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 …

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 …

Purpose The purpose of this study aims to simulate the long-period fiber grating sensor
pulse peak position against the transmission range. The long-period fiber grating sensor …

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 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 …

A novel optical fiber grating vector bending sensor head is proposed. The asymmetric
characteristics are embedded in the sensor head by tilting the grating planes at increasing …

We UV inscribe and characterize a long-period fiber grating with a period of 25 μm. A series
of polarization-dependent dual-peak pairs can be seen in the transmission spectrum, even …

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 …

As an important member of the optical fiber sensor family, long period fiber gratings (LPFG)
have attracted increased attention due to their outstanding characteristics. The LPFG is a …