar, Vanita Bhardwaj, and Vinod K. Singh "Magnetic field sensor based on selectively magnetic fluid infiltrated dual-core photonic crystal fiber," Optical Engineering 55(2), 026111 (10 February 2016). https://doi.org/10.1117/1.OE.55.2.026111

Published: 10 February 2016

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