“Theoretical Study of Effect of Carrier-Density-Dependent Internal Loss in the Optical Confinement Layer (OCL)on the Characteristic Temperature of Semiconductor – Quantum Dot (QD) Lasers ”. Journal of the College of Basic Education 15, no. 57 (December 20, 2022): 1–20. Accessed July 7, 2024. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/8344.