Multimode fibers are gaining a resurgence of interest in both fundamental and applied
research in recent years. Thanks to the ability to see the weights and relative phase of the …

This article reviews the characteristics and properties of various modes in tilted fiber Bragg
gratings (TFBGs). It explores the fundamental theory and optical characteristics of radiation …

A machine learning assisted modal power analyzing scheme designed for optical modes in
integrated multi-mode waveguides is proposed and studied in this work. Convolutional …

We show that the mode strengths of a guided field in an arbitrary asymmetric channel
waveguide can be uniquely determined from self-referencing interferometric measurements …

A detailed systematic investigation of the accuracy of digital modal decomposition process
that uses stochastic parallel gradient descent (SPGD) algorithm is presented in this paper …

Since few-mode fibers (FMFs) have great potential as the new transmission media for optical
communications, the ability to distinguish different fiber modes is essential. Most of the …

A vortex optical fiber for use in an illumination subsystem of an optical imaging system (eg, a
stimulated emission depletion (STED) microscopy system) includes an elongated optically …

Field distributions and power spectra of radiation modes in both two-layer and three-layer
cross-sectional fibers are investigated. By mapping packets of radiation modes to discrete …

Imaging at the nanoscale and/or at remote locations holds great promise for studies in fields
as disparate as the life sciences and materials sciences. One such microscopy technique …

As data consumption continues to grow, the backbone of the internet, comprising single
mode fiber (SMF)-based infrastructure, is fundamentally limited by nonlinear optical effects …