Fabry–Perot interferometers (FPIs) have found a multitude of scientific and industrial
applications ranging from gravitational wave detection, high-resolution spectroscopy, and …

The full realisation of optical fibres in devices such as sensors is reliant on the stability of
their polymer coating under in-service conditions. Depending on the application, resistance …

This paper proposes and demonstrates an ultrasensitive refractive index (RI) sensor based
on harmonic Vernier effect (HEV) and a cascaded Fabry–Perot interferometer (FPI). The …

In order to break through the accuracy limits of traditional processing technology and
research microscopic phenomena, the sensing structures are fabricated by femtosecond (fs) …

A simple, reliable, and quick reactive Fabry-Pérot (FP) structure-based fiber optic pH sensor
is presented. The pH-sensitive hydrogel and single-mode fiber (SMF) are placed inside a …

In this study, a highly sensitive gas pressure sensor based on two Fabry–Perot
interferometers (FPIs) in parallel with the Vernier effect is designed and demonstrated. In the …

A fiber Bragg grating (FBG) sensor integrated with an epoxy diaphragm was developed for
the measurement of pressure and water level. The bending strain of a circular diaphragm …

In this paper, an ultra-sensitive gas pressure and temperature sensor based on vernier effect
is presented. It consists of a single mode fiber (SMF) and hollow cylindrical waveguides …

A biocompatible, reliable and quick responsive fiber-optic sensor based on Mach-Zehnder
interferometer (MZI) is demonstrated for nitrate analytes tracing. The sensor was constructed …

A high-sensitivity fiber-optic gas pressure sensor based on a Fabry-Perot interferometer
filled with epoxy resin adhesive is proposed. The factors of affecting the pressure sensitivity …