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

Lailson F.Dos Santos; Filipe Ferreira; Andrew D. Ellis; Darli A.A. Mello

doi:10.1109/JPHOT.2019.2899078

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

Lailson F.Dos Santos, Filipe Ferreira, Andrew D. Ellis, Darli A.A. Mello

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	8651480
Journal	IEEE Photonics Journal
Volume	11
Issue number	2
Early online date	25 Feb 2019
DOIs	https://doi.org/10.1109/JPHOT.2019.2899078
Publication status	Published - 25 Feb 2019

Bibliographical note

© 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).

Keywords

MIMO equalization
Sub-band transmission
mode multiplexing
space-division multiplexing

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10.1109/JPHOT.2019.2899078

Filter Bank Multi-Sub-Band Transmission
© 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).
Accepted author manuscript, 439 KB

Cite this

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abstract = "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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N2 - 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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Filter Bank Multi-Sub-Band Transmission for Optical Systems with Mode Multiplexing

Abstract

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Keywords

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