Phase encoded spread in time signals for suppression of propagation non-linearities in 40 Gb/s CDM/WDM communications systems using optical phase conjugation for dispersion compensation |
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| Authors: | Rosas-Fernandez JB Penty RV White IH |
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| Institution: | 1. Department of Engineering, Centre for Photonic Communication Systems Research, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, England, United Kingdom
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| Abstract: | The non-linear degradation along a RZ-WDM 40 Gb/s transmission link is shown to be reduced when a spectral direct sequence bipolar phase shift keying (DS/BPSK) encoding format is used. Standard single mode fibre transmission links are studied which use optical phase conjugation for dispersion compensation in the encoded system. For a WDM system with 100 GHz channel spacing, an improvement of 6 dB is found in the link output power margin at a distance of 300 km after five amplification stages. |
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