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Tapered Mach–Zehnder interferometer based on two mechanically induced long-period fiber gratings as refractive index sensor

PhotonicsOptical MaterialsEngineeringOptical PropertiesFiber Optic SensingOptical MetrologyRefractive Index SensorFiber OpticsInstrumentationFiber OpticOptical SensorMach–zehnder InterferometerOptical Sensors