Filter Bank Multi-Sub-Band Transmission for Optical Systems with Mode Multiplexing


Mode-multiplexed optical transmission is subject to mode coupling and potentially large differential mode delays. In most recent implementations, these effects are compensated for at the receiver by complex adaptive multiple-input multiple-output (MIMO) equalizers. Although frequency-domain MIMO equalization requires a moderate complexity compared to time-domain equalization, the long required fast Fourier transforms may face implementation issues. In this paper, we evaluate an alternative transceiver architecture based on sub-band partitioning, implemented by filter banks, which enables concurrent time-domain equalization. Single-carrier (SC) and multi-sub-band (MSB) mode division multiplexing transmission are simulated using frequency-domain equalization and time-domain equalization, respectively. Their performance is compared in terms of static transmission performance, channel tracking capability, phase noise tolerance, and computational complexity. The results indicate that compared with an equivalent SC solution, the MSB architecture provides a high degree of parallelism at the cost of a penalty of 0.7-1.3 dB for a laser linewidth of 25-100 kHz and a moderate increase in complexity.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: CAPES, FAPESP grants 2015/24341-7 and 2015/24517-8, EU (619732-INSPACE and 654809-HSPACE), and EPSRC (EP/L000091/1-PEACE).
Uncontrolled Keywords: MIMO equalization,Sub-band transmission,mode multiplexing,space-division multiplexing,Atomic and Molecular Physics, and Optics,Electrical and Electronic Engineering
Publication ISSN: 1943-0655
Last Modified: 04 Mar 2024 08:30
Date Deposited: 19 Feb 2019 08:48
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Related URLs: https://ieeexpl ... ocument/8651480 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2019-02-25
Published Online Date: 2019-02-25
Accepted Date: 2019-02-12
Authors: Santos, Lailson F.Dos
Ferreira, Filipe (ORCID Profile 0000-0002-1533-843X)
Ellis, Andrew D. (ORCID Profile 0000-0002-0417-0547)
Mello, Darli A.A.



Version: Accepted Version

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