用于大容量光传输系统的新型光纤

发布时间：2018-06-12 03:55

本文选题：超低损耗光纤 + 大有效面积光纤　；参考：《电信科学》2014年06期

【摘要】：多媒体和数据应用程序的快速扩展,驱动骨干网的带宽需求量以前所未有的速率增长。骨干容量增长的同时也给数据中心的带宽和互联带来了更多的挑战。目前光纤制造厂商正不断改善光纤的性能,以满足长途和短距离应用的需求。短期内通过改进传统光纤技术虽然可增加系统容量,但研究表明,单模光纤的传输容量正快速接近香农理论极限。采用空分复用的光纤技术可以克服该限制,为未来的容量增长提供新的解决方案。在本文中,将讨论提高光纤传输系统容量的新型光纤。对应用于长途传输的常规光纤而言,先进的数字信号处理可对色散和偏振模色散等损伤进行完全补偿,因此光纤的衰减和有效面积成为可进一步优化的参数,讨论以上两个参数的品质因数,总结超低损耗和大有效面积光纤的最新研究成果。对于短距离应用,回顾提高多模光纤带宽的方法,讨论多模光纤的发展趋势。对于下一代光纤,重点研究可实现空分复用技术的多芯和少模光纤,该技术可增加系统容量一个数量级。阐述多芯和少模光纤的设计思路,总结该技术的最新进展,最后讨论使用多芯和少模光纤所面临的主要挑战。
[Abstract]:With the rapid expansion of multimedia and data applications, the bandwidth demand of the backbone network is growing at an unprecedented rate. The increase of backbone capacity also brings more challenges to the bandwidth and interconnection of data centers. At present, fiber manufacturers are constantly improving the performance of optical fiber to meet the needs of long-distance and short-range applications. Although the system capacity can be increased by improving the traditional optical fiber technology in the short term, the research shows that the transmission capacity of single-mode fiber is fast approaching the Shannon theoretical limit. This limitation can be overcome by using space division multiplexing (SDR) technology, which can provide a new solution for future capacity growth. In this paper, a new type of fiber is discussed to improve the capacity of optical fiber transmission system. For conventional optical fibers used in long-distance transmission, advanced digital signal processing can completely compensate for the damage such as dispersion and polarization mode dispersion, so the attenuation and effective area of the fiber become parameters that can be further optimized. The quality factors of these two parameters are discussed, and the latest research results of ultra-low loss and large effective area fiber are summarized. For short range applications, the methods to improve the bandwidth of multimode fiber are reviewed, and the development trend of multimode fiber is discussed. For the next generation fiber, we focus on multi-core and low-mode optical fiber which can realize space-division multiplexing technology, which can increase the system capacity by an order of magnitude. This paper describes the design ideas of multi-core and low-mode optical fibers, summarizes the latest development of the technology, and finally discusses the main challenges facing the use of multi-core and low-mode optical fibers.
【作者单位】：康宁股份有限公司科学技术部;康宁光通信中国公司;
【分类号】：TN929.11

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