M. A. Mahdi, “Effect of Strained Quantum Wells of Enhanced Performance for Quantum Well Lasers in Direct Modulation”, NUCEJ, vol. 14, no. 1, pp. 80–87, Mar. 2011, Accessed: Mar. 19, 2026. [Online]. Available: http://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/604