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 …

We review fiber-based multimode interference (MMI) devices with a particular focus on
optical fiber-based sensing applications. The present review complements a recently …

An optical fiber magnetic field sensor based on the single-mode–multimode–single-mode
(SMS) structure and magnetic fluid (MF) is proposed and demonstrated. By using a piece of …

This paper presents an investigation on a single-mode–multimode–single-mode fiber
structure. A one-way guided-mode propagation analysis for the circular symmetry …

Recent advances in the Medical Internet of Things (MIoT) and big data enable a prospering
platform for pervasive healthcare and facilitate the transformation from hospital-centered to …

A fiber-optic curvature sensor based on the single-mode-multimode-single-mode (SMS)
fiber structure is developed. Several notches in the transmitted spectrum of the SMS fiber …

The unique structural characteristic of no-core fiber (NCF) have extended the sensing
applications based on multimode interference self-imaging, evanescent wave absorption …

Multimode fibers (MMFs) have attracted interest because of their larger mode area and
additional spatial degrees of freedom compared with single-mode fibers. Recently, MMFs …

A detailed investigation of the nonlinear multimodal interference in a short graded-index
multimode optical fiber is presented. The analysis is performed for a specific device …

We demonstrate an all-fiber high-power Yb-doped 1018 nm fiber laser with a Gaussian-
shaped output beam profile based on a mismatched structure, which consists of a pair of …