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Mode division multiplexed(MDM) in few mode fibers has got attraction due to its potential to achieve ultra-high capacity beyond the nonlinear Shannon limit of the single mode fiber. However, the effect of dispersion, mode coupling and differential group delay on optical signals cannot be ignored, thus equalizing these impairments are required in MDM system. In this paper, a partitioned modified frequency...
Interference in free space OAM multiplexing system is mainly caused by atmospheric turbulence, which can cause the energy of the OAM beam to diffuse to adjacent beams to introduce crosstalk. We demonstrate the mitigation of crosstalk in a free space OAM multiplexing system based on ICA algorithm. The results show that the required OSNR at BER of 3.8×10−3 is reduced by 3dB with ICA algorithm.
Mode division multiplexed(MDM) in few mode fibers has gained attraction due to its potential to achieve ultrahigh capacity beyond the nonlinear Shannon limit of the single mode fiber. However, it cannot be ignored that the effect of crosstalk, mode coupling and differential mode group delay on optical signals exists in transmission and equalizing these impairments are required in the digital signal...
Twice real-valued FastICA (TR-FastICA) algorithm is proposed in this paper to eliminate crosstalk between the two polarization multiplexed complex-valued higher-order quadrature modulation format such as QPSK signals induced by polarization mode coupling with polarization mode dispersion (PMD) and polarization dependent loss (PDL) for the coherent optical polarization division multiplexing (CO-PDM)...
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