PRASHANTDEEP SINGH SITAL,VIJAYA YADUVANSHI

Free space optical (FSO) communication stands as a cutting-edge wireless technology facilitating data exchange via precisely directed beams of light. Its utilization of unlicensed optical wavelengths grants ample bandwidth capacity while ensuring immunity to electromagnetic interference, addressing EMI/EMC concerns effectively. FSO’s deployment establishes secure communication channels with minimal latency, leveraging Earth’s atmosphere as a transmission medium. However, its availability can be hindered by local weather conditions like rain, fog, snow, and wind. This study focuses on assessing modulation techniques—RZ, NRZ, CSRZ, PPM, and QPSK—and their per_x0002_formance, particularly in terms of the Q-factor. The evaluation accounts for variations in distance, bit rates, and input laser power, employing eye diagrams for a thorough analysis of their efficacy.

https://doi.org/10.58357/jedcs.2024.v3.i2.17