Experimental demonstration of non-iterative interpolation-based partial ICI compensation in100G RGI-DP-CO-OFDM transport systems | Zendy

Mohammad E. Mousa-Pasandi | Zendy; Qunbi Zhuge | Zendy; Xian Xu | Zendy; Mohamed M. Osman | Zendy; Ziad A. El-Sahn | Zendy; Mathieu Chag | Zendy; David V. Plant | Zendy

Open Access

Experimental demonstration of non-iterative interpolation-based partial ICI compensation in100G RGI-DP-CO-OFDM transport systems

Author(s) -

Mohammad E. Mousa-Pasandi,

Qunbi Zhuge,

Xian Xu,

Mohamed M. Osman,

Ziad A. El-Sahn,

Mathieu Chag,

David V. Plant

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.014825

Subject(s) - orthogonal frequency division multiplexing , phase noise , computer science , bit error rate , laser linewidth , interpolation (computer graphics) , computational complexity theory , guard interval , optics , algorithm , electronic engineering , laser , telecommunications , physics , decoding methods , engineering , frame (networking) , channel (broadcasting)

We experimentally investigate the performance of a low-complexity non-iterative phase noise induced inter-carrier interference (ICI) compensation algorithm in reduced-guard-interval dual-polarization coherent-optical orthogonal-frequency-division-multiplexing (RGI-DP-CO-OFDM) transport systems. This interpolation-based ICI compensator estimates the time-domain phase noise samples by a linear interpolation between the CPE estimates of the consecutive OFDM symbols. We experimentally study the performance of this scheme for a 28 Gbaud QPSK RGI-DP-CO-OFDM employing a low cost distributed feedback (DFB) laser. Experimental results using a DFB laser with the linewidth of 2.6 MHz demonstrate 24% and 13% improvement in transmission reach with respect to the conventional equalizer (CE) in presence of weak and strong dispersion-enhanced-phase-noise (DEPN), respectively. A brief analysis of the computational complexity of this scheme in terms of the number of required complex multiplications is provided. This practical approach does not suffer from error propagation while enjoying low computational complexity.

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