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The developments of novel transmission fibers, to realize future high capacity transmission, are introduced. Three directions are considered to realize novel transmission fibers.
Large-Aeff (LA) HFs with Aeff of 150 μm2 were designed and fabricated. Advantages of using HFs were demonstrated by comparing microbending loss with conventional step-index fibers. We also numerically optimized dispersion compensating HFs to achieve new dispersion managed transmission lines.
Microstructured optical fibers (MOFs) with air holes within the structure, such as hole-assisted fibers (HAFs) and holey fibers (HFs), having unique dispersion properties in short-wavelength bands, have captured considerable attention recently thanks to their wide range of practical applications. In particular, supercontinuum (SC) source, which is generated by interplay between many different nonlinear...
Novel holey fibers with 7 cores and ultra wide transmission bandwidth over 500-1700 nm have been developed. By optimizing the core intervals, the transmission capability more than 100 km can be realized.
Multi-core holey fibers for the ultra large capacity transmission were investigated numerically and experimentally. Each core can realize the ultra wide band transmission over 550-1700 nm.
Holey fibers suitable for wide band transmission system were numerically studied. By taking the relation between the macro bending loss and the confinement loss into account, the usable transmission band have been clarified.
We present a novel and simple method of producing small core silica holey fibres with nonlinearity close to the maximum achievable. An effective area of 1.6 mum2 with a loss of 0.18 dB/m at 1.55 mum were achieved.
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