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Photonic bandgap fibers—a roadway to all-fiber refractometer systems for monitoring of liquid analytes

H. Qu, J. Li,  and M. Skorobogatiy     Genie Physique, Ecole Polytechnique de Montreal, Montreal, QC, Canada

Abstract

We demonstrate experimentally that an all-fiber refractometer system could be developed using a combination of the hollow and solid-core photonic bandgap Bragg fibers. Particularly, the proposed refractometer system consists of two parts: a liquid-core Bragg fiber for holding and probing test analytes and a solid-core Bragg fiber-bundle spectrometer for interrogating the transmission spectrum. This refractometer system operates on a resonant-sensing principle in which variations in the refractive index of a test analyte could ...

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