| 不同调制格式对400 Gb/s通信系统传输容量和距离的影响 |
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| 引用本文： | 张洪,甘文风.不同调制格式对400 Gb/s通信系统传输容量和距离的影响[J].光通信技术,2021,45(2):32-35. |
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| 作者姓名： | 张洪 甘文风 |
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| 作者单位： | 国家电网公司西南分部,成都610041;国家电网公司西南分部,成都610041 |
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| 摘 要： | 单载波400 Gb/s传输是下一代通信系统的主要应用速率,为提高此速率通信在实际工程应用中的传输效率,理论分析了高速通信系统中不同调制方式与传输谱宽的关系,基于16阶正交幅度调制(16QAM)、16QAM/32QAM混传、32QAM、32QAM/64QAM混传和64QAM 5种不同调制格式,对400 Gb/s传输系统的单波入纤功率、传输容量和传输距离进行了实验研究,实验结果表明调制格式混传模式和单传模式对系统传输容量和传输距离存在着明显的差异。
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| 关 键 词： | 高速通信 调制格式 传输容量 传输跨距 |
Influence of different modulation formats on transmission capacity and distance of 400 Gb/s communication system |
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| ZHANG Hong,GAN Wenfeng.Influence of different modulation formats on transmission capacity and distance of 400 Gb/s communication system[J].Optical Communication Technology,2021,45(2):32-35. |
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| Authors: | ZHANG Hong GAN Wenfeng |
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| Affiliation: | (Southwest Branch of State Grid Corporation of China,Chengdu 610041,China) |
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| Abstract: | Single carrier 400 Gb/s transmission is the main application rate of next generation communication system.In order to improve the transmission efficiency of this rate communication in practical engineering application,the relationship between different modulation modes and transmission spectrum width in high-speed communication system is analyzed theoretically.Based on five different modulation formats of 16 order quadrature amplitude modulation(16QAM),16QAM/32QAM,32QAM,32QAM/64QAM and 64QAM,the single wave input power,transmission capacity and transmission distance of 400 Gb/s transmission system are experimentally studied.The experimental results show that there are obvious differences in transmission capacity and transmission distance between mixed transmission mode and single transmission mode. |
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| Keywords: | high-speed communication modulation format transmission capacity transmission span |
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