Nokia Bell Labs


Harnessing the nonlinear communication regime

Between the covers of optical communication research journals, heated arguments have been waged, leading to ‘a stand-up row, almost’, according to Professor Polina Bayvel from University College London. The disagreements centre on whether optical fibres exhibit a ‘nonlinear Shannon limit’ to their capacity. The dispute emerges from a question that challenges the whole industry. Is the future of fibre-optic technology already facing a fundamental, impenetrable, nonlinearity obstacle? It’s a theoretical question with potentially huge practical implications.


Six months after it became mandatory for copper and fibre cables supplied to EU/EEA member states to comply with the Construction Product Regulation and carry CE marking, Keely Portway asks what, if any, effect this has had on cable suppliers


To continue growing data traffic, optical scientists are tackling tough questions about nonlinear effects in optical fibre, discovers Andy Extance 


January of this year saw Jerry Rawls step down as chief executive of Finisar, a company he had grown from obscurity to worldwide success. He talks to Rebecca Pool about building his empire, the firm’s new CEO and a future that could include Oclaro*