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A simple square 64-QAM generation technique using a commercially available dual-drive IQ modulator driven by 4-level and binary electrical signals is proposed. Polarization multiplexed (PM) 64-QAM signals at 20Gbaud/s are experimentally demonstrated.
A simple square or hexagonal 16-QAM generation technique using a commercially available dual drive IQ modulator driven by 4 binary signals is proposed. Square or hexagonal polarization multiplexed (PM) 16-QAM signals at 25Gbaud/s are experimentally demonstrated.
By combining XGM, and cascaded FWM effects in an SOA, seven multicast channels with 100-GHz spacing are demonstrated using single pump laser source. The power penalty of these multicast channels is less than 3.3 dB.
In this paper, we propose and demonstrate the practical all-optical wavelength multicasting scheme based on the four-wave mixing (FWM) effect in both a highly nonlinear fiber (HNLF) and a semiconductor optical amplifier (SOA). Then we carry out comprehensive comparisons of the performance differences between using the HNLF and SOA for this proposed multicasting scheme. Seven multicast channels are...
We experimentally demonstrate the feasibility and dynamic switching performance of a 448 ?? 448 AWGR-based OXC with nanoseconds switching speed. To our knowledge, such a port-count is unprecedented for such switches.
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