Hafeez Younis, M., مروان, A. Ghafoor Abdullah, and عبدالغفور. “Effect of Laser Pulse Capacity (titanium-Blue Sapphire) on Propagation Properties in Photonic Crystal Fibers”. Journal of Education and Science (JES), vol. 25, no. 3, Sept. 2012, pp. 120-35, doi:10.33899/edusj.2012.59215.