JANUARY 8, 2009 By Stephen Hardy -- Huawei says it successfully completed a field trial of 100-Gbps long-haul network technology with Telefónica in Spain. The trial occurred over a link between Valladolid and Zaragoza, a total transmission distance of 1022 km, without electrical regeneration.
Telefonica also has trialed 100-Gbps technology from Alcatel-Lucent.
The latest trial used Huawei' s OSN 6800 WDM/OTN transport platform with the transponder inserted in subracks. As in the Alcatel-Lucent trial, this test featured data rates of up to 112 Gbps. The link passed through 20 spans of standard G.652 fiber with the concatenation of 10 sets of ROADMs, 33 EDFA amplifiers, and two sets of mux/demux equipment.
The trial also demonstrated performance within the context of an arbitrarily mixed 10G/40G/100G transport scenario with 50-GHz channel spacing. This aspect of the trial emphasizes the ability to support a smooth upgrade from 10G to 40G/100G, Huawei says.
While Huawei did not disclose the modulation format used, it has described the OSN 6800's 100G capabilities as "compatible with both advanced coding modulation and coherent detection techniques."
"It' s an honor to work with Telefònica in completing the 100G field trial successfully," said Christian Chua, president of Huawei' s Transport Network Product Line. "Huawei will continue to collaborate with leading global operators like Telefònica to further advance 100G technology."