Telco and ICT provider KPN International and China’s Huawei Technologies have completed a successful pan-European field trial of 400G technology. In a joint press release the pair that the bidirectional optical transport network (OTN)-based 400G network spans 540km between Amsterdam (the Netherlands) and Dusseldorf (Germany). The 400G transmission technology was tested on KPN’s pan-European WDM backbone network, which was deployed by Huawei from 2008 using NG-WDM products and which was subsequently upgraded to coherent 100G by Huawei in 2011.
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