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The aim is to summarize the evolution of multimode fibers and their impact on data transmission rates.

April 24, 2026Photonics0 citationsOpen Access

Recent Progress in Multimode Fibers

Key Points

The aim is to summarize the evolution of multimode fibers and their impact on data transmission rates.
Conducted a review of multimode fiber technology and designs.
Analyzed fiber parameters affecting bandwidth performance.
Discussed trends in data rate demands for transmission systems.
Identified key fiber designs like high-bandwidth 50 μm and large-core multimode fibers.
Noted ongoing advancements to enhance bandwidth capabilities in data centers.
Showed trends indicating increased demand for higher data rates in MMF systems.

Abstract

Multimode fibers (MMFs) have been a key component in short-reach transmission systems for over 50 years and remain the predominant transmission medium for Vertical Cavity Surface-Emitting Laser (VCSEL)-based short links in data centers. To meet the growing demand for higher data rates, MMFs have continuously evolved to enhance bandwidth performance. This paper provides an overview of the fundamental properties of MMFs, with an emphasis on fiber parameters that influence bandwidth capabilities. We discuss trends in increasing data rates for MMF transmission systems in data centers and review recent progress in MMF technology aimed at boosting bandwidth. In particular, we highlight innovative fiber designs, including high-bandwidth 50 μm MMFs, large-core MMFs, long-wavelength MMFs, universal fibers, MMF bundles, and multicore fibers.

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