Comparative analysis of chirped, AMI and DPSK modulation techniques in IS-OWC system

The work in this paper presents 64 Channel Inter-Satellite Optical Wireless Communication system using three Modulation methods. The advanced system has been achieved through Wavelength Division Multiplexing (WDM) by using optimized modulation methods like Chirped RZ, AMI and DPSK. The advanced system is composed and thus simulation is done at 10, 20 and 40 Gbps having range of 750 nm at different distances. The basic goal of the system is to provide good performance which has been achieved by high quality-factor and minimum BER. So eye diagrams have been presented at different bit rates. The comparative results show that at 10 and 20 Gbps, DPSK Modulation shows best performance. At 40 Gbps, AMI Modulation contains high Q-factor than Chirped and DPSK Modulation Techniques.