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We propose and numerically simulate a 2×2 Digital Optical Switch (DOS) based on silicon-on-insulator (SOI) adiabatic coupler for TE polarizations at 1550nm. The simulation results acquired by Beam-Propagation-Method (BPM) reveal that the cross-talk (CT) levels are below −27dB over a broadband of 60nm. Small simulated insertion-losses (ILs) below 0.1dB are obtained between the wavelengths 1520nm to...
In order to solve the problem existing in the P2P network, the author issue a new method to monitor the P2P shared resource network. This solution can handle the problem that is hard to monitor anonymous P2P resource index servers. At the same time, the article also presents how to disturb the illegal data in the P2P network, and discuss the efficiency.
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