Proceedings PaperMonomode Optical Transmission Experiments
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Ultra low loss monomode fibre in the 1.3µm to 1.6µm wavelength range offers the possibility of achieving very long repeater section lengths for high speed digital communication systems. Experiments have been performed over 32 and 62km of monomode fibre cable installed in BT duct at 140 and 650Mbit/s using a semiconductor laser at the fibre's minimum dispersion wavelength of 1.3um. Unrepeatered transmission of 140Mbit/s over 102km of monomode fibre and 90.6km of cabled fibre has been achieved at 1.52um using semiconductor lasers; the spectral width being controlled by injection locking and external cavity techniques.