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Data remodulation on downstream OFSK signal for upstream transmission in WDM passive optical network

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4 Author(s)
Ning Deng ; Dept. of Inf. Eng., Chinese Univ. of Hong Kong, China ; Chun-Kit Chan ; Lian-Kuan Chen ; Tong, F.

Employment of optical frequency shift keying (OFSK) as the downstream modulation format in a WDM passive optical network is proposed. The upstream OOK (on-off keying) transmitter at the ONU (optical network unit) can be realised by remodulating the constant-intensity downstream OFSK signal power with the upstream data. Transmission and remodulation of 2.5 Gbit/s downstream and upstream signals were successfully demonstrated.

Published in:

Electronics Letters  (Volume:39 ,  Issue: 24 )