A first-order solution to the transport equation for the total power propagating in each
degenerate mode group of a multimode fiber is used to describe pulse propagation in …

Loss, coupling, and delay differences among the modes of multimode fibers influence their
transmission characteristic in a complicated way. An approximation of the modes by a …

Coupled mode theory is unnecessary for the analysis of pulse propagation in multimode
optic waveguides. Instead, a very simple ray or continuum equation is derived from …

Modal dispersion (MD) in a multimode fiber may be considered as a generalized form of
polarization mode dispersion (PMD) in single mode fibers. Using this analogy, we extend …

The propagating beam method generates solutions for the electric field in a graded-index
optical fiber that emphasize beam characteristics rather than modal properties. Through …

Previously, we proposed a field-coupling model for propagation in graded-index multimode
fiber (MMF), analogous to the principal states model for polarization-mode dispersion (PMD) …

In the strong mode-coupling regime, the model for mode-dependent gains and losses
(collectively referred as MDL) of a multimode fiber is extended to the region with large MDL …

The power penalty due to modal noise has been quantified and experimentally verified for
single-mode fiber systems operating above their cutoff frequency. It is shown how the modal …

A theory with which one can calculate modal distributions within a multimode fiber excited by
a source of arbitrary spatial coherence, but within the mode-continuum limit, is presented …

Mode coupling and power diffusion in multimode optical fibers is considered. In particular,
the mechanisms responsible for the coupling are investigated and their characteristic …