Polymer optical fiber (POF) level sensors have a lot of potential in liquid level sensing
because of their inherent safety, chemical corrosion resistance, anti-electromagnetic …

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 …

Real-time acquisition of human pulse signals in daily life is clinically important for
cardiovascular disease monitoring and diagnosis. Here, we propose a smart photonic …

In this paper, we propose a new technique to fabricate long period gratings (LPGs) by
mechanically applying a force to an optical fiber enclosed in a low-cost periodic 3-D printed …

Concrete is the most commonly used construction material nowadays. With emerging cutting-
edge technologies such as nanomaterials (graphene, carbon nanotubes, etc.), advanced …

Here, we report an optical fiber sensor capable of performing strain-insensitive simultaneous
measurements of torsion and temperature using a long-period fiber grating (LPFG) inscribed …

The investigation of the bandwidth in multimode graded-index microstructured polymer
optical fiber (GI mPOF) with a solid core is proposed using a modal diffusion approach. For a …

Human physiological signal monitoring is a key factor in diagnosing health conditions, such
as monitoring heart rate and respiration. To meet the increasing monitoring requirements …

Ultrasensitive detection of heavy metal ion concentrations in drinking water is highly relevant
for protecting human health and environmental monitoring. In this study, we propose and …

Tiny and soft breath sensors offer unique capabilities in a continuous and long-term
recording of vital physiological parameters for human health monitoring. Here, we propose …