A singlemode-multimode-singlemode (SMS) fiber structure consists of a short section of
multimode fiber fusion-spliced between two SMS fibers. The mechanism underpinning the …

Displacement measurements are of significant importance in a variety of critical scientific
and engineering fields, such as gravitational wave detection, geophysical research, and …

In this article, a hetero-core optical fiber sensor structure is developed for the diagnosis of L-
Cysteine content in human urine. The hetero-core structure is created by sequentially …

The proposed sensing device relies on the self-imaging effect that occurs in a pure silica
multimode fiber (coreless MMF) section of a single-mode–multimode–single-mode (SMS) …

In recent decades, conventional electric instruments have already been widely used to
monitor the performance of geotechnical structures. However, there are several inherent …

Automatic monitoring system is one of the main means to ensure the safety of underground
engineering construction. This paper summarizes the current international research and …

Respiration rate (RR) is an important information related to human physiological health. A
wearable optical fiber sensor for respiration monitoring based on a bend singlemode …

A new optical fiber curvature sensor dominated by three-core single mode fiber (TCSMF) is
proposed and demonstrated. The sensing structure is formed by cascading multimode fiber …

A dual-channel single-mode-multi-mode-single-mode (SMS) fiber optic sensor
encapsulated by polydimethylsiloxane (PDMS) was proposed for the first time, for the …

In this paper, a simple balloon-like fiber sensing system based on a Mach-Zehnder modal
interferometer by bending single-mode fiber (SMF) into a balloon-like structure is proposed …