The role of parallelism in the evolution of optical fiber communication systems

W Klaus, PJ Winzer, K Nakajima - Proceedings of the IEEE, 2022 - ieeexplore.ieee.org
In order to overcome the capacity limitations of current lightwave systems based on the
single-mode optical fiber, massively parallel transmission in the spatial domain [space …

[HTML][HTML] Toward sdm-based submarine optical networks: a review of their evolution and upcoming trends

C Papapavlou, K Paximadis, D Uzunidis, I Tomkos - Telecom, 2022 - mdpi.com
Submarine networks have evolved alongside terrestrial ones over the past several decades.
Although there are similarities between these two network categories (eg, the need to cover …

All-fiber spatial and wavelength gain-flattening of few-mode EDFA via mode selective coupler

Y Zeng, C Zhang, S Zhang, Y Fang, X Huang… - Optics & Laser …, 2025 - Elsevier
The mode division multiplexing (MDM) technique together with wavelength division
multiplexing (WDM) shows the great prospect to solve the capacity crunch of current …

A very fast single-step process for optical microfiber long period gratings fabrication

MH Maghsoudian… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Optical microfiber long period gratings (MLPGs) with advantages such as low insertion loss,
polarization independence, high resonance dip, and simple configuration are broadly …

Mode multicasting without parasitic wavelength conversion

X Huang, S Fu, M Xiang, G Zhou, C Zhang, D Lin… - Optics …, 2023 - opg.optica.org
Optical multicasting, which involves delivering an input signal to multiple different channels
simultaneously, is a key function to improve network performance. By exploiting individual …

Dual-pump few-mode fiber optical parametric amplification: analytical model and optimization strategy

X Huang, M Xiang, S Fu, J Li, Y Qin - JOSA B, 2022 - opg.optica.org
The realization of long-haul mode-division multiplexing (MDM) transmission requires a
matched optical amplifier with similar gain profiles among all guided modes. The fiber …

[HTML][HTML] Differential mode-gain equalization via femtosecond laser micromachining-induced refractive index tailoring

C Zhang, S Zhang, Y Zeng, Y Wang, M Xiang… - Light: Advanced …, 2024 - light-am.com
The mode-division multiplexing technique combined with a few-mode erbium-doped fiber
amplifier (FM-EDFA) demonstrates significant potential for solving the capacity limitation of …

Rigorous FM-EDF design with an oversized two-layer erbium ion distribution for C-band DMG mitigation

Y Zeng, Y Fang, Y Qin, O Xu, J Li, S Fu - JOSA B, 2021 - opg.optica.org
We present a rigorous design of few-mode erbium doping fiber (FM-EDF) with an oversized
two-layer erbium ion distribution at the central region with effective differential modal gain …

Performance evaluation of a two-stage few-mode EDFA for high-capacity SDM systems

A Lozada, R Olivares, N Jara, P Morales, BD Feris… - Optics …, 2024 - opg.optica.org
Space division multiplexing (SDM) systems using few-mode fibers (FMF) are essential for
next-generation fiber optic communications. Optical amplifiers with low noise, minimal …

Recent progress on submarine optical amplifiers

C Papapavlou, K Paximadis… - 2022 13th International …, 2022 - ieeexplore.ieee.org
Submarine networks look like a teenager if compared to terrestrial ones. Although this
teenager passed a difficult adolescence, he seems to have a brilliant future. As bandwidth …