"H.R. Ibrahim,M. Ahmed,F. Koyama","High speed modulation single mode 850 nm DTCC-VCSEL","High speed modulation single mode 850 nm DTCC-VCSEL",,,"  G-2",,,2019,Nov.
"Ahmed Mohamed Ahmed Hassan,Moustafa Ahmed,Masanori Nakahama,FUMIO KOYAMA","High power, high speed pulse generation of VCSEL amplifier","The 80th JSAP Autumn  Meeting, 2019","第80回応用物理学会秋季学術講演会 講演予稿集",,"  20a-E302-7",,,2019,Sept.
"H.R. Ibrahim,MS Alghamdi,A Bakry,M. Ahmed,F. Koyama","Modelling and characterisation of the noise characteristics of the vertical cavity surface-emitting lasers subject to slow light feedback",,"Pramana",,"Volume 93","number 73",,2019,Aug.
"Ahmed Mohamed Ahmed Hassan,M. Nakahama,F. Koyama","High peak power pulsed operations of VCSEL amplifier","The 66th JSAP Spring Meeting 2019",,,"  9p-W331-1",,,2019,Mar.