"Babu Dayal,Fumio Koyama","A Review on Polarization Control of Vertical-Cavity Surface-Emitting Semiconductor Lasers",,"Recent Patents on Electrical Engineering,",,"vol. 4","no. 2","pp. 81-97",2011,May
"FUMIO KOYAMA,Padullaparthi Babu Dayal,Akihiro Imamura,Takahiro Sakaguchi,Akihiro Matsutani","Multiple-Wavelength GaInAs/GaAs VCSELs with Grading a Spacer Layer for Short Reach WDM Applications","IPRM2009","2009 International Conference on Indium Phosphide and Related Materials",,"  Tu B2-6",,"pp. 182-184",2009,May
"BABU DAYAL,今村 明博,坂口 孝浩,松谷 晃宏,小山 二三夫","波長制御層によるGaInAs/GaAs多波長面発光レーザアレイの製作",,"第56回応用物理学関係連合講演会",,,"  1p-G-13","p. 1199",2009,Mar.
"P. Babu Dayal,Jun Nakajima,Takahiro Sakaguchi,Akihiro Matsutani,Fumio Koyama","Multiple-wavelength VCSEL arrays using surface nano-machining process for WDM applications","21st Annual Meeting of The IEEE Lasers & Electro-Optics Society, LEOS2008","21st Annual Meeting of The IEEE Lasers & Electro-Optics Society, LEOS2008",,,"  TuEE4","pp. 400-401",2008,Nov.
"Ayumi Fuchida,P. Babu Dayal,Takahiro Sakaguchi,Akihiro Matsutani,Fumio Koyama","Low Polarization Dependence of Bragg Reflector Slow Light Waveguides","21st Annual Meeting of The IEEE Lasers & Electro-Optics Society, LEOS2008",,,,"  WN5","pp. 525-526",2008,Nov.
"淵田 歩,P. Babu Dayal,坂口 孝浩,松谷 晃宏,小山 二三夫","スローライト光導波路における挿入損失の偏光依存性",,"2008年度電子情報通信学会通信ソサイエティ大会",,,"  C-3-27","p. 149",2008,Sept.
"淵田 歩,P. Babu Dayal,坂口 孝浩,黒木 圭介,松谷 晃宏,小山 二三夫","スローライトを利用した小型光ゲート素子の検討",,"第69回応用物理学会学術講演会",,,"  5p-ZN-5","p. 1062",2008,Sept.
"P. Babu Dayal,Fumio Koyama","Polarization behavior of 0.85?m VCSELs integrated with gold nanorods using 3DFDTD simulations",,"The 55th Spring Meeting of JSAP",,,"  30a-ZQ-3",,2008,Mar.
"P. Babu Dayal,Fumio Koyama","Multiple wavelength VCSEL arrays with grading a spacer layer",,"The 55th Spring Meeting of JSAP",,,"  30a-ZQ-6",,2008,Mar.
"Babu dayal P.,Fumio Koyama","Polarization Control of VCSELs using Gold Nanorod Array",,"OPE2007",,,,"pp. 35-40",2007,Apr.
"P. Babu Dayal,Jiro hashizume,Fumio Koyama","Polarization control of 0.85 μm GaAs VCSELs using Au-Sio2 nanostructures",,"Photonics 2006",,,"  ThD2",,2006,Dec.
"Wiganes Janto,Koichi Hasebe,Nobuhiko Nishiyama,Catherine Caneau,Takahiro Sakaguchi,Akihiro Matsutani,P. Babu Dayal,Fumio Koyama,Chung-En Zah","Athermal operation of 1.55 μm InP-based VCSEL with thermally-actuated cantilever structure","20th International Semiconductor Laser Conference","20th International Semiconductor Laser Conference",,,"  PD1.1",,2006,Sept.
"P. Babu Dayal,川嶋貴之,北林直人,宮本智之,小山二三夫,川上彰二郎","自己クローニングフォトニック結晶を用いた1.15µm単一モード面発光レーザの偏光制御","第67回応用物理学会学術講演会",,,,,,2006,Sept.