Fiber optic-based liquid-level sensors (FOLLSs) can work in harsh environments with
inherent advantageous features that only optical fiber offers, such as intrinsic safety …

Fiber laser sensors have been present for almost four decades as versatile sensing devices
with a simple demodulation process, high sensitivity, and competitive resolution. This work …

A challenge for optical fiber biosensor is to achieve ultrahigh sensitivity with narrow full width
at half maximum (FWHM) of the spectrum. To address this challenge, an ultrahigh-sensitivity …

We propose and demonstrate a high-performance wavelength-switchable erbium-doped
fiber laser (EDFL), enabled by a figure-8 compound-ring-cavity (F8-CRC) filter for single …

This paper presents a fiber optic, liquid level sensor system based on a pair of fiber Bragg
gratings (FBGs), embedded in a circular silicone (PDMS—polydimethylsiloxane) rubber …

In this paper, a multi-wavelength fiber ring laser (MWFRL) based on a hybrid gain medium
and Sagnac interferometer (SI) used for temperature measurement has been proposed and …

Based on few-mode fiber (FMF) and photonic crystal fiber (PCF), a new temperature sensor
with a FMF-PCF-FMF hybrid construction has been developed. Furthermore, the sensor has …

A novel half-bonded chirped fiber Bragg grating on a natural rubber diaphragm has been
proposed to enhance the sensitivity and to compensate the temperature effects of a …

A fiber-optic refractive index (RI) sensor consisting of a fiber Bragg grating (FBG) spliced in
downstream of a spherical-shape structure in a single-mode fiber (SMF) is proposed and …

An optical fiber ring laser (FRL) cavity-based sensitive temperature and salinity sensor is
proposed and experimentally demonstrated. The sensor consists of a Sagnac loop with a …