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 …

The most important components for application in high-power all-fiber lasers and amplifiers
are, most of all, power combiners, but also mode field adaptors. This paper summarizes …

We present a detailed analysis of the modal properties, dispersive behavior, and nonlinear
mode coupling in graded-index multimode fibers (GIMFs), and lay out a simplified form of a …

We demonstrate a mode-locked all-fiber Tm laser using a single mode-step index multimode-
graded-index multimode-single mode fiber structure as a saturable absorber based on the …

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 …

A hybrid no-core fiber (NCF)–graded index multimode fiber (GIMF) structure is used as a
saturable absorber (SA) for mode-locked laser operation. Such an SA supports various …

A highly sensitive optical fiber Mach–Zehnder interference curvature sensor based on MMF-
GIMMF-MMF, which was made by sandwiching the graded-index multimode fiber (GIMMF) …

We experimentally demonstrate for the first time, to the best of our knowledge, an all-fiber
passively mode-locked laser operation based on the nonlinear multimode interference of …

We demonstrate a robust linearly polarized 365 W, very low amplitude noise, single
frequency master oscillator power amplifier at 1064 nm. Power scaling was done through a …

A procedure for the multiplexing and demultiplexing of modes in optical fibers with digital
holograms is presented. By using a spatial light modulator (SLM) to encode a digital …