Telstra, Ericsson and Ciena claim 400G speed/efficiency record

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Image credit: TK Kurikawa |

Telstra, Ericsson and Ciena announced they had successfully demonstrated 400G technology over 61.5 GHz spectrum on Telstra’s transmission network in Melbourne – which they claim not only enabled speeds of up to 30.4 Tbps per fiber pair, but also achieved the highest spectral efficiency per fiber pair ever in a live environment.

Ciena said the demo was made possible via the deployment of software programmable 400Gbps wavelengths using its WaveLogic Ai modem technology on the 6500 Packet-Optical Platform, in combination with Ciena’s Blue Planet Manage Control Plan (MCP) and Liquid Spectrum applications.

This technology will be introduced as part of the upgrade Telstra is completing across its long-haul, metro and regional optical network under the ‘Networks for the Future’ program to deliver increased capacity, enhanced resiliency and fully programmable capabilities.

Ciena also said Telstra has deployed a fully programmable coherent modem developed by Ciena that offers up to three times data capacity and enables up to 60% reduction in power per bit compared to the modem technology currently deployed in Telstra’s network. These technologies also open up the opportunity for more flexibility and dynamic software-based control of Telstra’s optical transport network. This technology gives Telstra the ability to adjust bandwidth in the network in real-time to optimize capacity and fibre investment to meet customer demands, said David Robertson, Director of IP and Transport Engineering at Telstra.

“Over the next five years we forecast traffic on our network will grow by five times. We are investing in our network and developing these innovations to meet this growing demand by providing unprecedented levels of scale, automation and intelligence,” said Robertson.

Ericsson provides end-to-end systems integration to supply, install, and integrate the next generation of optical equipment into Telstra’s transmission network, and managed the deployment of technology for this demonstration, together with Telstra and Ciena.

“Deployment of these technologies will help Telstra to prepare for the ever-increasing demand for data,” said Emilio Romeo, head of Ericsson Australia and New Zealand. “This will give Telstra the ability to predict and address connectivity and capacity challenges as they emerge, enabling them to respond and allocate capacity across paths in real time.”

Ciena CTO Steve Alexander added, “As high-bandwidth applications become further ingrained in our daily lives, the implementation of a more intelligent and adaptive network – one that lets operators eliminate complexity by combining intelligent automation, real-time performance monitoring, and the ability to continuously tune their network – is critical. These accomplishments will prepare Telstra’s network to better respond to customer demands.”

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