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SLM-Based Mode Division Multiplexing System With 6×6 Sparse Equalization

Shi, K; Feng, F; Gordon, GSD; Wilkinson, TD; Thomsen, BC; (2015) SLM-Based Mode Division Multiplexing System With 6×6 Sparse Equalization. IEEE Photonics Technology Letters , 27 (16) pp. 1687-1690. 10.1109/LPT.2015.2436067. Green open access

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Abstract

We demonstrate a mode division multiplexing (MDM) system over an 8 km conventional graded index multimode fiber. Spatial light modulators (SLMs) are used to multiplex and demultiplex three linearly polarized (LP) modes (LP01, LP11a, and LP11b) in two polarizations. A 6 × 6 sparse frequency domain equalizer (FDE) is used as the channel impulse response of the SLM-based MDM system is found to be sparse due to the large crosstalk at the mode MUX/DEMUX and small coupling in the fiber. The signal transmitted on each mode is recovered with improved performance over conventional FDEs. The results indicate that this system can be used in short reach transmission applications to increase the system capacity.

Type: Article
Title: SLM-Based Mode Division Multiplexing System With 6×6 Sparse Equalization
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/LPT.2015.2436067
Publisher version: http://dx.doi.org/10.1109/LPT.2015.2436067
Language: English
Additional information: © 2015 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.
Keywords: Mode division multiplexing, sparse equalizer, spatial light modulator
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1468996
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