Abstract
A subwavelength core microstructured optical fiber (MOF) temperature sensor based on infiltration with chloroform is proposed. Fiber core is surrounded by three large holes which can facilitate the infiltration of the chloroform. The refractive index of chloroform is sensitive to the temperature of the environment. Mode loss of the guided mode caused by index change of chloroform is obtained by solving Maxwell’s equation with finite element method (FEM), and is used as a criterion for sensitivity estimation. The relationship between the sensitivity of temperature sensor and the core diameter of MOF is investigated. Our simulation results show that the subwavelength core MOF is very promising for developing a linear response to temperature sensor of significantly reduced core size.
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