140-Gb/s 20-km transmission of PAM-4 Signal at 1.3 μm for short reach communications

Kangping Zhong; Xian Zhou; Yuliang Gao; Wei Chen; Jiangwei Man; Li Zeng; Pak Tao Lau; Chao Lu

doi:10.1109/LPT.2015.2439571

140-Gb/s 20-km transmission of PAM-4 Signal at 1.3 μm for short reach communications

Kangping Zhong, Xian Zhou, Yuliang Gao, Wei Chen, Jiangwei Man, Li Zeng, Pak Tao Lau, Chao Lu

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

119 Citations (Scopus)

Abstract

We experimentally demonstrated 140-Gb/s transmission over 20-km standard single-mode fiber employing pulse-amplitude modulation (PAM)-4 and direct detection (DD) at 1.3 μm. DD faster than Nyquist is employed to compensate for channel impairments. The optimal length of taps of decision directed least mean square and the optimal tap coefficient for digital postfilter are investigated. A receiver sensitivity of -5.5 dBm at bit error rate of 3.8 × 10^-3 is realized for 140-Gb/s PAM-4 signal after 20-km transmission. To the best of our knowledge, this is the highest reported baud rate (70 GBd) of direct detected PAM-4 signal and the highest per channel bit rate with single polarization and DD for short reach communications.

Original language	English
Article number	7115060
Pages (from-to)	1757-1760
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	27
Issue number	16
DOIs	https://doi.org/10.1109/LPT.2015.2439571
Publication status	Published - 15 Aug 2015

Keywords

direct detection
optical modulation
Pulse-amplitude modulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

More information

10.1109/LPT.2015.2439571

Cite this

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title = "140-Gb/s 20-km transmission of PAM-4 Signal at 1.3 μm for short reach communications",

abstract = "We experimentally demonstrated 140-Gb/s transmission over 20-km standard single-mode fiber employing pulse-amplitude modulation (PAM)-4 and direct detection (DD) at 1.3 μm. DD faster than Nyquist is employed to compensate for channel impairments. The optimal length of taps of decision directed least mean square and the optimal tap coefficient for digital postfilter are investigated. A receiver sensitivity of -5.5 dBm at bit error rate of 3.8 × 10-3 is realized for 140-Gb/s PAM-4 signal after 20-km transmission. To the best of our knowledge, this is the highest reported baud rate (70 GBd) of direct detected PAM-4 signal and the highest per channel bit rate with single polarization and DD for short reach communications.",

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AU - Zhong, Kangping

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AU - Chen, Wei

AU - Man, Jiangwei

AU - Zeng, Li

AU - Lau, Pak Tao

AU - Lu, Chao

PY - 2015/8/15

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AB - We experimentally demonstrated 140-Gb/s transmission over 20-km standard single-mode fiber employing pulse-amplitude modulation (PAM)-4 and direct detection (DD) at 1.3 μm. DD faster than Nyquist is employed to compensate for channel impairments. The optimal length of taps of decision directed least mean square and the optimal tap coefficient for digital postfilter are investigated. A receiver sensitivity of -5.5 dBm at bit error rate of 3.8 × 10-3 is realized for 140-Gb/s PAM-4 signal after 20-km transmission. To the best of our knowledge, this is the highest reported baud rate (70 GBd) of direct detected PAM-4 signal and the highest per channel bit rate with single polarization and DD for short reach communications.

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140-Gb/s 20-km transmission of PAM-4 Signal at 1.3 μm for short reach communications

Abstract

Keywords

ASJC Scopus subject areas

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