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Directly modulated 1.55 μm AM-VSB video EDFA-repeatered supertrunking system over 110 km standard singlemode fibre using split-band and wavelength division multiplexing techniques

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3 Author(s)
Y. K. Chen ; Dept. of Electro-Opt. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan ; Y. L. Liu ; C. C. Lee

A directly modulated 1.55 μm 77-channel AM-VSB video lightwave EDFA-repeatered long-distance transmission system that uses split-band and wavelength division multiplexing techniques is demonstrated for the first time. A high system performance CNR=48 dB is achieved with CSO/CTB values >71/60 dB over a conventional singlemode fibre of 110 km. Sophisticated external modulators, SBS-suppression, differential detection, and/or dispersion compensating methods are not required. This technique is suitable for analogue CATV long-span supertrunking applications

Published in:

Electronics Letters  (Volume:33 ,  Issue: 16 )