40 Gb/s CAP32 System With DD-LMS Equalizer for Short Reach Optical Transmissions

被引：61
作者：
Tao, Li [1 ,2 ]
Wang, Yiguang [1 ]
Gao, Yuliang [3 ]
Lau, Alan Pak Tao [3 ]
Chi, Nan [1 ]
Lu, Chao [2 ]
机构：
[1] Fudan Univ, Dept Commun Sci & Engn, Shanghai 200433, Peoples R China
[2] Hong Kong Polytech Univ, Elect & Informat Engn Dept, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China
[3] Hong Kong Polytech Univ, Dept Elect Engn, Photon Res Ctr, Hong Kong, Hong Kong, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 23期
关键词：
Carrierless amplitude and phase; adaptive equalization; DD-LMS; MULTILEVEL;
D O I：
10.1109/LPT.2013.2287529
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：
Carrierless amplitude and phase (CAP) modulation is a promising candidate for short reach optical communications. In this letter, we propose the use of decision-directed least mean square (DD-LMS) adaptive equalization algorithm for high-order CAP transmission systems. The optimal length of taps and step size of DD-LMS algorithm is investigated for 30 Gb/s and 40 Gb/s CAP32 systems. A hybrid equalization technique that consists of DD-LMS and its aided two-stage pre-convergence is proposed that allows experimental transmission of 40 Gb/s CAP32 40 km standard single mode fiber (SSMF).
引用
收藏
页码：2346 / 2349
页数：4
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