Khudair, R.M. and Mahdi, S.S. 2026. Optimized Design and Numerical Modeling of 850 nm Vertical-Cavity Surface-Emitting Laser (VCSEL). Ibn AL-Haitham Journal For Pure and Applied Sciences. 39, 2 (Apr. 2026), 82–91. DOI:https://doi.org/10.30526/39.2.4235.