ZTE -- a China-based developer of optical-networking products -- says it successfully tested a new family of equipment based on Wavelength Division Multiplexing that can carry data at 1.7 Tbps across 1,087 miles using eight channels, for a total capacity of 216.4 Gbps per wavelength. The company is part of an effort that includes rivals such as Huawei to increase single-channel capacity to meet higher traffic demand.

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