With the increasing of water pollution problems, detection of heavy metal ion concentration
in water environment becomes significant. Optical fiber sensor, with its particular advantages …

This paper reviews a wide variety of fiber-optic microstructure (FOM) sensors, such as fiber
Bragg grating (FBG) sensors, long-period fiber grating (LPFG) sensors, Fabry-Perot …

A novel optic fiber Fabry-Perot interferometer (FPI) based on graphene quantum dots
(GQDs) and Polyvinyl Alcohol (PVA) is first proposed for relative humidity (RH) sensing and …

A new fiber optic reflective probe is designed for simultaneous detection of salinity,
temperature, and pressure in seawater. As far as we know, it is the first time that these three …

A dual-parameter sensor based on a photonic crystal fiber (PCF) concatenated with a fiber
Bragg grating (FBG) is proposed and experimentally demonstrated for simultaneous …

An integrated fiber-optic sensor with cross-sensitivity elimination effect is proposed and
experimented for simultaneous measurements of curvature and temperature. The sensor …

A novel approach for multimode fiber (MMF) curvature sensing based on the texture feature
of the specklegram from the fiber facet is proposed, developed and demonstrated. Different …

The measurement of the concentration of different heavy-metal ions present in the water
environments is becoming increasingly essential as water-pollution concerns worsen. The …

We investigated and prepared a chirped long-period grating for high sensitivity bending
measurement. The novel fiber structure is composed of the multimode fiber (MMF) with fixed …

A transmission fiber-optic surface plasmon resonance (SPR) sensor based on three-core
optical fiber (TCF) coated with mercaptoundecanoic acid (MUA)/nonionic polyacrylamide …