PAM-8 IM/DD Transmission Based on Modified Lookup Table Nonlinear Predistortion

Jiao Zhang; Pengqi Gou; Miao Kong; Kaibo Fang; Jiangnan Xiao; Qi Zhang; Xiangjun Xin; Jianjun Yu

doi:10.1109/JPHOT.2018.2828869

PAM-8 IM/DD Transmission Based on Modified Lookup Table Nonlinear Predistortion

Jiao Zhang, Pengqi Gou, Miao Kong, Kaibo Fang, Jiangnan Xiao, Qi Zhang, Xiangjun Xin, Jianjun Yu^*

^*Corresponding author for this work

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

44 Citations (Scopus)

Abstract

In this paper, a modified lookup table (LUT) nonlinear predistortion method is proposed. With the modified LUT method, the number of patterns and the computational complexity can be reduced by half with a similar system performance comparing with normal LUT. We experimentally demonstrate an 8-ary pulse amplitude modulation (PAM-8) intensity modulation and direct detection (IM/DD) transmission over 15-km fiber using a directly modulated laser (DML) based on modified LUT. Around 1-dB receiver sensitivity improvement at bit-error ratio of 3.8 × 10^-3 is achieved by adopting a modified LUT over 15-km fiber transmission at 2 Gbaud based on a commercial DML. In addition, we also experimentally demonstrate Mach-Zehnder modulator based 40 Gbaud PAM-8 IM/DD transmission under back-to-back case, about 1-dB receiver sensitivity can also be improved.

Original language	English
Article number	7903709
Journal	IEEE Photonics Journal
Volume	10
Issue number	3
DOIs	https://doi.org/10.1109/JPHOT.2018.2828869
Publication status	Published - Jun 2018
Externally published	Yes

Keywords

Pulse amplitude modulation (PAM)
intensity modulation and direct detection (IM/DD)
look-up table (LUT) nonlinear pre-distortion

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10.1109/JPHOT.2018.2828869

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Zhang, J., Gou, P., Kong, M., Fang, K., Xiao, J., Zhang, Q., Xin, X., & Yu, J. (2018). PAM-8 IM/DD Transmission Based on Modified Lookup Table Nonlinear Predistortion. IEEE Photonics Journal, 10(3), Article 7903709. https://doi.org/10.1109/JPHOT.2018.2828869

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abstract = "In this paper, a modified lookup table (LUT) nonlinear predistortion method is proposed. With the modified LUT method, the number of patterns and the computational complexity can be reduced by half with a similar system performance comparing with normal LUT. We experimentally demonstrate an 8-ary pulse amplitude modulation (PAM-8) intensity modulation and direct detection (IM/DD) transmission over 15-km fiber using a directly modulated laser (DML) based on modified LUT. Around 1-dB receiver sensitivity improvement at bit-error ratio of 3.8 × 10-3 is achieved by adopting a modified LUT over 15-km fiber transmission at 2 Gbaud based on a commercial DML. In addition, we also experimentally demonstrate Mach-Zehnder modulator based 40 Gbaud PAM-8 IM/DD transmission under back-to-back case, about 1-dB receiver sensitivity can also be improved.",

keywords = "Pulse amplitude modulation (PAM), intensity modulation and direct detection (IM/DD), look-up table (LUT) nonlinear pre-distortion",

author = "Jiao Zhang and Pengqi Gou and Miao Kong and Kaibo Fang and Jiangnan Xiao and Qi Zhang and Xiangjun Xin and Jianjun Yu",

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AU - Zhang, Jiao

AU - Gou, Pengqi

AU - Kong, Miao

AU - Fang, Kaibo

AU - Xiao, Jiangnan

AU - Zhang, Qi

AU - Xin, Xiangjun

AU - Yu, Jianjun

PY - 2018/6

Y1 - 2018/6

N2 - In this paper, a modified lookup table (LUT) nonlinear predistortion method is proposed. With the modified LUT method, the number of patterns and the computational complexity can be reduced by half with a similar system performance comparing with normal LUT. We experimentally demonstrate an 8-ary pulse amplitude modulation (PAM-8) intensity modulation and direct detection (IM/DD) transmission over 15-km fiber using a directly modulated laser (DML) based on modified LUT. Around 1-dB receiver sensitivity improvement at bit-error ratio of 3.8 × 10-3 is achieved by adopting a modified LUT over 15-km fiber transmission at 2 Gbaud based on a commercial DML. In addition, we also experimentally demonstrate Mach-Zehnder modulator based 40 Gbaud PAM-8 IM/DD transmission under back-to-back case, about 1-dB receiver sensitivity can also be improved.

AB - In this paper, a modified lookup table (LUT) nonlinear predistortion method is proposed. With the modified LUT method, the number of patterns and the computational complexity can be reduced by half with a similar system performance comparing with normal LUT. We experimentally demonstrate an 8-ary pulse amplitude modulation (PAM-8) intensity modulation and direct detection (IM/DD) transmission over 15-km fiber using a directly modulated laser (DML) based on modified LUT. Around 1-dB receiver sensitivity improvement at bit-error ratio of 3.8 × 10-3 is achieved by adopting a modified LUT over 15-km fiber transmission at 2 Gbaud based on a commercial DML. In addition, we also experimentally demonstrate Mach-Zehnder modulator based 40 Gbaud PAM-8 IM/DD transmission under back-to-back case, about 1-dB receiver sensitivity can also be improved.

KW - Pulse amplitude modulation (PAM)

KW - intensity modulation and direct detection (IM/DD)

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PAM-8 IM/DD Transmission Based on Modified Lookup Table Nonlinear Predistortion

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