ADVA, in partnership with Acacia Communications has successfully completed a trial to transport 300Gb/s of data per wavelength over a 6,800km fibre link. The link is typical of a cost-optimised submarine cable using 300Gb/s channels and a commercially available transponder with real-time digital signal processing (DSP).
The demonstration also achieved what the company calls the ‘highest spectral efficiency’ for such a link carrying 300Gb/s per wavelength with 70GHz channel spacing. The trial network featured ADVA’s open and vendor-neutral FSP 3000 TeraFlex technology, which delivers 36 bi-directional 100Gb/s Ethernet services in a 1RU chassis and can transport up to 600Gb/s on a single wavelength. It maximises the transmission capacity for a given fibre link, from access networks to links spanning submarine distances and is completely open and programmable.
Sorin Tibuleac, director, system architecture, R&D at ADVA explained: ‘We’ve already shown that our FSP 3000 TeraFlex supports the growing bandwidth needs of metro DCI infrastructure with successful 600Gbit/s trials. Now we’re proving what it can do over the world’s longest links. What makes this trial so significant is that it leverages a commercially available solution that can be configured to achieve the highest capacity on any distance from inter-data centre connections to inter-continental links. To accomplish that over a fibre cable with trans-Atlantic reach is a truly unique achievement.'
Added Christian Rasmussen, founder and VP, digital signal processing and optics, Acacia Communications: ‘Triggered by increasing demand for data driven by cloud-based services, we’re seeing a significant expansion in long-haul and subsea cable networks. This trial broadens the horizons of what can be achieved over great distance in terms of capacity and modulation flexibility. We believe this trial gives a major boost not only to long-haul and submarine network operators but also to cloud-content and digital media providers looking for ways to cost-efficiently deliver more to their customers around the globe.’
ADVA also recently partnered with the Telecom Infra Project (TIP) to support its Disaggregated Cell Site Gateway (DCSG) group.