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阿尔卡特公司近日推出两种全新的先进光纤--面向城域网的Teralight Metro以及为陆地长途和超长距离设计的Teralight Ultra。在继续扩大光基础设施的传输范围和容量的过程中，为了确保在整个网络中以最低成本实现始终如一的最佳性能，运营商面临着一系列挑战。Teralight Metro和
Alcatel recently introduced two new and advanced optical fibers, the Teralight Metro for Metro and the Teralight Ultra for long haul and long haul land. As it continues to expand the reach and capacity of its optical infrastructure, operators face a number of challenges in ensuring the best possible performance at the lowest cost for the entire network. Teralight Metro and