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NBN Co and Coriant Successfully Trial Terabit Super-channel in SE Queensland, Australia

SAN FRANCISCO, California, March 11, 2014 - NBN Co and Coriant today announced the successful completion of a one Terabit per second (Tbps) super-channel transmission trial over a 1,066 km fibre optic ring in South East Queensland, Australia using Coriant's innovative FlexiGrid technology on NBNCo's Transit Network.

The National Broadband Network is a wholesale only, open access communications network that delivers very fast broadband and telephony services across Australia.

NBN Co's Transit network is built using established optical fibre made available by third party carriers on long term leases and Dense Wavelength Division Multiplexing Equipment that provides connectivity from the access networks, including fibre and wireless, through to points of interconnect with NBN Co's wholesale customers.

The field trial was conducted on NBN Co's network using commercially available hardware and pre-commercial software, over the existing fibre that is currently being integrated into NBN Co's Transit Network.

The trial demonstrated a Tbps super-channel transmission in a 369GHz grid over 1,066 km. It showed a greater than 35 percent improvement in spectral efficiency which significantly increases the capacity of the system.

The trial also demonstrated the flexible allocation of the super-channel by placing it in three separate locations within the c-band which maximizes use of existing fibre resources. This capability, in conjunction with the improvements in spectral efficiency, provides a maximum theoretical transmission capacity of 13 Tbps on existing hardware and fibre over a distance greater than 1,000 km.

The analysis of the results from the trial in conjunction with equipment test results showed that a calculated distance of 1,600 km could be achieved.

Gary McLaren, NBN Co's Chief Technology Officer said, "We are pleased with the results of the trial with Coriant over our Transit Network. It highlights how established backbone infrastructure can be upgraded with sophisticated optical and electronic equipment to provide extra capacity for the future needs of the National Broadband Network.

"This proof point highlights that the existing transit network is robust and capable, as we rollout a mixture of Fibre-to-the-node technologies (FTTx) being designed to provide access to voice and broadband services faster, cheaper and more efficiently to Australian homes and businesses no matter their location across the country.

"As high-bandwidth applications and the growth of internet usage drive increased demand for network capacity, the ease of upgrading to higher transmission rates in our Transit Network will enable us to continue to deliver a reliable and high-quality broadband experience for our customers."

Using commercial-grade Coriant hiT 7300 DWDM system hardware, including innovative FlexiGrid technology, the trial demonstrated NBN Co's ability to efficiently scale its network as end-user traffic demands in Australia increase. FlexiGrid technology is based on an adaptive channel grid with wavelengths dynamically selected based on the data rate. By increasing channel density, FlexiGrid technology enables NBN Co to maximize the use of the existing fibre optic infrastructure, while maintaining network flexibility, resiliency and performance.

Coriant is a strategic supplier of Optical Transmission Equipment and management systems to NBN Co. The company also provides specialized optical networking support services including design, logistics, installation, commissioning, local pre-deployment system testing and maintenance.

"We are pleased to cooperate with NBN Co to demonstrate the value that next-generation optical networking technologies can bring to broadband users in Australia," said Uwe Fischer, Chief Technology Officer, Coriant. "We are committed to helping operators like NBN Co meet the capacity requirements of residential and business end-user services with systems capable of seamless and efficient scalability to one Terabit and beyond."

The Terabit super-channel capability will be showcased as part of Coriant's end-to-end packet optical networking innovations at OFC 2014, the largest global conference for optical communications and networks professionals.

The test equipment and associated support for the trial was provided by JDSU.

About NBN Co
NBN Co was established on 9 April 2009 to design, build and operate the National Broadband Network (NBN). NBN Co is an Australian Government Business Enterprise. The National Broadband Network is a national wholesale only, open access communications network that is delivering very fast broadband and telephony services across Australia.

About Coriant
Coriant, founded as an independent company in 2013, is an industry-leading supplier of dynamic metro-to-core transport solutions. We serve over 500 customers globally, including 90% of the world's top 50 service providers. Our end-to-end product portfolio and software-defined networking solutions enable mobile and fixed lined operators to reduce network complexity, increase service velocity, and improve resource utilization as transport networks scale in response to a new generation of high-bandwidth services and applications. Following the recent merger with Tellabs, the company operates worldwide in more than 48 countries, with R&D centers in Asia, Germany, Portugal and the United States, as well as a state-of-the-art production center in Berlin, Germany. Learn more at

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Source: RealWire

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