Friday, 22 May 2015

Flexibility is better

Novel hollow core optical fibers are not based anymore on the conceptual rigidity of its ancestors: not only a periodicity is not required, but also the size and shape of the anti-resonant elements within the fibre structure can be modified. This new flexibility can open the way to new and exciting optical properties: hollow fibres with very wide transmission bandwidth, with very high birefringence, with controlled modal shape, with controlled dispersion, with ultra-low attenuation, with enhanced gas sensing properties and so on. Opposed to structural rigidity, the design flexibility of these new optical fibers appears to be the key to access novel or better use of this fibre technology.