Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 31,
  • Issue 3,
  • pp. 423-431
  • (2013)

Effect of Mode Coupling on Signal Processing Complexity in Mode-Division Multiplexing

Not Accessible

Your library or personal account may give you access

Abstract

Mode-division multiplexing systems employ multi-input multi-output (MIMO) equalization to compensate for chromatic dispersion (CD), modal dispersion (MD) and modal crosstalk. The computational complexity of MIMO equalization depends on the number of modes and on the group delay (GD) spread arising from CD and MD. Assuming the strong-coupling regime, in which the total system length far exceeds the correlation length of modal fields, we quantify the GD spread arising from MD, showing that it can be reduced significantly by mode coupling. We evaluate the computational complexity of various MIMO single-carrier equalizers, considering separate or combined equalization of CD and MD, in the time or frequency domain. We present numerical examples for the optimally designed graded-index depressed-cladding fibers supporting D=6, 12, 20 or 30 modes in two polarizations. Assuming a 2000-km system length, a 1-km correlation length, and a combined CD+MD frequency-domain equalizer, the complexity (in complex multiplications per two-dimensional symbol) is a factor 1.4, 1.7, 2.2, 2.8 times higher for D=6, 12, 20, 30 than for polarization-multiplexed systems in standard single-mode fiber (D=2).

© 2012 IEEE

PDF Article
More Like This
DSP complexity of mode-division multiplexed receivers

Beril Inan, Bernhard Spinnler, Filipe Ferreira, Dirk van den Borne, Adriana Lobato, Susmita Adhikari, Vincent A. J. M. Sleiffer, Maxim Kuschnerov, Norbert Hanik, and Sander L. Jansen
Opt. Express 20(10) 10859-10869 (2012)

Space-division multiplexing: the next frontier in optical communication

Guifang Li, Neng Bai, Ningbo Zhao, and Cen Xia
Adv. Opt. Photon. 6(4) 413-487 (2014)

Silicon mode multiplexer processing dual-path mode-division multiplexing signals

Chunlei Sun, Yu Yu, Guanyu Chen, and Xinliang Zhang
Opt. Lett. 41(23) 5511-5514 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved