Signal strength in FSO communication channels based on directly measured modulated laser with dual drive Mach–Zehnder modulators (MZMs) measured

Abstract The work clarified directly measured modulated laser with dual drive measured Mach–Zehnder modulators for signal strength in free space optics (FSO) channel. Peak power after free space communication channel at various propagation distances is measured in the optical time domain. As well as the signal level amplitude quality and data error rates after light detector at various propagation distances are also measured in the time bit period. The directly measured modulated laser with dual drive measured Mach–Zehnder modulators for signal strength in FSO communication channels is stimulated with optisystem program version 13. Peak signal power after free space communication channel at various propagation distances is measured in the optical time domain. The optimum peak signal power is achieved at 10 km distance with a value of 4.328 W. The signal level amplitude quality and data error rates after light detector at various propagation distances are also measured in the time bit period. The optimum Q level and BER level are clarified at 10 km distance with the values of 23.1164 for signal quality and 1.439 × 10−118 for minimum data error rates.