Abstract: We demonstrate a surrounding refractive index (SRI) sensor based on helical long-period fiber grating inscribed in Y-shaped triangular core fiber. The maximum SRI sensitivity is −9026 nm/RIU ...
Abstract: In this letter, a refractive index (RI) sensor was developed and experimentally validated using an interferometric design that integrates single-mode fiber (SMF), no-core multimode fiber, ...
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