Australian engineers optimise existing cable for ultra-high speed broadband
Researchers from Monash and Sydney Universities have released a paper on the invention of an energy-efficient method of increasing the data capacity of optical networks up to 10 Tb/s.
The method uses reprogrammed commercial components (wavelength selective switches) to work with data encoding technology that makes more efficient use of the available data channels in optical fibre. This would optimise the efficiency of existing optical fibre networks that connect towns and cities and could dramatically boost the overall performance of networks like the National Broadband Network while reducing costs.
The researchers claimed they transmitted a signal of 10Tb/s (or approximately 1,000,000Mb/s) over a distance of more than 850 km. As a comparison, ADSL 2+ (current broadband) speeds are commonly around 6Mb/s.
The research was conducted by Prof Arthur Lowery and Dr Liang Du of the Monash Department of Electrical and Computer Systems Engineering in collaboration with Dr Jochen Schroeder, Joel Carpenter and Prof Ben Eggleton at the University of Sydney, through the Centre of Excellence for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS).
Their findings were presented at the Optical Fiber Communications (OFC) conference in California last week, and the breakthrough was considered important enough that OFC accepted the submission after the deadline for presentations had closed.
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