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Updated: Sep 30, 2025

Characterization of Anisotropic Leaky Mode Modulators for Holovideo
Published on: March 19, 2016
2D least-squares mode decomposition for mode division multiplexing
Abstract:
We investigate a fast and accurate technique for mode decomposition in multimode optical fibers. Initial decomposition task of near-field beam patterns is reformulated in terms of a system of linear equations, requires neither machine learning nor iterative routines. We apply the method to step and graded-index fibers and compare the decomposition performance. We determine corresponding application boundaries, propose an efficient algorithm for phase retrieval and carry out a specific preselective procedure that increases the number of decomposable modes and makes it possible to handle up to fifteen modes in presence of realistic noise levels.
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