In recent years, optical fiber sensors based on multimode interference (MMI) have attracted
increasing interest and developed into various sensors used in many practical applications …

A review for optical fiber bending sensors is presented. The article mainly focuses on the
measurement methods of the structure bending. Firstly, the different optical fiber bending …

We demonstrate refractive index sensors based on single mode tapered fiber and its
application as a biosensor. We utilize this tapered fiber optic biosensor, operating at 1550 …

An in-fiber Mach–Zehnder Interferometer (MZI), based on hollow core fiber (HCF), for
measuring curvature is fabricated and experimentally demonstrated. The sensing part was …

A simple, compact, and highly sensitive optical fiber directional bend sensor is presented.
This device consists of a lateral-offset splicing joint and an up-taper formed through …

The design and usage of the addressed combined fiber-optic sensors (ACFOSs) and the
multisensory control systems of the greenhouse gas concentration on their basis are …

Slope instabilities are a common occurrence in hilly areas, mine, and dam region, which
bring a grave threat to the safety of transportation business and human life. The effective …

We demonstrated femtosecond laser inscription of fiber Bragg gratings (FBGs) in a twin-core
few-mode fiber (TC-FMF) for directional bend sensing. An FBG was selectively inscribed in …

Optical fiber curvature sensors have been considered as a promising option for human
motion detection due to its good toughness, bending flexibility and anti-electromagnetic …

Simultaneously increasing the sensitivity and dynamic range of an optical fiber sensor is
desired and yet challenging. In this article, we demonstrate an optical fiber curvature sensor …