High-level QAM OFDM system using DML for low-cost short reach optical communications

Fan Li; Xinying Li; Lin Chen; Y. Xia; C. Ge; Y. Chen

doi:10.1109/LPT.2014.2309660

High-level QAM OFDM system using DML for low-cost short reach optical communications

Fan Li, Xinying Li, Lin Chen, Y. Xia, C. Ge, Y. Chen

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

54 Citations (Scopus)

Abstract

In this letter, we experimentally demonstrated a high level quadrature amplitude modulation (QAM) optical orthogonal frequency division multiplexing (OFDM) transmission system utilizing a cost-effective directly modulated laser. This experiment was enabled by intrasymbol frequency-domain averaging-based channel estimation, large fast Fourier transform size to enhance the resistance of intersymbol interference, and the discrete Fourier transform-spread technique to reduce peak-to-average power ratio. A 31.7-Gbit/s 2048QAM OFDM signal can be successfully transmitted over 20-km large effective area fiber under a 20% soft-decision forward-error-correction threshold (bit error rate of 2.4 × 10^-2.

Original language	English
Article number	6758346
Pages (from-to)	941-944
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	26
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2014.2309660
Publication status	Published - 1 May 2014
Externally published	Yes

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10.1109/LPT.2014.2309660

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abstract = "In this letter, we experimentally demonstrated a high level quadrature amplitude modulation (QAM) optical orthogonal frequency division multiplexing (OFDM) transmission system utilizing a cost-effective directly modulated laser. This experiment was enabled by intrasymbol frequency-domain averaging-based channel estimation, large fast Fourier transform size to enhance the resistance of intersymbol interference, and the discrete Fourier transform-spread technique to reduce peak-to-average power ratio. A 31.7-Gbit/s 2048QAM OFDM signal can be successfully transmitted over 20-km large effective area fiber under a 20% soft-decision forward-error-correction threshold (bit error rate of 2.4 × 10-2.",

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AU - Li, Fan

AU - Li, Xinying

AU - Chen, Lin

AU - Xia, Y.

AU - Ge, C.

AU - Chen, Y.

PY - 2014/5/1

Y1 - 2014/5/1

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AB - In this letter, we experimentally demonstrated a high level quadrature amplitude modulation (QAM) optical orthogonal frequency division multiplexing (OFDM) transmission system utilizing a cost-effective directly modulated laser. This experiment was enabled by intrasymbol frequency-domain averaging-based channel estimation, large fast Fourier transform size to enhance the resistance of intersymbol interference, and the discrete Fourier transform-spread technique to reduce peak-to-average power ratio. A 31.7-Gbit/s 2048QAM OFDM signal can be successfully transmitted over 20-km large effective area fiber under a 20% soft-decision forward-error-correction threshold (bit error rate of 2.4 × 10-2.

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JO - IEEE Photonics Technology Letters

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ER -

High-level QAM OFDM system using DML for low-cost short reach optical communications

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