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INVESTIGATION ON HYBRID WDM (DWDM+CWDM) FREE SPACE OPTICAL COMMUNICATION SYSTEM [PDF]
ICTACT Journal on Communication Technology, 2015 Free Space Optical (FSO) communication is being realized as an effective solution for future accessing networks, offering light passed through air. The performance of FSO can be primarily degraded by various atmospheric attenuation namely, rain, fog ...
S. Robinson, S. Jasmine, R. Pavithra
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Concise Security Bounds for Practical Decoy-State Quantum Key Distribution
, 2013 Due to its ability to tolerate high channel loss, decoy-state quantum key distribution (QKD) has been one of the main focuses within the QKD community. Notably, several experimental groups have demonstrated that it is secure and feasible under real-world
Curty, Marcos +4 more
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Guangtongxin yanjiu, 2015 综述了高速DWDM（密集波分复用）系统中的关键技术,包括QPSK（四相相移键控）、8QAM（8进制正交幅度调制）和16QAM（16进制正交幅度调制）等新型调制格式、超低损耗光纤/拉曼放大和新型光集成器件,并分析、比较了这些关键技术对DWDM系统传输产生的不同影响。在此基础上,介绍了近年来DWDM大容量传输的一些成功试验。试验表明,这些关键技术有着广阔的应用前景。
章喆, 陈征, 马卫东
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Guangtongxin yanjiu, 2003 针对当前密集波分复用（DWDM）技术迅猛发展的趋势,对一些在DWDM系统测试中应用较为广泛的高精度光波长测量技术进行了介绍,并对光波长测量仪表的开发方向作了一定的探讨.
吕辉, 黄龙波
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مجلة جامعة دمشق للعلوم الهندسيةقدم هذا البحث تصميم وتنفيذ لنظامي اتصالات تعدد الإرسال بتقسيم الطول الموجي الكثيف، التقليدي DWDM، والمعتمد على تقنية التعديل المطالي التربيعي ثنائي الاستقطاب من الدرجة 16 DP-16QAM DWDM، وتمت المقارنة بينهما، حيث أن تقنية التعديل DP-16QAM تقدم فعالية ...
حسن محسن الراعي +1 more
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Guangtongxin yanjiu, 2019 在5G前传网络中,单纤双向是重要的特征之一,相比4G和光纤接入（FTTx）网络中的单纤双向,5G前传网络中的单纤双向更为复杂。文章分析了在5G前传网络中实现单纤双向的情况及实现单纤双向关键光器件的原理,并分析了单纤双向系统的串扰源问题。分析结果表明,基于单只密集波分复用（DWDM）器件的DWDM单纤双向方案比基于光环行形器的DWDM单纤双向方案更有优势。
杨春, 胡春琳
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Transmission Loss of Phase-Shifted Fiber Bragg Gratins in Lossy Materials: A Theoretical and Experimental Investigation [PDF]
, 2007 Narrow linewidth transmission filters in lossy materials based phase-shifted fiber Bragg gratings have been investigated experimentally and analytically.
Lit, John W.Y., Liu, Yu, Wei, Li
core +1 more source
Guangtongxin yanjiu, 2001 城域网 （ MAN）概念是由计算机网络演化而来 ,数据通信等电信新技术的发展赋予城域网新的内涵 .DWDM应用于城域网时有一些不同的功能要求 ,包括 Metro DWDM系统的结构、光纤技术 ...
胡伟
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Utilization of 10 Gbps DWDM System with Duobinary Modulation into Passive Optical Network
Journal of Communications Software and Systems, 2018 Passive optical networks are considered to be the most promising solution for future access networks. Growing demand for capability and high bit rate transmission has become an important part of metropolitan optical communication networks in recent years.
Tomáš Huszaník +2 more
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Guangtongxin yanjiu, 2000 对基于 IP over DWDM的新型数据网络体系结构—光互联网络技术进行了探讨 .在分析了三种构造未来信息网络解决方案的基础上 ,着重对基于 IP over DWDM的光互联网络的关键技术 ...
徐荣, 龚倩, 纪越峰, 叶培大
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