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ＮＥＣ公司近日宣布，采用高密度波长分解多重ＤＷＤＭ方式，在１８６ ｋｍ无转播的光缆传输线路中成功地实现了６．４ Ｔｂｐｓ（４０ Ｇｂｐｓ×１６０通道）的传输速度。这一成果相当于ＮＥＣ拥有的最高记录３．２８ Ｔｂｐｓ的约两倍，可以通过一条光缆同时传输１００
NEC Corporation recently announced the successful implementation of 6.4 Tbps (40 Gbps × 160 channels) transmission speed in a 186 km unremitting optical cable transmission line using a high-density wavelength division multiple WAN (DWDM) method. This result is equivalent to about twice the maximum record owned by NEC of 3.28 Tbps, which can be transmitted simultaneously by one optical cable