Optical sensors are widely used for refractive index measurement in chemical, biomedical,
and food processing industries. Due to specific field distribution of the resonances, optical …

Thanks to the peculiarities of optical fiber and its ability to be combined with
nanotechnology, precise and accurate measurements of the changes in optical properties …

Fiber optic label-free biosensors are currently experiencing wide diffusion, as they combine
the performance of optical measurements with the advantages of optical fiber. This paper …

Fiber optic devices are being increasingly employed in the fields of chemical and
environmental sensing due to their important features, such as high accuracy, small size …

A new optical biosensor for the detection of organophosphate compounds is reported. The
transducing element is a non-adiabatic tapered fiber operates based on interference of …

We propose and demonstrate an optical fiber vector curvature sensor based on a long-
period fiber grating (LPFG) inscribed in Panda type polarization-maintaining fiber (PMF) …

A novel vector bend sensor based on side-grooved Long period grating (SG-LPG) inscribed
on eccentric core fiber (ECF) was proposed and investigated. The core of the ECF is close to …

We investigate and prepare a novel long-period fiber grating (LPFG) based on γ-shaped
grid for high sensitivity bending measurement. The γ-shaped LPFG is composed of a string …

Optic fiber sensors for refractive index (RI) measurement have brought about widespread
attention in an extensive range owing to their unique properties. In this paper, we …

A dual-channel optical fiber sensing system for refractive index (RI) measurement with ultra-
high sensitivity and large measurement range is proposed and demonstrated by combining …