Australian incumbent Telstra has successfully tested out 1Tbps optical transmission on a 995km link between Sydney and Melbourne using equipment from Ericsson. Ericsson said the test showed that 1Tbps technology can be deployed in a real network environment.
Last month, Ericsson announced at Mobile World Congress that it had signed a deal to upgrade the capacity on Telstra’s long-haul optical networks to support 100Gbps services. Ericsson will provide Telstra with the SPO 1400, its latest packet optical transport platform (POTP) for the metro, and the MHL 3000 for long-haul applications with 100Gbps service support. The trial tested a 1Tbps line card in the MHL 3000 platform.
“The trial has proven that our existing optical cable plant can support terabit channels along with 40Gbps and 100Gbps channels simultaneously on the same fibre, verifying that we have the ability to increase capacity on our existing fiber cables when required,” said Alessandro Pane, head of Ericsson R&D optical transmission.
The underlying technology was developed at Italy’s National Inter-University Consortium for Telecommunications, CNIT. Although details are being kept under wraps, the equipment relies on a higher degree of photonic integration, according to lead researcher Luca Poti. He says the partners are working on improvements that they hope will see the transmission speed increased to 2Tbps by the end of the year.
By Pauline Rigby