Transmission of 100-Gb/s VSB DFT-Spread DMT Signal in Short-Reach Optical Communication Systems

Fan Li; Xinying Li; Junwen Zhang; Jianjun Yu

doi:10.1109/JPHOT.2015.2486684

Transmission of 100-Gb/s VSB DFT-Spread DMT Signal in Short-Reach Optical Communication Systems

Fan Li^*, Xinying Li, Junwen Zhang, Jianjun Yu

^*Corresponding author for this work

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

47 Citations (Scopus)

Abstract

In this paper, we experimentally demonstrated transmission of a 100-Gb/s discrete Fourier transform (DFT)-spread 32-quadrature amplitude modulation (QAM) discrete multitone (DMT) signal in an intensity-modulation/direct-detection system utilizing a direct-modulated laser. We find that DFT-spread cannot only reduce the peak-to-average power ratio but also improve the robustness to high-frequency power attenuation and narrow-band interference in the high-speed short-reach optical communication systems. Vestigial sideband (VSB) enabled by a narrow-bandwidth tunable optical filter can be adopted to resist the power fading effect induced by the fiber chromatic dispersion after direct detection. The measured bit error ratio (BER) of 100-Gb/s VSB DFT-spread DMT signal after 20-km large effective area fiber is less than the hard-decision forward-error-correction (HD-FEC) limitation of 3.8 × 10^-3.

Original language	English
Article number	7904307
Journal	IEEE Photonics Journal
Volume	7
Issue number	5
DOIs	https://doi.org/10.1109/JPHOT.2015.2486684
Publication status	Published - 1 Oct 2015
Externally published	Yes

Keywords

32QAM
DFT-spread
DMT
Vestigial sideband (VSB)

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10.1109/JPHOT.2015.2486684

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Li, F., Li, X., Zhang, J., & Yu, J. (2015). Transmission of 100-Gb/s VSB DFT-Spread DMT Signal in Short-Reach Optical Communication Systems. IEEE Photonics Journal, 7(5), Article 7904307. https://doi.org/10.1109/JPHOT.2015.2486684

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title = "Transmission of 100-Gb/s VSB DFT-Spread DMT Signal in Short-Reach Optical Communication Systems",

abstract = "In this paper, we experimentally demonstrated transmission of a 100-Gb/s discrete Fourier transform (DFT)-spread 32-quadrature amplitude modulation (QAM) discrete multitone (DMT) signal in an intensity-modulation/direct-detection system utilizing a direct-modulated laser. We find that DFT-spread cannot only reduce the peak-to-average power ratio but also improve the robustness to high-frequency power attenuation and narrow-band interference in the high-speed short-reach optical communication systems. Vestigial sideband (VSB) enabled by a narrow-bandwidth tunable optical filter can be adopted to resist the power fading effect induced by the fiber chromatic dispersion after direct detection. The measured bit error ratio (BER) of 100-Gb/s VSB DFT-spread DMT signal after 20-km large effective area fiber is less than the hard-decision forward-error-correction (HD-FEC) limitation of 3.8 × 10-3.",

keywords = "32QAM, DFT-spread, DMT, Vestigial sideband (VSB)",

author = "Fan Li and Xinying Li and Junwen Zhang and Jianjun Yu",

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doi = "10.1109/JPHOT.2015.2486684",

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AU - Zhang, Junwen

AU - Yu, Jianjun

PY - 2015/10/1

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N2 - In this paper, we experimentally demonstrated transmission of a 100-Gb/s discrete Fourier transform (DFT)-spread 32-quadrature amplitude modulation (QAM) discrete multitone (DMT) signal in an intensity-modulation/direct-detection system utilizing a direct-modulated laser. We find that DFT-spread cannot only reduce the peak-to-average power ratio but also improve the robustness to high-frequency power attenuation and narrow-band interference in the high-speed short-reach optical communication systems. Vestigial sideband (VSB) enabled by a narrow-bandwidth tunable optical filter can be adopted to resist the power fading effect induced by the fiber chromatic dispersion after direct detection. The measured bit error ratio (BER) of 100-Gb/s VSB DFT-spread DMT signal after 20-km large effective area fiber is less than the hard-decision forward-error-correction (HD-FEC) limitation of 3.8 × 10-3.

AB - In this paper, we experimentally demonstrated transmission of a 100-Gb/s discrete Fourier transform (DFT)-spread 32-quadrature amplitude modulation (QAM) discrete multitone (DMT) signal in an intensity-modulation/direct-detection system utilizing a direct-modulated laser. We find that DFT-spread cannot only reduce the peak-to-average power ratio but also improve the robustness to high-frequency power attenuation and narrow-band interference in the high-speed short-reach optical communication systems. Vestigial sideband (VSB) enabled by a narrow-bandwidth tunable optical filter can be adopted to resist the power fading effect induced by the fiber chromatic dispersion after direct detection. The measured bit error ratio (BER) of 100-Gb/s VSB DFT-spread DMT signal after 20-km large effective area fiber is less than the hard-decision forward-error-correction (HD-FEC) limitation of 3.8 × 10-3.

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ER -

Transmission of 100-Gb/s VSB DFT-Spread DMT Signal in Short-Reach Optical Communication Systems

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