Experimental Demonstration of Four-Channel WDM 560 Gbit/s 128QAM-DMT Using IM/DD for 2-km Optical Interconnect

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

doi:10.1109/JLT.2016.2621052

Experimental Demonstration of Four-Channel WDM 560 Gbit/s 128QAM-DMT Using IM/DD for 2-km Optical Interconnect

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

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

74 Citations (Scopus)

Abstract

In this paper, we experimentally demonstrated a four-channel wavelength-division-multiplex (WDM) 560 Gbit/s 128 quadrature amplitude modulation (128QAM)-Discrete MultiTone (DMT) signal transmission in a short reach interconnect. Coordinated discrete Fourier transform-spread and preequalization are jointly used to simultaneously overcome serious frequency domain power attenuation and reduce the peak-to-average power ratio of the DMT signal. An additional postdecision-directed least mean square equalizer is used afterward to further compensate the channel response and mitigate the devices' implementation penalty. These proposed algorithms and equalizer are validated through experiment in this paper, we achieved the highest capacity signal transmission in the four-channel WDM transmission system using intensitymodulation and directdetection over a 2.4-km single mode fiber with a bit-error-ratio under the hard-decision forward error correction limit of 3.8 × 10^-3.

Original language	English
Article number	7723897
Pages (from-to)	941-948
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	35
Issue number	4
DOIs	https://doi.org/10.1109/JLT.2016.2621052
Publication status	Published - 15 Feb 2017
Externally published	Yes

Keywords

Decision-directed least mean square (DD-LMS)
Discrete multitone (DMT)
discrete Fourier transform-spread (DFT-spread)
optical interconnect
preequalization
wavelength-division-multiplex (WDM)

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10.1109/JLT.2016.2621052

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title = "Experimental Demonstration of Four-Channel WDM 560 Gbit/s 128QAM-DMT Using IM/DD for 2-km Optical Interconnect",

abstract = "In this paper, we experimentally demonstrated a four-channel wavelength-division-multiplex (WDM) 560 Gbit/s 128 quadrature amplitude modulation (128QAM)-Discrete MultiTone (DMT) signal transmission in a short reach interconnect. Coordinated discrete Fourier transform-spread and preequalization are jointly used to simultaneously overcome serious frequency domain power attenuation and reduce the peak-to-average power ratio of the DMT signal. An additional postdecision-directed least mean square equalizer is used afterward to further compensate the channel response and mitigate the devices' implementation penalty. These proposed algorithms and equalizer are validated through experiment in this paper, we achieved the highest capacity signal transmission in the four-channel WDM transmission system using intensitymodulation and directdetection over a 2.4-km single mode fiber with a bit-error-ratio under the hard-decision forward error correction limit of 3.8 × 10-3.",

keywords = "Decision-directed least mean square (DD-LMS), Discrete multitone (DMT), discrete Fourier transform-spread (DFT-spread), optical interconnect, preequalization, wavelength-division-multiplex (WDM)",

author = "Fan Li and Jianjun Yu and Zizheng Cao and Junwen Zhang and Ming Chen and Xinying Li",

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AU - Li, Fan

AU - Yu, Jianjun

AU - Cao, Zizheng

AU - Zhang, Junwen

AU - Chen, Ming

AU - Li, Xinying

PY - 2017/2/15

Y1 - 2017/2/15

N2 - In this paper, we experimentally demonstrated a four-channel wavelength-division-multiplex (WDM) 560 Gbit/s 128 quadrature amplitude modulation (128QAM)-Discrete MultiTone (DMT) signal transmission in a short reach interconnect. Coordinated discrete Fourier transform-spread and preequalization are jointly used to simultaneously overcome serious frequency domain power attenuation and reduce the peak-to-average power ratio of the DMT signal. An additional postdecision-directed least mean square equalizer is used afterward to further compensate the channel response and mitigate the devices' implementation penalty. These proposed algorithms and equalizer are validated through experiment in this paper, we achieved the highest capacity signal transmission in the four-channel WDM transmission system using intensitymodulation and directdetection over a 2.4-km single mode fiber with a bit-error-ratio under the hard-decision forward error correction limit of 3.8 × 10-3.

AB - In this paper, we experimentally demonstrated a four-channel wavelength-division-multiplex (WDM) 560 Gbit/s 128 quadrature amplitude modulation (128QAM)-Discrete MultiTone (DMT) signal transmission in a short reach interconnect. Coordinated discrete Fourier transform-spread and preequalization are jointly used to simultaneously overcome serious frequency domain power attenuation and reduce the peak-to-average power ratio of the DMT signal. An additional postdecision-directed least mean square equalizer is used afterward to further compensate the channel response and mitigate the devices' implementation penalty. These proposed algorithms and equalizer are validated through experiment in this paper, we achieved the highest capacity signal transmission in the four-channel WDM transmission system using intensitymodulation and directdetection over a 2.4-km single mode fiber with a bit-error-ratio under the hard-decision forward error correction limit of 3.8 × 10-3.

KW - Decision-directed least mean square (DD-LMS)

KW - Discrete multitone (DMT)

KW - discrete Fourier transform-spread (DFT-spread)

KW - optical interconnect

KW - preequalization

KW - wavelength-division-multiplex (WDM)

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ER -

Experimental Demonstration of Four-Channel WDM 560 Gbit/s 128QAM-DMT Using IM/DD for 2-km Optical Interconnect

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Keywords

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