To authenticate the identity and distribute the private keys of users based on the stream media cryptographic ...
LIAO Wei LIU Gang HOU Bin ZHANG Ru (School of Sciences, Beijing University of Posts and Telecommunications, Beijing 100876, China) (School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China)
The theoretical and experimental analyses of widening the differential group delay (DGD) dynamic range of degree of polarization(DOP)-based polarization mode dispersion monitor using a band-pass filter are presented. The experiment shows that the maximum DGD monitoring range is widened up to ~6ps using band-pass filter. At the same time, DOP sensitivity has a little change. The experimental results are in accordance with the numerical ones.
The degree of polarization (DOP) ellipsoid can be used as either feedback or feedforward signal for automatic polarization mode dispersion compensation. We have realized the experiment for obtaining DOP ellipsoid from 100 sampling data of output states of polarization using particle swarm optimization (PSO) as ellipsoid data fitting algorithm. It was shown that the PSO algorithm was powerful for ellipsoid data fitting with high precision within 250 ms.
