Performance improvement analysis by dispersion and non-linearity compensation for OOFDM transmission

This paper introduces a joint equalizer compensating chromatic dispersion, nonlinearity with reduced complexity and improved performance for Optical orthogonal frequency multiplexing (OOFDM) transmission. It presents performance comparison for M-ary Quadrature amplitude modulation (QAM) by varying M to 16 and 64. Simulated results with dispersion and nonlinearity compensation achieve bit error rate (BER) of 10
^-9
at 21 dB SNR for 16-QAM-OOFDM transmission, at 23 dB SNR for 64-QAM-OOFDM transmission. Proposed equalizer reports improvement in signal to noise ratio (SNR) by approximately 11.5 dB in comparison to conventional results.