Demostration of 520 Gb/s/λ pre-equalized DFT-spread PDM-16QAM-OFDM signal transmission

Fan Li; Jianjun Yu; Zizheng Cao; Ming Chen; Junwen Zhang; Xinying Li

doi:10.1364/OE.24.002648

Demostration of 520 Gb/s/λ pre-equalized DFT-spread PDM-16QAM-OFDM signal transmission

Fan Li, Jianjun Yu, Zizheng Cao, Ming Chen, Junwen Zhang, Xinying Li

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

29 Citations (Scopus)

Abstract

In this paper, we successfully transmit 8 × 520 Gb/s preequalized DFT-spread PDM-16QAM orthogonal frequency-division multiplexing (OFDM) signal over 840 km SMF with BER under 2.4 × 10^-2. We discuss how to obtain accurate tranceivers' response during preequalization for DFT-spread OFDM with coherent detection and we find conventional OFDM symbols training sequences (TSs) outperform DFTspread OFDM symbols TSs in obtaining channel response for preequalization and equalization. Additionally, the optimal IFFT/FFT size is explored for the pre-equalized DFT-spread PDM-16QAM-OFDM transmission systems. It is the first time to realize 400 Gb/s/λ net rate OFDM signal transmission.

Original language	English
Pages (from-to)	2648-2654
Number of pages	7
Journal	Optics Express
Volume	24
Issue number	3
DOIs	https://doi.org/10.1364/OE.24.002648
Publication status	Published - 8 Feb 2016
Externally published	Yes

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title = "Demostration of 520 Gb/s/λ pre-equalized DFT-spread PDM-16QAM-OFDM signal transmission",

abstract = "In this paper, we successfully transmit 8 × 520 Gb/s preequalized DFT-spread PDM-16QAM orthogonal frequency-division multiplexing (OFDM) signal over 840 km SMF with BER under 2.4 × 10-2. We discuss how to obtain accurate tranceivers' response during preequalization for DFT-spread OFDM with coherent detection and we find conventional OFDM symbols training sequences (TSs) outperform DFTspread OFDM symbols TSs in obtaining channel response for preequalization and equalization. Additionally, the optimal IFFT/FFT size is explored for the pre-equalized DFT-spread PDM-16QAM-OFDM transmission systems. It is the first time to realize 400 Gb/s/λ net rate OFDM signal transmission.",

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AU - Li, Fan

AU - Yu, Jianjun

AU - Cao, Zizheng

AU - Chen, Ming

AU - Zhang, Junwen

AU - Li, Xinying

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AB - In this paper, we successfully transmit 8 × 520 Gb/s preequalized DFT-spread PDM-16QAM orthogonal frequency-division multiplexing (OFDM) signal over 840 km SMF with BER under 2.4 × 10-2. We discuss how to obtain accurate tranceivers' response during preequalization for DFT-spread OFDM with coherent detection and we find conventional OFDM symbols training sequences (TSs) outperform DFTspread OFDM symbols TSs in obtaining channel response for preequalization and equalization. Additionally, the optimal IFFT/FFT size is explored for the pre-equalized DFT-spread PDM-16QAM-OFDM transmission systems. It is the first time to realize 400 Gb/s/λ net rate OFDM signal transmission.

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Demostration of 520 Gb/s/λ pre-equalized DFT-spread PDM-16QAM-OFDM signal transmission

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