"Shanting Hu,Xiaodong Gu,Masanori Nakahama,Fumio Koyama","Non-mechanical beam scanner based on VCSEL integrated amplifier with resonant wavelength detuning design",,"CHINESE OPTICS LETTERS",,"Vol. 19","No. 12","pp. 121403-1-6",2021,Dec.
"Ruixiao Li,Shanting Hu,Xiaodong Gu,Fumio Koyama","Compact solid-state vertical-cavity-surface-emitting-laser beam scanning module with ultra-large field of view",,"Applied Physics ExpressLETTER",,"Vol. 14","No. 11","p. 112005-1-5 (2021)",2021,Nov.
"Hameeda R Ibrahim,Ahmed MA Hassan,Xiaodong Gu,Moustafa Ahmed,Fumio Koyama","Static and dynamic characteristics of double transverse coupled cavity VCSELs for high speed modulations",,"IEICE Electronics Express","The Institute of Electronics, Information and Communication Engineers","Vol. 18","No. 22","p. 20210419",2021,Nov.
"Liang Dong,Xiaodong Gu,Mikito Yoshiki,Fumio Koyama","Densely Integrated 1060nm 2D VCSEL Array for Space-division Multiplexing Toward Co-packaging Optics Transceivers","10th IEEE CPMT Symposium Japan, ICSJ2021",,,,,,2021,Nov.
"Ahmed M. A. Hassan,Xiaodong Gu,Masanori Nakahama,Satoshi Shinada,Moustafa Ahmed,Fumio Koyama","High-power operations of single-mode surface grating long oxide aperture VCSELs",,"Applied Physics Letters",,"  119, 191103-8 (2021)",,,2021,Nov.
"Ruixiao Li,Xiaodong Gu,Satoshi Shinada,Fumio Koyama","Ultra-compact VCSEL beam scanner with large field of view and its 2D beam scanning function","27th International Semiconductor Laser Conference",,,,,,2021,Oct.
"Ahmed Hassan,Xiaodong Gu,Masanori Nakahama,Satoshi Shinada,Mostafa Ahmed,Fumio Koyama","4 W Single-Mode Operation of Surface Grating VCSELs","2021 IEEE Photonics Conference",,,,,,2021,Oct.
"Fumio Koyama","VCSEL Photonics: Current State of the Art and Future Prospects","27th International Semiconductor Laser Conference, ISLC2021",,,"  MP1.1 (legend)",,,2021,Oct.
"Shanting Hu,Xiaodong Gu,Ahmed Hassan,Masanori Nakahama,Satoshi Shinada,Fumio Koyama","Surface Grating Loaded VCSEL-integrated Amplifier/Beam Scanner with Single Mode Output Power of over 3W and Scan Resolution of over 200","27th International Semiconductor Laser Conference, ISLC2021","WP2.2 (oral) Fig. 1 (a) Schematic structure, (b) Top view of a fabricated device; (c)",,"  WP2.2 (oral)",,,2021,Oct.
"Suguru Yamaoka,Nikolaos-Panteleimon Diamantopoulos,Hidetaka Nishi,Takuro Fujii,Koji Takeda,Tatsurou Hiraki,Takuma Tsurugaya,Shigeru Kanazawa,Hiromasa Tanobe,Takaaki Kakitsuka,Tai Tuchizawa,Fumio Koyama,Shinji Matsuo","100-GHz-class directly modulated membrane lasers on SiC substrate","27th International Semiconductor Laser Conference",,,"  MP2.8 (invited)",,,2021,Oct.
"Hameeda R Ibrahim,Ahmed M. A. Hassan,Xiaodong Gu,Satoshi Shinada,Moustafa Ahmed,Fumio Koyama","Low power consumption 1060 nm single-mode intracavity metal aperture VCSEL with transverse resonance","27th International Semiconductor Laser Conference",,,,,,2021,Oct.
"L. Dong,X. Gu,F. Koyama","Thermal crosstalk evaluation of 1.1 μm-band vertical cavity surface emitting laser array for multi core fiber transmission","26th MICROOPTICS CONFERENCE",,,"  PO-34",,,2021,Sept.
"K. Tanahashi,I. Fujioka,S. Hu,X. Gu,F. Koyama","Real-time LiDAR system using VCSEL-integrated amplifier/beam scanner","26th MICROOPTICS CONFERENCE",,,"  B-2",,,2021,Sept.
"Xiaodong Gu,Satoshi Shinada,Fumio Koyama","Compact 1D/2D VCSEL Beam Scanner with Enhanced Field of View and High Resolution","2021 European Conference on Optical Communication",,,"  Th1D.3",,,2021,Sept.
"H. R Ibrahim,Ahmed M. A. Hassan,Xiaodong Gu,Satoshi Shinada,M. Ahmed,F. Koyama","1060nm Single-mode Metal-aperture VCSEL Array with Transverse Resonance and Low Power Consumption below 50 fJ/bit","2021 European Conference on Optical Communication",,,"  Tu3D.5",,,2021,Sept.
"FUMIO KOYAMA","Recent progress of VCSEL Photonics and their applications","2021 European Conference on Optical Communication",,,"  We1D.1(Tutorial)",,,2021,Sept.
"Ruixiao Li,Xiaodong Gu,Fumio Koyama","Compact VCSEL beam scanner with large field of view and its 2D scanning function","The 82nd JSAP Autumn Meeting, 2021",,,"  10a-N405-6",,,2021,Sept.
"Chang Ge,Fumio Koyama","Modeling of Surface Grating-loaded VCSEL with Slowing Light","The 82nd JSAP Autumn Meeting, 2021",,,"  10a-N405-5",,,2021,Sept.
"C. Ge,F. Koyama","Modeling of surface grating-loaded VCSEL with slowing light","26th MICROOPTICS CONFERENCE",,,"  PO-45",,,2021,Sept.
"H. R. Ibrahim,A. M. A. Hassan,M. Ahmed,F. Koyama","Optical feedback tolerance of transverse coupled cavity VCSELs","26th MICROOPTICS CONFERENCE",,,"  PO-33",,,2021,Sept.
"Ahmed Mohamed Ahmed Hassan,X. Gu,M. Nakahama,M. Ahmed,F. Koyama","Record High Power Single-Mode Operations of Surface Grating VCSELs","The 82nd JSAP Autumn Meeting, 2021","第82回応用物理学会秋季学術講演会 講演予稿集","The Japan Society of Applied Physics","  10a-N405-7",,,2021,Sept.
"FUMIO KOYAMA","Transverse Coupled Cavity VCSEL Array for CPO Applications","OSA  Photonics in Switching and Computing",,,"  W1A.1",,,2021,Sept.
"SHANTING HU,XIAODONG GU,Ahmed Hassan,Masanori Nakahama,Satoshi Shinada,Fumio Koyama","Surface Grating Loaded VCSEL-integrated Amplifier/Beam Scanner with Quasi-Single Mode Output Power of over 4W","2021 IEICE Society Conference",,,"  C-3/4-43",,,2021,Sept.
"棚橋 和真,藤岡 威吹,Hu Shanting,Li Ruixiao,顧 暁冬,小山 二三夫","VCSELビーム増幅デバイスによるLiDARシステム検討?","2021年 第82回応用物理学会秋季学術講演会",,,"  11a-N102-6",,,2021,Sept.
"Hameeda Ibrahim,Ahmed Hassan,Gu Xiaodong,Satoshi Shinada,Moustafa Ahmed,Fumio Koyama","Record Low Power Consumption 1060nm Single-mode Intracavity Metal Aperture VCSEL with Transverse Resonance","The 82nd JSAP Autumn Meeting, 2021",,,"  10a-N405-9",,,2021,Sept.
"Liang Dong,Xiaodong Gu,Fumio Koyama","Thermal Crosstalk Evaluation of Densely Packed 1.1 (マイクロ)m-band VCSEL Array for Multi-core Fiber Transmission","The 82nd JSAP Autumn Meeting, 2021",,,"  10a-N405-8",,,2021,Sept.
"Ahmed M. A. Hassan,Xiaodong Gu,Masanori Nakahama,Satoshi Shinada,Moustafa Ahmed,Fumio Koyama","High power surface grating slow-light VCSEL",,"Appl. Phys. Express",,"Vol. 14","  092006","pp. 1-6",2021,Aug.
"小山二三夫","非機械式スキャニング ToF LiDAR のための面発光レーザフォトニクス","ACCEL光レーダー（LiDAR）シンポジウム",,,,,,2021,Aug.
"小山二三夫","高解像度VICSELビーム偏向器とそのLiDAR応用","第1回 産業応用ライダーセミナー",,,,,,2021,Aug.
"Shanting Hu,Fumio Koyama","Coupled mode analysis of high-speed transverse coupled cavity vertical-cavity surface-emitting laser for low frequency chirp operations",,"IEICE Electronics Express","The Institute of Electronics, Information and Communication Engineers","Vol. 18","No. 13","p. 20210239",2021,July
"FUMIO KOYAMA","High-power VCSEL beam scanners for 3D sensing","2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference",,,,,,2021,June
"Shanting Hu,Xiaodong Gu,Ahmed Hassan,Masanori Nakahama,Satoshi Shinad,Fumio Koyama","Record High PowerSingle-mode Operation and Beam Steering ofVCSEL-lntegrated Amplifier/Beam Scanner","Optical Fiber Communication Conference",,,"  M5A.3",,,2021,June
"Shanting Hu,Ahmed Hassan,Xiaodong Gu,Masanori Nakahama,Fumio Koyama","Surface Grating Loaded VCSEL with Single Mode Power of over 80 mW",,"IEICE Electronics Express",,"vol. 18","no. 11","p. 20210202",2021,June
"Ruixiao Li,Zeuku Ho,Xiaodong Gu,Satoshi Shinada,Fumio Koyama","Solid-state VCSEL beam scanner with ultra-large field of  view and high resolution","Optical Fiber Communication Conference 2021(OFC2021 Virtual)",,,"  W1D.3",,,2021,June
"Hameeda R Ibrahim,Ahmed Hassan,Xiaodong Gu,Satoshi Shinada,Moustafa Ahmed,Fumio Koyama","1060nm single-mode metal aperture VCSEL array with  transverse resonance for 5km single-mode fiber transmission","Optical Fiber Communication Conference 2021 (OFC2021 Vertual)",,,"  Tu5C.1",,,2021,June
"Shanting Hu,Xiaodong Gu,Ahmed Hassan,Masanori Nakahama,Satoshi Shinad,Fumio Koyama","Steering of VCSEL-Integrated Amplifier/Beam Scanner","Optical Fiber Communication Conference 2021(OFC2021 Virtual)",,,"  M5A.3",,,2021,June
"Shanting Hu,Ahmed Hassan,Xiaodong Gu,Masanori Nakahama,Satoshi Shinada,Fumio Koyama","Surface grating VCSEL-integrated amplifier/beam scanner with high power and single mode operation",,"Applied Physics Express",,"Vol. 14","No. 6","p. 062005_1-5",2021,May
"Shanting Hu,Xiaodong Gu,Ahmed Hassan,Masanori Nakahama,Fumio Koyama","Surface Grating VCSEL-Integrated Amplifier/Beam Scanner with High Power and Single Mode Operation","Conference on Lasers and Electro-Optics (CLEO2021)",,,"  SM1H.8",,,2021,May
"小山二三夫","自動運転向けLiDARの小型、軽量化技術と高精度センシング「LiDAR用VCSELの開発と3Dセンシング」","自動運転向けLiDARセミナー",,,,,,2021,May
"H. R Ibrahim,A. Hassan,M. Ahmed,X. Gu,F. Koyama","50Gbps Single Mode 1060nm Intracavity Metal Aperture VCSEL With Transverse Resonance","Conference on Lasers and Electro-Optics(CLEO 2021 Virtual)",,,"  SF2F.6",,,2021,May
"Ahmed M.A Hassan,Xiaodong Gu,Masanori Nakahama,Fumio Koyama,Satoshi Shinada,Moustafa Ahmed","High power and high beam quality surface grating VCSEL","Conference on Lasers and Electro-Optics(CLEO2021 virtual)",,,"  STh1G.5",,,2021,May
"FUMIO KOYAMA","VCSEL Photonics for Communications and Sensing","IEEE Electron Device Society Webinar",,,,,,2021,May
"冠者 駿助,志村 京亮,顧 暁冬,中濱 正統,小山 二三夫","表面回折格子を有する 2 電極波長可変面発光レーザ","第68回応用物理学会春季学術講演会 (2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","公益社団法人 応用物理学会","  19p-Z22-3",,,2021,Mar.
"Ahmed Mohamed Ahmed Hassan,Xiaodong Gu,Masanori Nakahama,Moustafa Ahmed,Fumio Koyama","High power surface grating long aperture VCSEL","第68回応用物理学会春季学術講演会(2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","The Japan Society of Applied Physics","  19p-Z22-2",,,2021,Mar.
"Ruixiao Li,Zeuku Ho,Xiaodong Gu,Fumio Koyama","Solid-State Beam Scanner with Large Field of View and Resolution Points of More than 1200","第68回応用物理学会春季学術講演会 (2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","The Japan Society of Applied Physics","  18a-Z18-2",,,2021,Mar.
"Hameeda Ibrahim,Ahmed M.A Hassan,Fumio Koyama","High-speed and Single mode 850nm Intracavity Metal Aperture VCSEL with Transverse Coupled Cavity Effect","第68回応用物理学会春季学術講演会 (2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","The Japan Society of Applied Physics","  19p-Z22-4",,,2021,Mar.
"Shanting Hu,Xiaodong Gu,Ahmed Mohamed Ahmed Hassan,Masanori Nakahama,Fumio Koyama","Surface Grating VCSEL-Integrated Amplifier/Beam Scanner with HighPower and Single Mode Operation","第68回応用物理学会春季学術講演会 (2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","The Japan Society of Applied Physics","  18a-Z18-1",,,2021,Mar.
"FUMIO KOYAMA","VCSEL-based Solid State LiDAR","Photonics West 2021",,,,,,2021,Mar.
"棚橋 和真,藤岡 威吹,許 在旭,顧 暁冬,小山 二三夫","VCSEL ビーム増幅デバイスによる LiDAR システム検討III","第68回応用物理学会春季学術講演会 (2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","公益社団法人 応用物理学会","  18a-Z10-9",,,2021,Mar.
"志村京亮,冠者駿助,許在旭,顧暁冬,中?正統,小山二三夫","850nm 帯分割電極波長可変光源集積ビーム偏向器","第68回応用物理学会春季学術講演会 (2021 オンライン開催)","第68回応用物理学会春季学術講演会 講演予稿集","公益社団法人 応用物理学会","  18a-Z10-7",,,2021,Mar.
"Nikolaos-Panteleimon Diamantopoulos,Hiroshi Yamazaki,Suguru Yamaoka,Munehiko Nagatani,Hidetaka Nishi,Hiromasa Tanobe,Ryo Nakao,Takuro Fujii,Koji Takeda,Takaaki Kakitsuka,Hitoshi Wakita,Minoru Ida,Hideyuki Nosaka,Fumio Koyama,Yutaka Miyamoto,Shinji Matsuo","> 100-GHz bandwidth directly-modulated lasers and adaptive entropy loading for energy-efficient> 300-Gbps/λ IM/DD systems",,"Journal of Lightwave Technology","IEEE","Vol. 39","Issue 3","pp. 771-778",2021,Feb.
"Suguru Yamaoka,Nikolaos-Panteleimon Diamantopoulos,Hidetaka Nishi,Ryo Nakao,Takuro Fujii,Koji Takeda,Tatsurou Hiraki,Takuma Tsurugaya,Shigeru Kanazawa,Hiromasa Tanobe,Takaaki Kakitsuka,Tai Tsuchizawa,Fumio Koyama,Shinji Matsuo","Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate",,"Nature Photonics",,"Vol. 15","Issue 1","pp. 28-35",2021,Jan.
"T. Kageyama,T. Miyamoto,S. Makino,F. Koyama,K. Iga","Optical quality improvement and blue-shift of GaInNAs/GaAs quantum well structures by thermal annealing",,"Compound Semiconductors 1998",,,,"pp. 639-644",2021,Jan.