140-Gb/s 20-km Transmission of PAM-4 Signal at 1.3 μm for Short Reach Communications

被引：94

作者：

Zhong, Kangping ^{[1
]}

Zhou, Xian ^{[1
,2
]}

Gao, Yuliang ^{[3
]}

Chen, Wei ^{[4
]}

Man, Jiangwei ^{[4
]}

Zeng, Li ^{[4
]}

Lau, Alan Pak Tao ^{[3
]}

Lu, Chao ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect & Informat Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China

[2] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China

[3] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China

[4] Huawei Technol Co Ltd, Fixed Network Res & Dev Dept, Shenzhen 518129, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2015年 / 27卷 / 16期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Pulse-amplitude modulation; direct detection; optical modulation; MODULATION;

D O I：

10.1109/LPT.2015.2439571

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 mu m. 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 3.8x10(-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.

引用

页码：1757 / 1760

页数：4

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