"Hideaki Yamakawa,Takahiro Sakaguchi,Moustafa Ahmed,Ahmed Bakry,Fumio Koyama","Spatial-mode multiplexer/demultiplexer based on tapered hollow waveguide with lateral optical confinement",,"Japanese Journal of Applied Physics",,"Vol. 54",,"pp. 120302-1-3",2015,Dec.
"Shanting Hu,Fumio Koyama","High-speed and low chirp operations of transverse-coupled-cavity VCSELs","Technical Committee on Lasers and Quantum Electronics (LQE2015)",,,"Vol. 115","no. 378","pp. 5-8",2015,Dec.
"Shanting Hu,Fumio Koyama","Coupled mode analysis of High-speed Transverse Coupled Cavity VCSEL","20th Microoptics Conference 2015, MOC 2015",,,"  J5",,"pp. 26-29",2015,Oct.
"Hameeda Ragab Ibrahim,Moustafa Ahmed,Fumio Koyama","Influence of slow-light feedback on noise properties of VCSEL with a transverse coupled cavity","20th Microoptics Conference 2015, MOC 2015",,,"  H3",,"pp. 26-28",2015,Oct.
"Shunya Inoue,Akihiro Matsutani,Hideo Ohtsuki,Takahiro Miyashita,Fumio Koyama","Dual beam single-mode vertical cavity surface emitting lasers using high-index contrast grating","20th Microoptics Conference 2015, MOC 2015",,,"  B5",,"pp. 26-27",2015,Oct.
"Masanori Nakahama,Xiaodong Gu,Takahiro Sakaguchi,Akihiro Matsutani,Fumio Koyama","Sub-gigahertz beam switching with transverse-mode coupled cavity VCSELs","20th Microoptics Conference 2015",,,"  J2",,"pp. 280-281",2015,Oct.
"小山俊泰,顧暁冬,松谷晃宏,坂口孝浩,小山二三夫","ビーム掃引／波長選択スイッチのための1.5μm帯Si/SiO2ブラッグ反射鏡導波路","2015年電子情報通信学会ソサイエティ大会",,,"  C-3-15",,,2015,Sept.
"Hiroyuki Mori,Xiaodong Gu,Akihiro Matsutani,Fumio Koyama","2次元ビーム掃引のためのスローライト分岐・ビーム掃引素子","2015年電子情報通信学会ソサイエティ大会",,,"  C-3-16",,,2015,Sept.
"Xiaodong Gu,Masanori Nakahama,Akihiro Matsutani,Fumio Koyama","First Demonstration of 850 nm Transverse Coupled Cavity Vertical Cavity Surface-Emitting Laser","The 76th JSAP Autumn Meeting 2015",,,"  16a-2E-9",,,2015,Sept.
"中?正統,顧暁冬,坂口孝浩,松谷晃宏,小山二三夫","横方向複合共振器面発光レーザによる高速ビームスイッチング動作","応用物理学会2015年秋季学術講演会",,,"  16a-2E-8",,,2015,Sept.
"Xiaodong Gu,Masanori Nakahama,Akihiro Matsutani,Fumio Koyama","Over 30 GHz Modulation of 850 nm Transverse Coupled Cavity Vertical-Cavity Surface-Emitting Laser","41st European Conference and Exhibition on Optical Communication, ECOC 2015",,,"  ID: 0803",,,2015,Sept.
"井上俊也,松谷晃宏,小山二三夫","サブ波長格子を用いたデュアルビーム面発光レーザーの作製","2015年電子情報通信学会ソサイエティ大会",,,"  C-4-10",,,2015,Sept.
"中?正統,坂口孝浩,松谷晃宏,小山二三夫","アサーマル波長可変面発光レーザ","2015年電子情報通信学会ソサイエティ大会",,,"  C-4-8",,,2015,Sept.
"FUMIO KOYAMA","Beam Engineering in VCSEL Photonics","International Nano-Optoelectronics Workshop",,,"  TuC1",,"pp. 30-31",2015,Aug.
"Masanori Nakahama,Xiaodong Gu,Takahiro Sakaguchi,Akihiro Matsutani,Moustafa Ahmed,Ahmed Bakry,Fumio Koyama","Sub-gigahertz beam switching of vertical-cavity surface-emitting laser with transverse coupled cavity",,"Applied Physics Letters",,"Vol. 107","No. 7","pp. 071105-1-4",2015,Aug.
"Kenji Tanabe,Xiaodong Gu,Akihiro Matsutani,Fumio Koyama","Vortex Beam Emitter Laterally Integrated with Vertical Cavity Surface Emitting Laser","The 11th Conference on Lasers and Electro-Optics Rim",,,"  27J2-5",,,2015,Aug.
"Masanori Nakahama,Takahiro Sakaguchi,Akihiro Matsutani,Fumio Koyama","Precise Wavelength Tuning of MEMS VCSELs enabling 110-ch Operations","The 11th Conference on Lasers and Electro-Optics Rim",,,"  26J3-5",,,2015,Aug.
"Shanting Hu,Fumio Koyama","Chirp Reduction and High-speed Operation Utilizing Lateral Optical Feedback of Coupled Cavity VCSEL","International Nano-Optoelectronics Workshop",,,,,,2015,Aug.
"Xiaodong Gu,Fumio Koyama","60-channel Wavelength Selective Switch on Bragg Reflector Waveguides Array with 182 Output-ports","International Nano-Optoelectronics Workshop",,,"  ThP20",,"pp. 157-158",2015,Aug.
"Hameeda R. Ibrahim,Moustafa Ahmed,Fumio Koyama","Modeling of Dynamics and Intensity Noise of Transverse Coupled Cavity VCSELs","International Nano-Optoelectronics Workshop",,,"  TuP15",,"pp. 60-61",2015,Aug.
"Shunya Inoue,Akihiro Matsutani,Hideo Ohtsuki,Takahiro Miyashita,Fumio Koyama","Beam engineering of VCSELs using High-index Contrast sub-wavelength Grating","International Nano-Optoelectronics Workshop",,,"  ThP7",,"pp. 131-132",2015,Aug.
"Masanori Nakahama,Xiaodong Gu,Takahiro Sakaguchi,Akihiro Matsutani,Fumio Koyama","Transverse-mode Coupled cavity VCSELs with High Speed Beam Switching","International Nano-Optoelectronics Workshop",,,"  ThP1",,"pp. 119-120",2015,Aug.
"Shanting Hu,Moustafa Ahmed,Ahmed Bakry,Fumio Koyama","Low chirp and high-speed operation of transverse coupled cavity VCSEL",,"Japanese Journal of Applied Physics",,"vol. 54","no. 9","pp. 090304-1-4",2015,Aug.
"Masanori Nakahama,Hiroki Kobayashi,Takahiro Sakaguchi,Akihiro Matsutani,Fumio Koyama","Transverse-mode Control of Transverse-coupled Cavity VCSELs using Vernier Effect for Boosting Single-mode Power","Compound Semiconductor Week 2015, CSW2015",,,"  Tu405.4",,"pp. 346-347",2015,July
"小山 二三夫","面発光レーザーの最近の進展ー高速変調と機能集積ー",,"レーザー研究 2015年7月","一般社団法人 レーザー学会","Vol. 43","No. 7","pp. 425-429",2015,July
"Shanting Hu,Fumio Koyama","Chirp Reduction and Modulation Bandwidth Enhancement of Transverse Coupled Cavity VCSEL","The 20th Opto Electronics and Communications Conference, OECC2015",,,"  JWeC.14",,,2015,July
"中? 正統,坂口 孝浩,松谷 晃宏,小山 二三夫","マイクロマシン構造を用いた面発光レーザーの波長制御と波長温度無依存化",,"レーザー研究 2015年７月","一般社団時法人 レーザー学会","Vol. 43","No. 7","pp. 458-462",2015,July
"Xiaodong Gu,Masanori Nakahama,Akihiro Matsutani,Moustafa Ahmed,Ahmed Bakry,Fumio Koyama","850nm transverse-coupled-cavity vertical-cavity surface-emitting laser with direct modulation bandwidth of over 30GHz",,"Applied Physics Express",,"vol. 8","no. 8","pp. 82702-1-4",2015,July
"FUMIO KOYAMA","Tunable Light Sources for Next Generation Access Networks","Technical Committee on Lasers and Quantum Electronics (LQE2015)","IEICE Technical Report",,,,,2015,June
"Moustafa Ahmed,Ahmed Bakry,Mohamed S. Alghamdi,Hamed Dalir,Fumio Koyama","Enhancing the modulation bandwidth of VCSELs to the millimeter-waveband using strong transverse slow-light feedback",,"OPTICS EXPRESS",,"Vol. 23","No. 12","pp. 15365-15371",2015,June
"Akihiro Matsutani,FUMIO KOYAMA","Dry etching of SiC using Ar/F2 plasma and XeF2 plasma",,"Japanese Journal of Applied Physics",,"vol. 54",,"p. 06GB01",2015,May
"Hiroki Taniguchi,Hamed Dalir,Fumio Koyama","High-speed Directly Modulated Laterally-coupled Twin Stripe Lasers for Optical Interconnects","Conference on Lasers and Electro-Optics 2015, CLEO2015",,,"  JTh2A.47",,,2015,May
"Kenji Tanabe,Xiaodong Gu,Akihiro Matsutani,Fumio Koyama","Compact Vortex Beam Emitter Laterally Integrated with VCSEL Array","Conference on Lasers and Electro-Optics 2015, CLEO2015",,,"  SW1F.2",,,2015,May
"Moustafa Ahmed,Ahmed Bakry,Hamed Dalir,Fumio Koyama","Application of Strong Slow-Light Feedback to Boost the Modulation Bandwidth of VCSELs Beyond 70 GHz","Conference on Lasers and Electro-Optics 2015, CLEO2015",,,"  SM3F.6",,,2015,May
"Hamed Dalir,Fumio Koyama","Millimeter-wave Modulation of 850 nm VCSELs for Radio over Fiber Applications","Conference on Lasers and Electro-Optics 2015, CLEO2015",,,"  SF1I.7",,,2015,May
"Xiaodong Gu,Kenya Suzuki,Yuichiro Ikuma,Kazunori Seno,Hiromasa Tanobe,Akihiro Matsutani,Fumio Koyama","Compact Wavelength Selective Switch Using a Bragg Reflector Waveguide Array with Ultra-Large Number (>100) of Output-Ports",,"Journal of Lightwave Technology",,"vol. 33","no. 7","pp. 1358-1364",2015,Apr.
"Hamed Dalir,Akihiro Matsutani,Fumio Koyama","Ultra-compact and High-speed Electro-absorption Modulator Integrated VCSEL","2015 IEICE General Conference",,,"  C-4-6",,,2015,Mar.
"Fumio Koyama","VCSEL Photonics and their applications","2015IEICE General Conference",,,"  CI-3-3",,,2015,Mar.
"森裕之,顧暁冬,小山二三夫","スローライト導波路フェーズドアレイを用いた二次元ビーム掃引の検討","2015年第62回応用物理学会春季学術講演会",,,"  11a-A13-4",,"pp. 04?032",2015,Mar.
"Fumio Koyama","Energy Efficient Tunable Light Sources for Next Generation Flexible Access Networks","Optical Fiber Communication Conference 2015",,,"  W1J.4",,,2015,Mar.
"Ying-Yu Lai,Shunya Inoue,Tien-Chang Lu,Shing-Chung Wang,Fumio Koyama","Fabrication of SiC Membrane High Contrast Grating Using Nanoimprint Lithography","The62nd JSAP Spring Meeting 2015",,,"  12a-A17-11",,,2015,Mar.
"Shanting Hu,Fumio Koyama","Chirp Reduction Along with Modulation Bandwidth Enhancement Utilizing Coupled Cavity VCSEL","The62nd JSAP Spring Meeting 2015",,,"  12a-A17-14",,,2015,Mar.
"中?正統,小林拓貴,丸山彰,松谷晃宏,小山 二三夫","横方向複合共振器面発光レーザのVernier 効果による横モード制御","2015年第62回応用物理学会春季学術講演会",,,"  12a-A17-12",,,2015,Mar.
"菊池麻子,松谷晃宏,小山二三夫","面発光レーザ集積フォトニクスのための混晶化を用いた面内バンドギャップ制御","2015 年電子情報通信学会総合大会",,,"  C-4-7",,,2015,Mar.
"田辺賢司,顧 暁冬,松谷晃宏,小山二三夫","VCSELとの横方向集積によるVortexビームアレイ","2015年電子情報通信学会総合大会",,,"  C-4-10",,,2015,Mar.
"谷口寛樹,Dalir Hamed,坂口孝浩,小山二三夫","横方向結合共振を用いた端面発光型レーザの高速化の検討II","2015年電子情報通信学会総合大会",,,"  C-4-8",,,2015,Mar.
"Ying-Yu Lai,Akihiro Matsutani,Tien-Chang Lu,Shing-Chung Wang,Fumio Koyama","Fabrication of SiC Membrane HCG Blue Reflector Using Nanoimprint Lithography","Photonics West2015",,,"  9372?6",,,2015,Feb.
"FUMIO KOYAMA","Virtually Image Phased Array based on Bragg Reflector Waveguide for Large-port Optical Switching","Photonics West2015",,,"  9372?13",,,2015,Feb.
"Moustafa Ahmed,Ahmed Bakry,Fumio Koyama","Application of Strong Optical Feedback to Enhance the Modulation Bandwidth of Semiconductor Lasers to the Millimeter-Wave Band",,"International Science Index 2015",,"Vol. 9","No. 1","pp. 17-22",2015,Jan.
"Xiaodong Gu,Fumio Koyama","Ultra-large port-count wavelength selective switch based on a Bragg reflector waveguides array","レーザー学会学術講演会第 35 回年次大会",,,"  12a?03",,,2015,Jan.
"Fumio Koyama,Masanori Nakahama","Micromachined Vertical Cavity Surface Emitting Lasers - Athermalization, Tuning and Multi-wavelength Integration -",,"IEEE Journal of Selected Topics in Quantum Electronics",,"vol. 21","no. 4","  1700310",2015,Jan.