Hussein, Zainab Ali, and Abdul- Kareem Mahdi Salih. 2024. “A Theoretical Study of the Output Coupler Reflectivity Effect on the Characteristics of Er+3 Laser Pulse at Passively Q-Switching”. Edelweiss Applied Science and Technology 8 (6):4089-4100. https://doi.org/10.55214/25768484.v8i6.2899.