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The authors have analysed and designed a five-channel (one AM-VSB and four 2.5 Gbit/s baseband digital) hybrid WDM system, with cascaded in-line EDFAs for high capacity video trunking applications. Simultaneous transmission of high quality AM-VSB signals with CNR > 50.5 dB and four 2.5 Gbit/s digital channels with negligible power penalty over 105 km of standard singlemode fibre is demonstrated.
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Dai et al. (1997) studied this question.
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