Figure 11. Eye diagrams for different pulse profiles (Gaussian, Super-Gaussian, Sech, Lorentzian). The eye openings indicate transmission quality and robustness to noise. The Sech profile shows a wider and clearer eye diagram, confirming its superior transmission performance

From

Evaluation of Pulse Shapes on the Reception Performance of an FSO-WDM-PolSK System

Amadou Soumahoro, Douatia Koné, Aladji Kamagaté

International Journal of Physics. 2025, 13(4), 80-90 doi:10.12691/ijp-13-4-1