Bandwidth Density Analysis of Coded Free-Space Optical Interconnects

The performance of free-space optical interconnects (FSOIs) system is significantly influenced by noise, similar to any wireless communication system. This noise has a notable impact on both the bandwidth density and data rate FSOIs To address these challenges, this study proposes utilization vertical-cavity-surface-emitting laser (VCSEL) arrays transmitter side photodetector receiver for FSOIs. investigates with without coding while maintaining specific bit error rate. An analysis conducted in presence higher-order modes beams fundamental Gaussian operating mode. leads degradation terms density. In addition, we examine signal-to-noise ratio (SNR) system’s each considered provided simulation results clearly demonstrate that enhances systems, extent improvement being closely tied employed code codeword length.