Technologies and ProductsFacebook is to start laying 275 miles of high-capacity fibre cable through West Virginia to connect its data centres in Ashburn, Virginia and Columbus, Ohio. In addition to improving Facebook’s network operations, the new fibre link will help local communities by providing broadband access from excess bandwidth. Facebook subsidiary Middle Mile Infrastructure is expected to […]
Technologies and ProductsAlcatel Submarine Networks and Facebook innovation aims at lower cost submarine systems Alcatel Submarine Networks (ASN) has announced the commercial availability of aluminium conductor cable for optical fibre submarine systems. This follows an extensive testing and qualification programme to demonstrate aluminium’s suitability for ultra-long haul deep sea transmission systems. The programme included mechanical, electrical, optical […]
Applications and ResearchAcacia Communications has announced the first 400G single carrier DWDM transmission on the 6,600 km Marea submarine cable between Virginia Beach, USA, and Bilbao, Spain. The field demonstration was conducted by Acacia in collaboration with Microsoft and Facebook, and helped to demonstrate that improvements in capacity and spectral efficiency can enable increased utilisation of deployed […]
Applications and ResearchNokia and Facebook have set new spectral efficiency and capacity records in multiple submarine field trials over a 5,500 km submarine cable between New York and Ireland. The submarine field trial of Nokia Bell Labs’ new Probabilistic Constellation Shaping (PCS) technology used shaped 64-QAM, which achieved a record spectral efficiency of 7.46 bits/s/Hz and increased […]
Technologies and ProductsToday’s high-speed wired communication networks use lasers to carry information through optical fibers, but wireless networks are currently based on radio frequencies or microwaves. In an advance that could make light-based wireless communications ubiquitous, researchers from Facebook, Inc.’s Connectivity Lab have demonstrated a new approach for detecting optical communication signals travelling through the air. The […]