Verizon Communications and NEC Corporation recently announced that their partnership has once again helped them set what they claim to be an industry record for "highest-capacity transmissions for regional and long-haul distances over field fibre."
The two companies said they set the record after successfully conducting a field trial late last year. The results of this trial were accepted and presented at the Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC) Conference and Expo last month in Anaheim, California, US.
The field trial involved transmitting 40.5 terabits per second (1 terabit equals 1,000 gigabits) for a long-haul distance of more than 1,800 km (1,118 miles) and 54.2 Tbps over a regional distance of more than 630 km (391 miles), using Verizon's fibre loop outside Dallas. This process involved tightly packing optical channels in two bands of the optical fibre spectrum -- the C-band and the L-band -- compared to only one optical band as used in previous trials.
"Successful scientific accomplishments such as this demonstrate that Verizon is taking major steps to advance the industry's understanding of high-capacity optical technology," said Ed Chan, vice president of network technology, Verizon. "Verizon continues to address the challenge of maximising performance on our global network while providing lasting business value and best-in-class services for our customers."
This successful field trial means operators need not deploy new fibre to transmit in high capacity, in effect helping operators make better use of their network infrastructure. This capability is useful at a time when there is demand for high capacity transmission because of multimedia services, and wireless and real-time applications.
"By packing optical channels together and varying different properties of the lightwaves for specific transmission conditions, these trials prove the feasibility and related efficiencies of deploying up to 40 Tbps for long haul distances and more than 50 Tbps for regional distances," the companies said.
"NEC has been relentless in accelerating research and deployment of advanced optical networking solutions to help global carriers to meet the growth in network traffic," said Toshio Suzuki, general manager, Converged Network Division, NEC Corporation, Tokyo. "This field trial with Verizon is an exciting achievement that confirms our technology leadership and demonstrates the feasibility of delivering unmatched capacity over existing network infrastructure by utilising all available frequency spectrum in optical fibres in the most effective manner."
The companies added that this latest field success marks the third consecutive year that the two companies have set industry records. In 2011 and 2012, Verizon and NEC Corporation of America also set industry records for transmitting high bit-rate technologies over field fibre.
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