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40 Gbit/s soliton transmission is achieved in a recirculating loop over 10 000 km, for the first time to the authors' knowledge, with a single carrier wavelength. Propagation has been tested with and without polarisation multiplexing thanks to low polarisation dependency electroabsorption modulators for in-line control and for the time demultiplexing receiver.
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Aubin et al. (1996) studied this question.
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