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當前位置:首頁 >> 新聞動態 >> 公司新聞 >> NEC海底光纜通信速

NEC海底光纜通信速度提高至3.5倍

發布時間:2017/8/9 丨 文章來源:admin 丨 瀏覽次數:2465

 據外媒報道,NEC開發出一項技術,將連接國家和地區間信息通信網的海底光纜的通信速度提高至約3.5倍。1條光纖1秒可輸送34.9太比特(terabit)的信息,相當于5億4000萬條電話線。國際間的數據通信量在2年里以2倍的速度急劇增加,為應對國際間數據通信量的迅猛增加,NEC力爭5年后推向實用化。

  海底電纜是將多條光纖捆綁在一起,用于互聯網和電視國際轉播和國際通話。NEC開發的技術能夠在橫跨大西洋的6300千米的距離間傳送信息。由于光通信是在光波上搭載技術并傳輸,可使用的光波數量越多傳輸的容量就越大。NEC通過將波長相同的16根光波稍微錯開,增加了數據傳輸量。

  隨著智能手機的快速普及,通過互聯網觀看視頻的情況出現增多,此外企業間的大數據傳輸也迅速增加。2012年約為30億太比特的國際間數據通信量到14年增至約60億太比特。

  由于國際間通信的99%是通過海底電纜傳輸,僅靠現有的線路無法滿足需求,目前已出現新增投資,在太平洋和大西洋鋪設光纜的行動。但是即便如此,估計10年后也無法滿足需求,因此有必要擴大電纜的通信容量


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