High-Capacity Scalable Optical Communication for Future Optical Transport Network

📋 论文概要

本文分析了未来光传输网络面临的容量极限问题，指出传统单模光纤在约100 Tb/s时将因光纤非线性达到容量瓶颈。论文探讨了高容量可扩展光通信技术，以应对长期演进移动服务和云服务带来的流量增长。

💡 主要创新点

• 提出未来光传输网络需突破传统单模光纤的非线性容量极限，实现更高容量扩展。
• 基于NTT网络30年容量演进数据，预测了100 Tb/s容量瓶颈的到来时间。

🏷 关键词

📄 原文摘要

The future penetration of long-term-evolution mobile phone services and various data cloud services will continuously accelerate the present traffic evolution. Figure 6.2.1 shows the commercial system capacity evolution of NTT’s network over the last 30 years. The transmission capacity of today’s Optical Transport Network (OTN) exceeds 1Tbit/s based on the conventional single-core singlemode fiber (SMF) at the growth rate about 1.4-to-1.5 times a year. In 10 years however, we will encounter the fundamental capacity limit of conventional SMF at around 100 Tb/s due to optical fiber nonlinearity and the limitation of allowable fiber launched power into the SMF. In this paper, the impact and future scaling of digital signal processing (DSP) on high-capacity OTN are investigated. A high-speed optical communication system with coherent detection aided by DSP ASIC, that is a digital coherent system, has

👥 作者与机构

Yutaka Miyamoto, Masahito Tomizawa

NTT, Yokosuka, Japan