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中国光传输系统实验获突破 可实现135亿人同时通话
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Topic: 中国光传输系统实验获突破 可实现135亿人同时通话 (Read 457 times)
btc_sunny
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中国光传输系统实验获突破 可实现135亿人同时通话
February 05, 2017, 07:45:50 AM
#1
新华网北京2月4日电 记者从烽火科技获悉,经过持续攻关,近日,烽火科技在国内首次实现560Tb/s超大容量波分复用及空分复用的光传输系统实验,传输容量是日常用标准单模光纤传输系统最大容量的五倍,可以实现一根光纤上67.5亿对人(135亿人)同时通话,标志着我国在“超大容量、超长距离、超高速率”光通信系统研究领域迈向了新的台阶。
本次实验采用具有烽火科技自主知识产权的单模七芯光纤为传输介质。和普通光纤不同的是,一根单模七芯光纤相当于七根普通光纤合而为一。假如将光纤信息传输类比于高速公路,普通光纤如果是单一车道,那么单模七芯光纤就相当于并行七车道,能够提供7倍于普通光纤的传输能力。通过工艺及技术上的突破,烽火自主知识产权的单模七芯光纤解决了多芯光纤间串扰难题,隔离度达到-70dB,把“车道”与“车道”之间的干扰和影响降到了最低。
在传输介质进行创新的同时,本次实验所采用的系统设备也为“超大容量、超大速率,超长距离”光传输提供了有力支撑。系统设备相当于整个光传输系统的枢纽,该系统设备使用16个单光源,经过光多载波发生装置,经过光多载波发生装置一共产生375个光子载波,组成375个间隔为25GHz的光传输信道,单芯传输容量为80Tbit/s,系统传输总容量达到560Tbit/s,经专家组测试验证,此次实现的“560Tbit/s超大容量单模多芯光纤光传输系统”为国内首次,达到了国际先进水平。
随着移动互联网、云计算、大数据、物联网应用的快速兴起,流量激增给信息通信网络带来巨大挑战,解决网络数据流的“井喷式增长”难题正成为全球信息通信领域的竞争高地,烽火科技致力于通过持续创新来重塑未来通信网络,不断为未来大容量光传输发展提供解决方案。
近年来,烽火科技在“超大容量、超高速率、超长距离”光通信传输领域,连续多次诞生重大科技成果。2014年,首次实现一根普通标准单模光纤C+L波段100.3Tb/s容量传输实验,与中国探月工程三期再入返回飞行试验一同入选由两院院士评选的“中国十大科技进展新闻”。2015年,传输容量突破200Tb/s。同年,“三超”技术商用实践取得重大突破,完成了2.5Gb/s 468km超长跨距相干光传输系统福州电网示范工程。该工程为目前国内首个自研的数字相干超长跨距光传输系统工程,规模商用预计在2017年全面展开。
随着5G的逐步试商用以及网络云化,我国在“超大容量、超长距离、超高速率”的研究,已为未来信息技术应用及产业发展储备了关键技术,也助推我国在未来信息技术领域处于国际前列。
作为国内光通信领域的领先企业,烽火科技坚持面向世界光通信发展前沿,高标准、高投入;坚持面向宽带中国主战场,强导向、强市场;坚持面向国家网络信息安全重大需求,重转型、重布局,在光通信领域的技术创新实现了全球领先,通过在信息化服务工业化持续聚力,为供给侧改革提供了有力支撑。
未来,烽火科技将持续加快推进以国家重点实验室为核心的知识创新平台建设、以企业技术研发中心为核心的技术创新平台建设和以“双创”孵化器为核心的支撑服务平台建设,加大关键核心、高端光电子器件和芯片的研发突破,努力建设全球光电子信息产业科技创新高地。
sixiangzhe
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
February 05, 2017, 10:09:45 AM
#2
厉害,中国加油。
Chris Elliott
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
February 06, 2017, 07:52:22 AM
#3
中国加油~
Red-crowned crane
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
February 07, 2017, 01:19:01 AM
#4
我们的网速还是世界最慢。
foladgoad
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
February 07, 2017, 03:35:43 AM
#5
移动话费超贵,技术再进步,也感受不到
shirlyn1314
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
February 07, 2017, 03:53:56 AM
#6
中国加油~
maydik
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
February 07, 2017, 04:28:04 AM
#7
真心祝贺,不过我关心的是我们何时可以体验到
tanmao
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Re: 中国光传输系统实验获突破 可实现135亿人同时通话
March 26, 2017, 08:40:49 AM
#8
不错,近几年中国确实发展不错
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