Telecom Lead America: Verizon and NEC achieved transmit speed of 40.5 terabits per second for a long-haul distance of more than 1,800 kilometers and 54.2 Tb/s over a regional distance of more than 630 kilometers, over field fiber.
Using Verizon’s fiber loop outside Dallas, both Verizon and NEC said they have set an industry record, this time by successfully sending the highest-capacity transmissions for regional and long-haul distances over field fiber.
They achieved the new telecom industry record — third time in a row — by packing optical channels in two bands of the optical fiber spectrum.
In 2011 and 2012, Verizon and NEC set records for transmitting high bit-rate technologies over field fiber.
NEC on Wednesday said previous field transmission trials used a single optical band. This time, both companies expanded from one band to two bands — the C-band and the L-band.
The results of the latest trial, performed in late 2012, were accepted and presented as a post-deadline paper at the OFC/NFOEC Conference and Expo last month in Anaheim, Calif.
The ability to use current field fiber to carry higher capacity rates enables carriers to avoid the need to deploy new fiber and, as a result, better utilize current network infrastructure.
Ed Chan, vice president of network technology for Verizon, said: “We continue to address the challenge of maximizing performance on our global network while providing lasting business value and best-in-class services for our customers.”
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 Tb/s for long haul distances and more than 50 Tb/s for regional distances.
Toshio Suzuki, general manager for the Converged Network Division of NEC Corporation, Tokyo, 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.”
