"Moustafa Ahmed,Hameeda R Ibrahim,Fumio Koyama","Vertical]Cavity Surface]Emitting Lasers for Ultra]High Speed Photonics",,"International Journal of Nanoelectronics and Materials",,"Volume 11","No. 2","pp. 211]220",2018,Mar.
"Ibrahim Hameeda Ragab,FUMIO KOYAMA,Moustafa Ahmed Hafez","Large Signal Modulation Analysis of High-speed Double Transverse Coupled Cavity VCSELs","The 24th General Congress of the International Commission for Optics",,,"  Tu1J-06",,,2017,Aug.