September 3, 2002--Transmode Systems AB, a pioneer of coarse WDM (CWDM) technology, and the British carrier Vtesse Networks have successfully performed a field trial of an amplified CWDM system over 200 km. The trial is the first of its kind.
In this trial, 4 CWDM channels of Gigabit Ethernet were transmitted over 125 km of fiber by using component company Genoa's linear optical amplifier as a booster. By adding an additional linear optical amplifier, the transmission reach can be increased to 200 km.
"Vtesse Networks is implementing a modern, high capacity, low cost data transmission network in the UK. For many of our transmission requirements, including mesh and point-to-point systems, CWDM offers the best balance between performance and cost-effectiveness," says Alan Mitchell, chief technical officer at Vtesse. "The inclusion of Genoa linear optical amplifiers into this CWDM transmission platform allows us to extend span lengths to 100-km and beyond without needing to resort to expensive DWDM equipment."
With no sacrifice of performance, amplified CWDM systems allow carriers like Vtesse to reduce capital and maintenance costs by using less equipment and, even more significant, reduce their civil engineering costs. For further information, please visit the respective companies' Web sites, www.transmode.com and www.vtesse.com.