Toward 1.8 Tb/s CAP Schemes for Short Reach Optical Communication Systems

Abstract

Wavelength-division multiplexed (WDM)carrierless amplitude/phase (CAP) modulation is proposed for1.8 Tb/sfor short reach optical communication system. The system uses 16 channels, each operates at 112 Gb/s. A single-band (SB) CAP and multiband (MB) CAP are adopted for each channel as advanced modulation format with high spectral efficiency. The system performance at C and O operating bandsare investigated withchannel spacing of 100 GHz.The system is simulated using OptiSystem14.0 software package and the results reveal that the maximum allowable distance at BER of 〖10〗^(-3) is 3.45km and 2.11 km for SB-CAP and MB-CAP operating at C-band with 0 dB laser power, respectively. These values to be compared with 4.5 km and 1.8 km, respectively, for O-band operation.