First live 40Gbps optical transmission trial completed

First live 40Gbps optical transmission trial completed

Run over a 10Gbps network with no modifications

Ericsson and Telstra have successfully completed the world's first live network trial for next-generation 40Gbps optical transmission technology in Australia.

The technology trial demonstrated that Telstra's existing 10Gbps Dense Wave Division Multiplexing (DWDM) transmission technology, which carries voice, data and video, can be increased to 40Gbps without major changes to the network.

Telstra's network and technology executive managing director, Dan Burns, said the trial was commissioned as a part of Telstra's forward planning to meet expected growth on the inter-capital networks.

Burns said it demonstrates the capability of the Telstra Next IP network and positions Telstra at the forefront of industry development to implement high capacity long distance transmission.

"Enabling 40Gbps connections between Telstra's IP core routers, will allow us to expand our network capacity in line with expected growth in IP traffic," he said.

The trial was conducted over Telstra's existing 10Gbps 1,121 km coastal and 1,244 km inland optical fiber routes from Sydney to Melbourne.

Ericsson A/NZ CEO, Bill Zikou, CEO, said the trial was conducted over a 10Gbps network with no modification to the existing optic fiber infrastructure.

"Ericsson's DWDM solution, Marconi MHL 3000, provides a seamless in service upgrade of capacity with minimal investment. This means that with Ericsson they would have no need to change the existing optic fiber infrastructure," he said.

This will allow network operators to respond to expected bandwidth increases caused by new residential, mobile and business, packet-based broadband applications.

Ericsson's next-generation 40Gbps optical transmission technology is based on the new modulation format which exhibits high robustness against PMD (Polarization Mode Dispersion - a fiber characteristic which can limit high-speed transmission).

Ericsson has provided Telstra's transmission infrastructure in Australia for a number of years and this infrastructure is part of the Telstra Next IP network.

Only this week telecommunications research firm, Ovum, posted a new five-year forecast for service provider revenues and capital spending.

For the Asia Pacific region (excluding China), Ovum said wireline revenues will decline slightly over the next five years, from $89 billion in 2006 to $84 billion in 2012.

However, mobile revenues will grow two to three percent each year on average, reaching $167 billion by 2012.

Ovum forecasting vice president, John Lively, said Japan and Australia have the largest share of the Asia Pacific region's fixed telecom services market, and competitive pressures combined with mobile substitution are hobbling service revenue growth in both countries.

"In turn, the continued erosion of fixed voice revenues means companies cannot afford to grow capital spending," Lively said.

"Mobile revenue and capex, on the other hand, will continue to grow. The main drivers will be subscriber growth and the adoption of 3G services, which will offset price declines in basic mobile voice. "

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