强度调制直接检测非正交光时域重叠复用系统

doi:10.13190/j.jbupt.2021-263

北京邮电大学学报 ›› 2022, Vol. 45 ›› Issue (3): 81-85.doi: 10.13190/j.jbupt.2021-263

强度调制直接检测非正交光时域重叠复用系统

刘金权¹, 刘海丹¹, 王君健², 王道斌³, 高冠军¹

1. 北京邮电大学电子工程学院, 北京 100876;
2. 中国雄安集团基础建设有限公司, 保定 071700;
3. 兰州理工大学理学院, 兰州 730050

收稿日期:2021-11-19 出版日期:2022-06-28 发布日期:2022-06-01
通讯作者: 高冠军(1984—),男,副教授,邮箱:ggj@bupt.edu.cn。 E-mail:ggj@bupt.edu.cn
作者简介:刘金权(1997—),男,硕士生。
基金资助:
国家自然科学基金项目(U1831110)

Non-Orthogonal Optical Overlapped Time Multiplexing System for Intensity Modulation Direct Detection

LIU Jinquan¹, LIU Haidan¹, WANG Junjian², WANG Daobin³, GAO Guanjun¹

1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876,China;
2. Infrastructure Construction Company Limited, China Xiongan Group, Baoding 071700, China;
3. School of Science, Lanzhou University of Technology, Lanzhou 730050, China

Received:2021-11-19 Online:2022-06-28 Published:2022-06-01

摘要/Abstract

摘要： 时域重叠复用是提升通信系统频谱效率和性能的有效方式,设计了基于强度调制直接检测的非正交光时域重叠复用系统,并进行实验验证。论文比较了非正交光时域重叠复用系统与同速率脉冲振幅调制系统的性能。实验结果表明,在矩形成型条件下经2重,3重,4重非正交光时域重叠复用系统调制的信号与相同比特速率的4电平,8电平,16电平脉冲振幅调制系统的信号相比,达到硬判决前向纠错门限所需的最小接收光功率分别降低了2.5dB,4.5dB和8.5dB。

关键词: 非正交光时域重叠复用, 强度调制直接检测, 脉冲振幅调制

Abstract: Overlapped time domain multiplexing is one of the most efficient manners to improve the communication system spectral efficiency and performance. A non-orthogonal optical overlapped time domain multiplexing system based on intensity modulation and direct detection is designed, and is demonstrated experimentally. The performance of non-orthogonal optical overlapped time division multiplexing system is compared with pulse amplitude modulation system that has the same bitrate with the proposed system. Experimental results show that when compared to the signals modulated by 4, 8 and 16 pulse amplitude modulation, the minimum receiver optical power of the signals modulated by the proposed system with rectangular pulse shaping of two, three and four fold overlapping are reduced by 2.5, 4.5 and 8.5dB, respectively, when satistying the hard detection-forward error correction threshold limit.

Key words: non-orthogonal optical overlapped time domain multiplexing, intensity modulation direct detection, pulse amplitude modulation

中图分类号:

TN913.7

刘金权, 刘海丹, 王君健, 王道斌, 高冠军. 强度调制直接检测非正交光时域重叠复用系统[J]. 北京邮电大学学报, 2022, 45(3): 81-85.

LIU Jinquan, LIU Haidan, WANG Junjian, WANG Daobin, GAO Guanjun. Non-Orthogonal Optical Overlapped Time Multiplexing System for Intensity Modulation Direct Detection[J]. Journal of Beijing University of Posts and Telecommunications, 2022, 45(3): 81-85.

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强度调制直接检测非正交光时域重叠复用系统

Non-Orthogonal Optical Overlapped Time Multiplexing System for Intensity Modulation Direct Detection

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