Degenerate mode-group division multiplexing

J Carpenter, BC Thomsen… - Journal of Lightwave …, 2012 - ieeexplore.ieee.org
Degenerate Mode-Group Division Multiplexing Page 1 Copyright (c) 2011 IEEE. Personal
use is permitted. For any other purposes, permission must be obtained from the IEEE by …

DSP complexity of mode-division multiplexed receivers

B Inan, B Spinnler, F Ferreira, D van den Borne… - Optics express, 2012 - opg.optica.org
The complexities of common equalizer schemes are analytically analyzed in this paper in
terms of complex multiplications per bit. Based on this approach we compare the complexity …

Design of few-mode fibers with M-modes and low differential mode delay

FM Ferreira, D Fonseca… - Journal of Lightwave …, 2013 - ieeexplore.ieee.org
In this paper, we investigate the design of few-mode fibers (FMFs) guiding 2 to 12 linearly
polarized (LP) modes with low differential mode delay (DMD) over the C-band, suitable for …

5× 5 25 gbit/s wdm-mdm

Y Fazea, A Amphawan - Journal of Optical Communications, 2015 - degruyter.com
Wavelength-division multiplexed-passive optical network (WDM-PON) is a revolutionary
high-capacity and scalable broadband access network. This paper capitalizes on Laguerre …

Design of few-mode fibers with arbitrary and flattened differential mode delay

F Ferreira, D Fonseca, H Silva - IEEE Photonics Technology …, 2013 - ieeexplore.ieee.org
This letter proposes the use of a refractive index profile with a graded core and a cladding
trench for the design of few-mode fibers, aiming an arbitrary differential mode delay (DMD) …

Design of 7× 2.5 Gbps decision feedback equalization scheme for mode division multiplexing over free-space optics under diverse atmospheric turbulence

A Almogahed, A Amphawan… - Optical …, 2022 - spiedigitallibrary.org
Free-space optics (FSO) systems use the atmosphere as a medium to propagate data in the
form of an optical signal. Using mode division multiplexing (MDM) over FSO systems …

Semi-analytical model for linear modal coupling in few-mode fiber transmission

F Ferreira, P Monteiro, H Silva - 2012 14th International …, 2012 - ieeexplore.ieee.org
This paper proposes a method for the semi-analytical solution of the coupled linear
differential equations that describe the linear modal coupling arising in few mode fibers …

Space‐division multiplexing and MIMO processing

R Ryf, NK Fontaine - Enabling Technologies for High Spectral …, 2016 - Wiley Online Library
This chapter first describes various optical fibers that can support space‐division
multiplexing (SDM) transmission. It then reviews SDM transmission techniques that can be …

Performance analysis of low-complexity adaptive frequency-domain equalization and MIMO signal processing for compensation of differential mode group delay in …

Y Weng, X He, Z Pan - Next-Generation Optical …, 2016 - spiedigitallibrary.org
Mode-division multiplexing (MDM) transmission systems utilizing few-mode fibers (FMF)
have been intensively explored to sustain continuous traffic growth. The key challenges of …

Modified downhill simplex method for fast adaption of optical filters in optical communication systems

L Baudzus, PM Krummrich - Electronics Letters, 2019 - Wiley Online Library
The authors propose a control method based on the downhill simplex (Nelder–Mead)
method for adaptive optical filters used for channel equalisation in optical communication …