Over the past several years, cable operators have seen their networks transform into the premier platform for transmission of data services, both for residential and business customers. In order to accommodate the growth of services and transmission speeds, the networks have been divided into smaller and smaller clusters of customers forming independent service groups.
Fibre Systems Summer 2018
Ana Pesovic discusses the three core elements required in creating a smart city
For centuries, humanity has looked for new ways to build smarter cities; ways that improve city operations, grow the economy and create a better place for people to work and live. From the aqueducts in Rome to the more recent technology innovations that help simplify the challenges of urban life, cities are, and have been, getting smarter throughout history.
The global optical communications industry is currently experiencing a surge in demand for fibre to the premises (FTTP) in order to achieve the faster broadband speeds required for the evolving needs of the consumer, who is no longer content to wait before watching the latest episode of their favourite box set.
When Hurricane Sandy battered the eastern seaboard of the United States in 2012, a storm surge caused catastrophic flooding of Verizon’s central office (CO) in Broad Street, Manhattan. Miles of underground copper cables were ruined by the water. Even worse, paper insulation in the wiring sucked water deeper into the network through capillary action, destroying cables in otherwise dry areas. Verizon found that it was too difficult, expensive and time-consuming to rescue the existing copper network, so decided to rewire with optical fibre cables instead.
As network speeds have exploded through 100G and 200G to beyond 400G to cope with increased bandwidth requirements, network operators are increasingly focusing on automation – typically via software defined networking (SDN) or network function virtualisation (NFV) – to increase service velocity and remove cost and errors from their networks. However, one layer – the physical layer has stubbornly resisted the move to software definition or automation.
Unbeknown to most people, the erbium-doped fibre amplifier (EDFA) is a superhero that keeps the world talking and communicating. But almost three decades after its invention, it is struggling to do the job alone.
As data demand ramps ever higher, researchers are looking to innovative amplifier designs to help transport a broader light spectrum through optical fibres, finds Andy Extance
Duncan Ellis shares his views about the increased focus on automation from network operators, and how the physical layer has so far stubbornly resisted the move
Switching off copper networks where fibre has been deployed is the end game, so why are so few operators doing it, wonders Pauline Rigby
With demand for fibre to the premises increasing, Keely Portway looks at the role training plays in ensuring installation skills remain available to meet this growing demand