@book{CTT100444837,
  author = {T. Sakaguchi and T. Honda and A. Katsube and F. Koyama and K. Iga},
  title = {MgO/SiO<sub>2</sub> dielectric multilayer reflectors formed by electron-beam evaporation for GaN surface emitting semiconductor lasers},
  publisher = {Processing Topical Nitride Workshops},
  year = 1997,
}

@article{CTT100761298,
  author = {Shunya Inoue and Shun Nishimura and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {High-speed wavelength switching of tunable MEMS vertical cavity surface emitting laser by ringing suppression},
  journal = {Japanese Journal of Applied Physics},
  year = 2018,
}

@article{CTT100701092,
  author = {Hideaki Yamakawa and Takahiro Sakaguchi and Moustafa Ahmed and Ahmed Bakry and Fumio Koyama},
  title = {Spatial-mode multiplexer/demultiplexer based on tapered hollow waveguide with lateral optical confinement},
  journal = {Japanese Journal of Applied Physics},
  year = 2015,
}

@article{CTT100695863,
  author = {Masanori Nakahama and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and Moustafa Ahmed and Ahmed Bakry and Fumio Koyama},
  title = {Sub-gigahertz beam switching of vertical-cavity surface-emitting laser with transverse coupled cavity},
  journal = {Applied Physics Letters},
  year = 2015,
}

@article{CTT100694082,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and FUMIO KOYAMA},
  title = {Athermal and Tunable Operation of VCSELs with Micromachined Structure},
  journal = {レーザー研究 2015年７月},
  year = 2015,
}

@article{CTT100677468,
  author = {Masanori Nakahama and Takahiro Sakaguchi and akihiro matsutani and Fumio Koyama},
  title = {Athermalization and on-chip multi-wavelength integration of VCSELs employing thermally actuated micromachined mirrors},
  journal = {Applied Physics Letters(APL)},
  year = 2014,
}

@article{CTT100684994,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Athermal and widely tunable VCSEL with bimorph micromachined mirror},
  journal = {Optics Express},
  year = 2014,
}

@article{CTT100666932,
  author = {Masanori Nakahama and Hayato Sano and Shunya Inoue and Takahiro Sakaguchi and Akihiro Matsutani and Moustafa Ahmed and Ahmed Bakry and Fumio Koyama},
  title = {Wavelength tuning and controlled temperature dependence in vertical-cavity surface-emitting lasers with a thermally and electrostatically actuated cantilever structure},
  journal = {Jpn. J. Appl. Phys.},
  year = 2013,
}

@article{CTT100664019,
  author = {Masanori Nakahama and Hayato Sano and Shunya Inoue and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Tuning Characteristics of Monolithic MEMS VCSELs with Oxide Anti-reflection Layer},
  journal = {IEEE Photonics Technology letters},
  year = 2013,
}

@article{CTT100648445,
  author = {Hideaki Yamakawa and Takahiro Sakaguchi and Fumio Koyama},
  title = {Mode Selectivity and Athermal Operation for Hollow Waveguide DBR Lasers},
  journal = {THE IEICE TRANSACTIONS ON ELECTRONICS (JAPANESE EDITON)},
  year = 2013,
}

@article{CTT100589317,
  author = {Padullaparthi Babu Dayal and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Multiple-Wavelength Vertical-Cavity Surface-Emitting Lasers by Grading a Spacer Layer for Short-Reach Wavelength Division Multiplexing Applications},
  journal = {Appl. Phys. Exp.},
  year = 2009,
}

@article{CTT100586484,
  author = {Xiaoxue Zhao and Koich Hasebe and Takahiro Sakaguchi and Fumio Koyama and Connie J. Chang-Hasnain and Nobuhiko Nishiyama and Catherine Canueau and Chung-En Zah},
  title = {Tunable optical equalizer using diffraction grating filters},
  journal = {IEEE Photon. Technol. Lett},
  year = 2008,
}

@article{CTT100875840,
  author = {Koichi Hasebe and XiaoUe Zhao and Takahiro Sakaguchi and Fumio Koyama and Connie Chang-Hasnain and Nobuhiko Nishiyama and Cathrine Caneau and Chung-en Zah},
  title = {Bandwidth Enhancement with Tunable Optical Equalizer for High Speed Intensity Modulation},
  journal = {2008 Conference on Lasers and Electro-Optics & Quantum Electronics and Laser Science Conference, Vols 1-9},
  year = 2008,
}

@article{CTT100554698,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {Sub-harmonic mode-locking of VCSEL with a concave external mirror},
  journal = {IEICE Electronics Express},
  year = 2008,
}

@article{CTT100508465,
  author = {Yasuki Sakurai and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Tunable Planar Air-Core Resonator Based on Tunable Hollow Waveguide},
  journal = {Jpn. J. Appl. Phys},
  year = 2006,
}

@article{CTT100507279,
  author = {Takeshi Uchida and Tomoyuki Miyamoto and Takahiro Sakaguchi and Fumio Koyama},
  title = {Transverse mode control in long monolithic-cavity VCSELs with temperature-profile control},
  journal = {Electron. Lett.},
  year = 2006,
}

@article{CTT100408148,
  author = {Yasuki Sakurai and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Giant Bragg wavelength tuning of tunable hollow waveguide Bragg reflector},
  journal = {Jpn. J. Appl. Phys.},
  year = 2005,
}

@article{CTT100491002,
  author = {三浦 達 and 田中 寿知 and 坂口 孝浩},
  title = {Fabrication of hollow waveguide and it's application to photonic integrated},
  journal = {THE INSTITUTE ELECTRONICS},
  year = 2003,
}

@article{CTT100691920,
  author = {Takahiro Sakaguchi and Fumio Koyama and Kenichi Iga},
  title = {Fabrication and characterization of vertical micro-cavity structures for GaN surface emitting lasers},
  journal = {Journal of the Japanese Association for Crystal Growth},
  year = 2002,
}

@article{CTT100458426,
  author = {吉田 司 and 内田 慶彦 and 坂口 孝浩 and 宮本 智之 and 小山 二三夫 and 伊賀 健一},
  title = {Characteristic of InGaN/GaN QW microcavity formed by removing with UV light for blue VCSLs},
  journal = {Extended Abstracts (The 62th Autumn Meeting) of Jpn. Soc. Appl. Phys.},
  year = 2001,
}

@article{CTT100538226,
  author = {Ayako Murakami and Shigeaki Sekiguchi and Takahiro Sakaguchi and Tomoyuki Miyamoto and Fumio Koyama and Kenichi Iga},
  title = {Proposal of optically pumped tunable surface emitting laser},
  journal = {Jpn. J. Appl. Phys.},
  year = 2001,
}

@article{CTT100458440,
  author = {坂口 孝浩 and 伊賀 健一},
  title = {The basic technology reclamation of Vertical Cavities for GaN Surface Emitting Laser},
  journal = {The 24th Research on Short-Wavelength Semiconductor Optoelectronic Devices for Ultra High-Density and Ultra High-Speed Information Processing},
  year = 2001,
}

@article{CTT100446147,
  author = {Y. Uchida and T. Sakaguchi and T. Yoshida and F. Koyama and K. Iga},
  title = {Photo-pumped GaInN/GaAlN QW Vertical Cavity Structure},
  journal = {2000 Japan-Korea Joint Workshop Short-Wavelength Semiconductor Optoelectronics Devices and Materials},
  year = 2000,
}

@article{CTT100446143,
  author = {Y. Moriguchi and T. Miyamoto and T. Sakaguchi and M. Iwata and Y. Uchida and F. Koyama and K. Iga},
  title = {GaN polycrystal light grownth on silica substrate by metalorganic vapor phase epitaxy (MOVPE)},
  journal = {Proceedings of the 3nd International Symposium on Blue Laser and Light Emitting Diodes},
  year = 2000,
}

@article{CTT100458425,
  author = {森口 雄一郎 and 宮本 智之 and 坂口 孝浩 and 岩田 雅年 and 内田 慶彦 and 小山 二三夫 and 伊賀 健一},
  title = {GaN-based Crystal Growth on SiO2 substrate by MOVPE (III) -Growth of Hetero-Structure-},
  journal = {Extended Abstracts (The 47th Spring Meeting) of Jpn. Soc. Appl. Phys.},
  year = 2000,
}

@article{CTT100446146,
  author = {Y. Moriguchi and T. Miyamoto and T. Sakaguchi and M. Iwata and Y. Uchida and F. Koyama and K. Iga},
  title = {GaN polycrystal light emtter grown silica substrate by metalorganic vapor phase epitaxy (MOVPE)},
  journal = {International Symposium on Ultra-Parallel Optoelectronics},
  year = 2000,
}

@article{CTT100444864,
  author = {Fumio Koyama and Dietmar Schlenker and Tomoyuki Miyamoto and Zhibiao Chen and Akihiro Matsutani and Takahiro Sakaguchi and Kenichi Iga},
  title = {Data transmission over single-mode fiber by using 1.2 μm uncooled GaInAs-GaAs laser for Gbit/s local area network},
  journal = {IEEE Photon. Technol. Lett.},
  year = 2000,
}

@article{CTT100476927,
  author = {FUMIO KOYAMA and Dietmar Schlenker and Tomoyuki Miyamoto and Zhibiao Chen and Akihiro Matsutani and Takahiro Sakaguchi and Kenichi Iga},
  title = {1.2μm highly strained GaInAs/GaAs quantum well lasers for singlemode fibre datalink},
  journal = {Electron. Lett.},
  year = 1999,
}

@article{CTT100444835,
  author = {坂口 孝浩 and 井上 彰 and 伊賀 健一},
  title = {GaN系面発光レーザ用共振器構造に関する検討と製作},
  journal = {短波長光デバイス第162委員会第14回研究会},
  year = 1999,
}

@article{CTT100444862,
  author = {T. Honda and H. Kawanishi and T. Sakaguchi and F. Koyama and K. Iga},
  title = {Characteristic Temperature Estimation for GaN-Based Lasers},
  journal = {MRS Internet J. Nitride Semicond. Res.},
  year = 1999,
}

@article{CTT100608587,
  author = {T. Honda and A. Inoue and M. Mori and T. Shirasawa and N. Mochida and K. Saotome and T. Sakaguchi and A. Ohtomo and M. Kawasaki and H. Koinuma and F. Koyama and K. Iga},
  title = {GaN growth on ozonized sapphire(0001) substrates by MOVPE},
  journal = {J. Crystal Growth},
  year = 1998,
}

@article{CTT100444861,
  author = {T. Honda and A. Inoue and M. Mori and T. Shirasawa and N. Mochida and K. Saotome and T. Sakaguchi and A. Ohtomo and M. Kawasaki and H. Koinuma and F. Koyama and K. Iga},
  title = {GaN growth on ozonized sapphire (0001) substrates by MOVPE},
  journal = {Journal of Crystal Growth},
  year = 1998,
}

@article{CTT100444860,
  author = {N. Mochida and T. Honda and T. Shirasawa and A. Inoue and T. Sakaguchi and Fumio Koyama and K. Iga},
  title = {Crystal Orientation Dependence of p-type Contact Resisitance of GaN},
  journal = {Journal of Crystal Growth},
  year = 1998,
}

@article{CTT100444859,
  author = {T. Honda and T. Miyamoto and T. Sakaguchi and H. Kawanishi and F. Koyama and K. Iga},
  title = {Effect of piezo electric field on emission characteristics GaN/AlGaN quantum wells},
  journal = {Journal of Crystal Growth},
  year = 1998,
}

@article{CTT100444858,
  author = {T. Shirasawa and T. Honda and N. Mochida and A. Inoue and T. Sakaguchi and Fumio Koyama and K. Iga},
  title = {Interface Control of GaN/AlGaN Quantum Well Structures in MOVPE Growth},
  journal = {Journal of Crystal Growth},
  year = 1998,
}

@article{CTT100444830,
  author = {坂口 孝浩 and 井上 彰 and 岩田 雅年 and 森口 雄一郎 and 内田 慶彦 and 小山 二三夫 and 伊賀 健一},
  title = {横成長によるGaN系面発光レーザーの検討},
  journal = {秋季第59回応用物理学会学術講演会},
  year = 1998,
}

@article{CTT100444831,
  author = {坂口 孝浩 and 白澤 智恵 and 持田 宜晃 and 井上 彰 and 岩田 雅年 and 本田 徹 and 小山 二三夫 and 伊賀 健一},
  title = {GaN系面発光レーザー用共振器構造の製作},
  journal = {秋季第59回応用物理学会学術講演会},
  year = 1998,
}

@article{CTT100444856,
  author = {本田 徹 and 白澤 智恵 and 持田 宜晃 and 井上 彰 and 松谷 晃宏 and 坂口 孝浩 and 小山 二三夫 and 川西 英雄 and 伊賀 健一},
  title = {GaN系面発光レーザの設計と製作技術に関する基礎検討},
  journal = {電子通信学会論文誌},
  year = 1998,
}

@article{CTT100444857,
  author = {N. Hatori and A. Mizutani and N. Nishiyama and A. Matsutani and T. Sakaguchi and F. Motomura and F. Koyama and K. Iga},
  title = {An over 10Gbits/s transmission experiment using p-type d-doped InGaAs/GaAs quantum-well vertical cavity surface emitting Laser},
  journal = {Photon. Tech. Lett.},
  year = 1998,
}

@article{CTT100444834,
  author = {坂口 孝浩 and 小山 二三夫 and 伊賀 健一},
  title = {GaN系面発光レーザ用反射鏡の設計と形成技術},
  journal = {短波長光デバイス第162委員会第9回研究会},
  year = 1997,
}

@article{CTT100444854,
  author = {T. Honda and T. Sakaguchi and F. Koyama and K. Iga and H. Munekata and Kukimoto},
  title = {Design and Fabrication of ZnSe-Based Blue/Green Surface Emitter Lasers},
  journal = {Journal of Crrystal Growth},
  year = 1996,
}

@article{CTT100444819,
  author = {T. Honda and A. Katsube and T. Sakaguchi and F. Koyama and K. Iga},
  title = {Design of GaN-Based Surface Emitting Laser with Low Threshold Operation},
  journal = {Paper presennted at Silicon Carbide and Related Materials 1995 Conf.},
  year = 1995,
}

@article{CTT100486237,
  author = {T. Sakaguchi and T. Honda and A. Katsube and F. Koyama and K. Iga},
  title = {MgO/SiO<sub>2</sub> Dielectric Multilayer Reflectors for GaN-based Ultra-violet Surface Emitting Lasers},
  journal = {LEOS'95 Annual Metting Conference Proceedings},
  year = 1995,
}

@article{CTT100486236,
  author = {T. Sakaguchi and T. Honda and A. Katsube and F. Koyama and K. Iga},
  title = {MgO/SiO<sub>2</sub> Dielectric Multilayer Reflectors Formed By Electron-Beam Evaporation for Surface Emitting Lasers},
  journal = {Topical Workshop on III-V Nitrieds},
  year = 1995,
}

@article{CTT100486235,
  author = {坂口 孝浩 and 本田 徹 and 勝部 敦史 and 小山 二三夫 and 伊賀 健一},
  title = {Electron-Beam Evaporation of Dielectric Multi-layer Reflectors for GaN Surface Emitting Lasers.},
  journal = {Extended Abstracts (The 42nd Spring Meeting) of Jpn. Soc. Appl. Phys.},
  year = 1995,
}

@article{CTT100444827,
  author = {T. Honda and T. Sakaguchi and F. Koyama and K. Iga and K. Yanashima and K. Inoue and H. Munekata and Kukimoto},
  title = {Optically Pumped ZnSe-Based Vertical Cavity Surface Emitter with SiO<sub>2</sub>/TiO<sub>2</sub> Multilayer Reflector},
  journal = {Jpn. J. Appl. Phys.},
  year = 1995,
}

@article{CTT100444820,
  author = {T. Honda and A. Katsube and T. Sakaguchi and F. Koyama and K. Iga},
  title = {Threshold Estimation of GaN-based Surface Emitting Lasers Operting in Ultraviolet Spectral Region},
  journal = {Jpn. J. Appl. Phys.},
  year = 1995,
}

@article{CTT100486234,
  author = {坂口 孝浩 and 本田 徹 and 勝部 敦史 and 小山 二三夫 and 伊賀 健一},
  title = {Design of Multilayer Reflectors for GaN Surface Emitting Lasers},
  journal = {Fall Nat'l Conv. Rec. IEICE of Jpn.},
  year = 1994,
}

@article{CTT100486186,
  author = {坂口 孝浩 and 内田 貴司 and 小山 二三夫 and 伊賀 健一},
  title = {A Semiconductor/Dielectric Hybrid Mirror for Surface Emitting Lasers},
  journal = {電子情報通信学会秋季大会},
  year = 1992,
}

@article{CTT100486187,
  author = {K. Moriki and Y. Ohnishi and H. Katoh and T. Inoue and T. Sakaguchi and T.  Hattori and K. Iga},
  title = {GaAlAs/GaAs Optical Beam Scanner Using Phased Array Waveguides},
  journal = {Jpn. J. Appl. Phys.},
  year = 1992,
}

@article{CTT100536615,
  author = {Takahiro Sakaguchi and FUMIO KOYAMA and KENICHI IGA},
  title = {Design and Fabrication of a Surface Emitting Laser Using Semiconductor Distributed Bragg Reflectors},
  journal = {Published in Proceeding the Review of Laser Engineering},
  year = 1990,
}

@article{CTT100592021,
  author = {Takahiro  Sakaguchi and M. Oshikiri and Fumio Koyama and Kenichi Iga},
  title = {TiO/SiO dielectric multilayer reflector for surface emitting semiconductor lasers},
  journal = {Proc. MRS Int'l MeetinG.n Advanced Materials},
  year = 1988,
}

@article{CTT100536768,
  author = {Takahiro Sakaguchi and Fumio Koyama and Kenichi Iga},
  title = {Vertical cavity surface emitting laser with AlGaAs/AlAs Bragg reflector},
  journal = {Electronics Letter},
  year = 1988,
}

@article{CTT100444828,
  author = {Fumio Koyama and Hiroyuki Uenohara and Takahiro Sakaguchi and Kenichi Iga},
  title = {GaAlAs/GaAs MOCVD growth for Surface Emitting Laser},
  journal = {Jpn. J. Appl. Phys.},
  year = 1987,
}

@article{CTT100536682,
  author = {Susumu Kinoshita and Takahiro Sakaguchi and Tetsushi Odagawa and Kenichi Iga},
  title = {GaAlAs/GaAs Surface Emitting Laser with High Reflective TiO2/SiO2 Multilayer Bragg Reflector},
  journal = {Jpn. J. Appl. Phys.},
  year = 1987,
}

@article{CTT100537659,
  author = {Susumu Kinoshita and Takahiro Kobayashi and Takahiro Sakaguchi and Tetsushi Odagawa and Kenichi Iga},
  title = {Room temperature pulse operation of GaAs surface emitting laser by using TiO2/SiO2 dielectric multilayer reflector},
  journal = {電子通信学会論文誌},
  year = 1986,
}

@inproceedings{CTT100830494,
  author = {Hiroki OTA and Toshihiro ASAHI and Gu XIAODONG and T. Sakaguchi and F. Koyama},
  title = {Integrated devices of MEMS VCSEL and DBR beam deflector},
  booktitle = {},
  year = 2019,
}

@inproceedings{CTT100830504,
  author = {Keisuke Shimura and Masashi Takanohashi and Zeuku Ho and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and FUMIO KOYAMA},
  title = {980nm-band Beam Scanner Integrated with Heater-driven VCSEL},
  booktitle = {第80回応用物理学会秋季学術講演会 講演予稿集 (2019 北海道大学 札幌キャンパス)},
  year = 2019,
}

@inproceedings{CTT100831027,
  author = {Hiroki Ota and Xiaodong Gu and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {Integrated devices of MEM VCSEL and VCSEL beam deflector},
  booktitle = {第80回応用物理学会秋季学術講演会 講演予稿集},
  year = 2019,
}

@inproceedings{CTT100831025,
  author = {Masashi Takanohashi and Keisuke Shimura and Xiaodong Gu and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {Lateral coupling integration of VCSEL and beam scanner with controlled cutoffwavelength structure},
  booktitle = {第80回応用物理学会秋季学術講演会 講演予稿集},
  year = 2019,
}

@inproceedings{CTT100798253,
  author = {Toshihiro Asahi and Xiaodong Gu and Takahiro Sakaguchi and Fumio Koyama},
  title = {Beam deflection characteristics of MEMS VCSEL integrated DBR waveguide scanner},
  booktitle = {},
  year = 2019,
}

@inproceedings{CTT100798249,
  author = {Masashi Takanohashi and Keisuke Shimura and Xiaodong Gu and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Lateral coupling integration of VCSEL and VCSEL amplifier with cutoff structure},
  booktitle = {},
  year = 2019,
}

@inproceedings{CTT100798248,
  author = {Keisuke Shimura and Masashi Takanohashi and Zeuku Ho and Xiaodong Gu and Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Beam Scanner Integrated Single-mode VCSEL with Cut-off Wavelength Detuning},
  booktitle = {},
  year = 2019,
}

@inproceedings{CTT100799888,
  author = {Ryosuke Togashi and Xiaodong Gu and Takahiro Sakaguchi and Fumio Koyama},
  title = {Full C-band Wavelength Demultiplexer with Optical Gain for Use in Wavelength Selective Switch},
  booktitle = {},
  year = 2019,
}

@inproceedings{CTT100798254,
  author = {Ryosuke Togashi and Xiaodong Gu and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {InP VCSEL Demultiplexer with Loss Compensation in Full C-band},
  booktitle = {},
  year = 2019,
}

@inproceedings{CTT100793931,
  author = {Xiaodong Gu and Ryosuke Togashi and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {First Demonstration of C-band Wavelength Demultiplexer Based on a Bragg Reflector Waveguide Amplifier Using InP Material},
  booktitle = {},
  year = 2018,
}

@inproceedings{CTT100793926,
  author = {Keisuke Shimura and Masashi Takanohashi and Zeuku Ho and Xiaodong Gu and Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and FUMIO KOYAMA},
  title = {Beam Scanner Integrated VCSEL with Cut-off Wavelength Detuning},
  booktitle = {},
  year = 2018,
}

@inproceedings{CTT100793927,
  author = {Masashi Takanohashi and Keisuke Shimura and Xiaodong Gu and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {High efficient lateral coupling integration of VCSEL and slow-light amplifier},
  booktitle = {},
  year = 2018,
}

@inproceedings{CTT100772048,
  author = {Ryosuke Togashi and Xiaodong Gu and Akihiro Matsutani and Takahiro Sakaguchi and Junichi Shimizu and FUMIO KOYAMA},
  title = {1.5μm band slow light demultiplexer based on InP Bragg reflector waveguide},
  booktitle = {},
  year = 2018,
}

@inproceedings{CTT100766555,
  author = {Shunya Inoue and Toshihiro Asahi and Shun Nishimura and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {Fabrication of slow-light beam scanner integrated with a MEMS VCSEL},
  booktitle = {},
  year = 2018,
}

@inproceedings{CTT100758993,
  author = {Shunya Inoue and Shun Nishimura and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Ringing Suppression of MEMS VCSEL by Optimizing Applied Voltage Wave Form},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100843943,
  author = {Shun Nishimura and Masanori Nakahama and Shunya Inoue and Akihiro Matsutani and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {機械的共振を用いた波長可変マイクロマシン面発光レーザの広帯域掃引・低駆動電圧動作},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100759025,
  author = {Shun Nishimura and Masanori Nakahama and Shunya Inoue and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Wide Wavelength Sweep & Low Voltage Operation of Tunable MEMSVCSEL Employing Mechanical Resonance},
  booktitle = {OPE2017-55,LQE2017-28(2017-08)},
  year = 2017,
}

@inproceedings{CTT100759018,
  author = {Ryosuke Togashi and Takuma Ikeda and Xiaodong Gu and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {1.5μm band slow light demultiplexer based on InP Bragg reflector waveguide},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100758994,
  author = {Shun Nishimura and Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and FUMIO KOYAMA},
  title = {High speed wavelength tuning of MEMS VCSEL},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100749246,
  author = {Masanori Nakahama and Shunya Inoue and Shun Nishimura and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Sub-volt Wavelength Sweep Operation Of MEMS VCSEL Employing High-Q Mechanical Resonanc},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100741263,
  author = {Shun Nishimura and Xiaodohg Gu and Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {High speed electro-thermal wavelength tuning of 1060nm VCSEL},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100741261,
  author = {Masanori Nakahama and Shunya Inoue and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Wide Wavelength Sweep & Low Voltage Operation of MEMS Tunable VCSEL Employing Mechanical Resonance},
  booktitle = {},
  year = 2017,
}

@inproceedings{CTT100734671,
  author = {Masanori Nakahama and Xiaodong Gu and Akihiro Matsutani and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {Amplification characteristics of VCSEL-Based High Resolution Wavelength Demultiplexer},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100734650,
  author = {Masanori Nakahama and Xiaodong Gu and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {VCSEL-Based High Resolution Wavelength Demultiplexer with Large Optical Gain},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100734672,
  author = {Shunya Inoue and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and FUMIO KOYAMA},
  title = {Fabrication of HCG MEMS VCSELs and characterization for athermal operation},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100726834,
  author = {Shunya Inoue and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Consideration and Fabrication of athermal HCG MEMS VCSEL},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100726829,
  author = {Shunya Inoue and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Fabrication of HCG MEMS VCSELs using nanoimprint lithography and consideration of athermal operation},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100726827,
  author = {Masanori Nakahama and Xiaodong Gu and Akihiro Matsutan and Takahiro Sakaguchi and Fumio Koyama},
  title = {Slow Light VCSEL Amplifier for High-resolution Beam Steering and High-power Operations},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100703914,
  author = {Masanori Nakahama and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Amplification characteristics of the slow light SOA for boosting single-mode power of VCSEL},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100703921,
  author = {Shunya Inoue and Masanori Nakahama and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Fabrication of Athermal HCG MEMS tunable VCSEL},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100703918,
  author = {Masanori Nakahama and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {High-power Solid State Beam Scanner based on VCSEL Structure},
  booktitle = {},
  year = 2016,
}

@inproceedings{CTT100698296,
  author = {Masanori Nakahama and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Sub-gigahertz beam switching with transverse-mode coupled cavity VCSELs},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100697065,
  author = {Masanori Nakahama and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Transverse-mode coupled cavity VCSELs with high speed beam switching},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100696487,
  author = {Toshihiro Oyama and Xiaodong Gu and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {1.5μm band Si/SiO2 Bragg reflector waveguide for beam steering / wavelength selective switch},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100696490,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Athermal and tunable vertical cavity surface emitting lasers},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100695347,
  author = {Masanori Nakahama and Xiaodong Gu and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Transverse-mode Coupled cavity VCSELs with High Speed Beam Switching},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100695853,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Precise Wavelength Tuning of MEMS VCSELs enabling 110-ch Operations},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100694083,
  author = {Masanori Nakahama and Hiroki Kobayashi and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Transverse-mode Control of Transverse-coupled Cavity VCSELs using Vernier Effect for Boosting Single-mode Power},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100683706,
  author = {Hiroki Taniguchi and Hamed Dalir and Takahiro Sakaguchi and Fumio Koyama},
  title = {High speed modulation of laterally-coupled-cavity edge emitting lasers II},
  booktitle = {},
  year = 2015,
}

@inproceedings{CTT100681271,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Athermal Tunable VCSEL with Thermally- and Electrostatically-actuated Micromachined Mirror},
  booktitle = {},
  year = 2014,
}

@inproceedings{CTT100684997,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Athermal multi-wavelength VCSEL array employing thermally actuated micromachined mirrors},
  booktitle = {},
  year = 2014,
}

@inproceedings{CTT100680923,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Athermal and tunable VCSEL with thermally and electro-statically actuated MEMS mirro},
  booktitle = {},
  year = 2014,
}

@inproceedings{CTT100679449,
  author = {Masanori Nakahama and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Athermal and Widely Tunable VCSEL with Bimorph Micromachined Mirror},
  booktitle = {OECC 2014},
  year = 2014,
}

@inproceedings{CTT100674846,
  author = {Hideaki Yamakawa and Takahiro Sakaguchi and Fumio Koyama},
  title = {Vertical Emission Lasers with Hollow Waveguide},
  booktitle = {},
  year = 2014,
}

@inproceedings{CTT100674942,
  author = {Masanori Nakahama and Shunya Inoue and Hirokazu Sumimoto and Shouhei Moriwaki and Takahiro Sakaguchi and akihiro matsutani and FUMIO KOYAMA},
  title = {Threshold reduction of athermal and tunable micromachined VCSEL},
  booktitle = {},
  year = 2014,
}

@inproceedings{CTT100805953,
  author = {中濱 正統 and 佐野 勇人 and Takahiro Sakaguchi and Akihiro Matsutani and 小山 二三夫},
  title = {マイクロマシンを用いたアサーマル面発光レーザの波長掃引特性 (レーザ・量子エレクトロニクス)},
  booktitle = {電子情報通信学会技術研究報告 = IEICE technical report : 信学技報},
  year = 2013,
}

@inproceedings{CTT100661042,
  author = {Hideaki Yamakawa and Masanori Sadamitsu and Takahiro Sakaguchi and Fumio Koyama},
  title = {Spatial mode multiplexer/demultiplexer based on tapered hollow waveguide with lateral optical confinement structure},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100663962,
  author = {Masanori Nakahama and Hayato Sano and Shunya Inoue and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Wavelength tuning and controlled temperature dependence of MEMS VCSELs with thermally and electrostatically actuated micromachined mirror},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100660918,
  author = {Masanori Nakahama and Hayato Sano and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Wavelength tuning characteristics of athermal VCSELs with thermally actuated MEMS structure II},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100659818,
  author = {Hideaki Yamakawa and Masanori Sadamitsu and Takahiro Sakaguchi and Fumio Koyama},
  title = {Spatial Mode Division Multiplexer/Demultiplexer Based on Tapered Hollow Waveguide with Lateral Optical Confinement Structure},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100658491,
  author = {Masanori Nakahama and Hayato Sano and Shunya Inoue and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Electro-thermally Tunable 850nm VCSELs with metal/semiconductor Thermally Actuated Mirror},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100661046,
  author = {Hideaki Yamakawa and Takahiro Sakaguchi and Fumio Koyama},
  title = {Wavelength Tuning of Hollow Waveguide DBR Lasers},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100653225,
  author = {Masanori Nakahama and Hayato Sano and Shunya Inoue and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Tuning Characteristics of Tunable MEMS VCSELs with AR layer},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100653221,
  author = {Hideaki Yamakawa and Takahiro Sakaguchi and Fumio Koyama},
  title = {Wavelength Tuning of Hollow Waveguide DBR Lasers},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100663966,
  author = {Masanori Nakahama and Hayato Sano and Shunya Inoue and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Giant wavelength-temperature dependence of 850nm VCSELs with a metal/semiconductor thermally actuated mirror},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100657894,
  author = {Junichi Kashino and Hayato Sano and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Modeling and fabrication of angular dependent Si high-contrast grating mirror for transverse mode control of VCSELs},
  booktitle = {},
  year = 2013,
}

@inproceedings{CTT100646586,
  author = {Hideaki Yamakawa and Tomohiro Akutsu and Takahiro Sakaguchi and Fumio Koyama},
  title = {Hollow waveguide DBR Lasers with 2D optical confinement structure toward athermal and narrow linewidth operation},
  booktitle = {電子情報通信学会信学技報},
  year = 2012,
}

@inproceedings{CTT100643522,
  author = {Hideaki Yamakawa and Tomohiro Akutsu and Takahiro Sakaguchi and Fumio Koyama},
  title = {Hollow Waveguide DBR Lasers with Novel 2D Optical Confinement Toward Athermal and Narrow Linewidth Operations},
  booktitle = {},
  year = 2012,
}

@inproceedings{CTT100643718,
  author = {Masanori Nakahama and Hayato Sano and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Fabrication of MEMS VCSELs by a release process with suppressed stiction},
  booktitle = {},
  year = 2012,
}

@inproceedings{CTT100646192,
  author = {Masanori NAKAHAMA and Hayato SANO and Toshikazu SHIMADA and Xiaodong Gu and Takahiro SAKAGUCHI and Akihiro MATSUTANI and Fumio KOYAMA},
  title = {Lateral Integration of Tunable MEMS VCSEL and Slow Light Amplifier},
  booktitle = {IEICE LQE2012-37},
  year = 2012,
}

@inproceedings{CTT100621186,
  author = {Hiroshi Takanashi and Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi and Hiroyuki Uenohara},
  title = {Investigation of Optimized Condition of a Passively Mode-Locked VCSEL with Double-Path Resonance Configuration},
  booktitle = {},
  year = 2011,
}

@inproceedings{CTT100620124,
  author = {Hideaki Yamakawa and Naomi Tadokoro and Takahiro Sakaguchi and Yoshihisa Tokunaga and Fumio Koyama},
  title = {Athermal Hollow Waveguide Distributed Bragg Reflector Laser},
  booktitle = {},
  year = 2011,
}

@inproceedings{CTT100620269,
  author = {Naomi Tadokoro and Hideaki Yamakawa and Takahiro Sakaguchi and Fumio Koyama},
  title = {Mode Selectivity for Hollow Waveguide Tunable Laser},
  booktitle = {IEICE General Conference 2011},
  year = 2011,
}

@inproceedings{CTT100621193,
  author = {Hiroshi Takanashi and Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi and Hiroyuki Uenohara},
  title = {凹面鏡を用いた二往復共振器受動モード同期VCSELの動作特性},
  booktitle = {},
  year = 2011,
}

@inproceedings{CTT100620270,
  author = {Yoshihisa Tokunaga and Hideaki Yamakawa and Takahiro Sakaguchi and Fumio Koyama},
  title = {Athermal Operation for Hollow Waveguide DBR Laser},
  booktitle = {IEICE General Conference 2011},
  year = 2011,
}

@inproceedings{CTT100613935,
  author = {Ken Kirita and Takahiro Sakaguchi and Fumio Koyama},
  title = {Vertical Interconnections for Stacked Photonic Integrated Circuits with Multimode Interference Hollow Waveguide},
  booktitle = {},
  year = 2010,
}

@inproceedings{CTT100612962,
  author = {Ken Kirita and Takahiro Sakaguchi and Fumio Koyama},
  title = {Variable Connections for Stacked Photonic Integrated Circuits by Multimode Interference Hollow Waveguide},
  booktitle = {The 71th Autumn Meeting of JSAP},
  year = 2010,
}

@inproceedings{CTT100603700,
  author = {Takeru Sakairi and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Gating function and spot-size dispersion characteristics of slow light waveguide device},
  booktitle = {The 57th Spring Meeting of Japan Society of Applied Physics and Related Societies},
  year = 2010,
}

@inproceedings{CTT100604530,
  author = {Ayumi Fuchida and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Optical Switch with Slowing Light in Bragg Reflector Waveguide},
  booktitle = {G-COE International Symposium},
  year = 2010,
}

@inproceedings{CTT100604531,
  author = {Takayoshi Fujisawa and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {In-plane Optical Coupling to Bragg Reflector Slow Light Waveguide Devices},
  booktitle = {G-COE International Symposium},
  year = 2010,
}

@inproceedings{CTT100604529,
  author = {Ken Kirita and Takahiro Sakaguchi and Fumio Koyama},
  title = {Polarization-insensitive Vertical MMI Hollow Waveguide Coupler for 3D Integrated Photonic Circuits},
  booktitle = {G-COE International Symposium},
  year = 2010,
}

@inproceedings{CTT100586604,
  author = {Hiroshi Takanashi and Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Takashi Miyaguchi and Kohroh Kobayashi},
  title = {Actively mode-locked VCSEL module with double-path resonance configuration},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100661912,
  author = {FUMIO KOYAMA and Padullaparthi Babu Dayal and Akihiro Imamura and Takahiro Sakaguchi and Akihiro Matsutani},
  title = {Multiple-Wavelength GaInAs/GaAs VCSELs with Grading a Spacer Layer for Short Reach WDM Applications},
  booktitle = {2009 International Conference on Indium Phosphide and Related Materials},
  year = 2009,
}

@inproceedings{CTT100586603,
  author = {Hiroshi Takanashi and Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {Passively mode-locked laser using two VCSEL mesas},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100586602,
  author = {Tomoyuki Kato and Hiroshi Takanashi and Takashi Miyaguchi and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {Active mode-locked laser module using a VCSEL},
  booktitle = {},
  year = 2009,
}

@inproceedings{CTT100576416,
  author = {Jun Yoshida and Takeru Sakairi and Koichi Hasebe and Go Hirano and Takahiro Sakaguchi and Fumio Koyama and Nobuhiko Nishiyama and Catherine Caneau and Chung-En},
  title = {Characterization of Slow Light in Bragg Reflector Waveguide Device},
  booktitle = {The 56th Spring Meeting of Japan Society of Applied Physics},
  year = 2009,
}

@inproceedings{CTT100576412,
  author = {Jun Nakajima and Yuki Hashizume and Takahiro Sakaguchi and Fumio Koyama},
  title = {Fabrication of tunable hollow waveguide reflector using nanoimprint process},
  booktitle = {The 56th Spring Meeting of Japan Society of Applied Physics},
  year = 2009,
}

@inproceedings{CTT100576405,
  author = {Babu Dayal and Akihiro Imamura and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Fabrication of multiple-wavelength GaInAs/GaAs  VCSEL array with grading a spacer layer},
  booktitle = {The 56th Spring Meeting of Japan Society of Applied Physics},
  year = 2009,
}

@inproceedings{CTT100576401,
  author = {Yusuke Mada and Koichi Hasebe and Takeru Sakairi and Takahiro Sakaguchi and Akihiro Matsutachi and Fumio Koyama},
  title = {Bandwidth enhancement of directly-modulated VCSELs with optical filtering},
  booktitle = {The 56th Spring Meeting of Japan Society of Applied Physics},
  year = 2009,
}

@inproceedings{CTT100569928,
  author = {Koichi Hasebe and Takahiro Sakaguchi and Yusuke Mada and Fumio Koyama and Xiaoxue Zhao},
  title = {Bandwidth Enhancement of Directly Modulated DFB Lasers and EML Lasers using Optical Equalizers},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100566595,
  author = {P. Babu Dayal and Jun Nakajima and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Multiple-wavelength VCSEL arrays using surface nano-machining process for WDM applications},
  booktitle = {21st Annual Meeting of The IEEE Lasers & Electro-Optics Society, LEOS2008},
  year = 2008,
}

@inproceedings{CTT100566594,
  author = {Ayumi Fuchida and P. Babu Dayal and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Low Polarization Dependence of Bragg Reflector Slow Light Waveguides},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100569672,
  author = {Tomoyuki KATO and Hiroshi TAKANASHI and Akihiro MATSUTANI and Takahiro SAKAGUCHI and Kohroh KOBAYASHI},
  title = {Active mode-locked VCSEL using external concave mirror with high repetition rate and low threshold current},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100570319,
  author = {Ayumi Fuchida and P. BabuDayal and Takahiro Sakaguchi and Keiske Kuroki and Akihiro Matsutani and Fumio Koyama},
  title = {Investigation on Miniature Optical Gate with Showing light},
  booktitle = {The 69th Autumn Meeting of JSAP},
  year = 2008,
}

@inproceedings{CTT100569663,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {24GHz Mode-Locking of VCSEL with External Concave Mirror},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100569665,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {31 GHz SUB-HARMONIC ACTIVE MODE-LOCKED VCSEL WITH LOW THRESHOLD CURRENT},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100569677,
  author = {Tomoyuki Kato and Hiroshi Takanashi and akihiro matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {VCSELと凹面鏡を用いた31GHzアクティブモード同期},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100588773,
  author = {Keisuke Kuroki and Ayumi Fuchida and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Miniature Optical Gate with VCSEL-based Slow Light Bragg Reflector Waveguide},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100570315,
  author = {Ayumi Fuchida and P. Babu Dayal and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama},
  title = {Polarization Dependence of Insertion Loss of Bragg Reflector Slow Light Waveguide},
  booktitle = {The 2008 IEICE SOCIETY CONFERENCE},
  year = 2008,
}

@inproceedings{CTT100570321,
  author = {Koichi Hasebe and Takahiro Sakaguchi and Fumio Koyama},
  title = {Opticcal equalization of high-speed modulation for directly modulated DFB lasers},
  booktitle = {The 69th Autumn Meeting of JSAP},
  year = 2008,
}

@inproceedings{CTT100569662,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {Double-path resonance of a mode-locked VCSEL using a concave mirror},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100566591,
  author = {Koichi Hasebe and Xiaoxue Zhao and Takahiro Sakaguchi and Fumio Koyama and Connie J. Chang-Hasnain and Nobuhiko Nishiyama and Catherine Caneau and Chung-En Zah},
  title = {Bandwidth Enhancement of Directly Modulated DFB Lasers and EML Lasers using Optical Equalizers},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100570420,
  author = {Koichi Hasebe and Xiauxue Zhao and Fumio Koyama and Connie J. Chang-Hasnain and Catherine Caneau and Chung-En Zah},
  title = {Bandwidth enhancement with tunable optical equalizer for directly modulated VCSELs},
  booktitle = {The 55th Spring Meeting of JSAP},
  year = 2008,
}

@inproceedings{CTT100555417,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {Mode-locked VCSEL using double-path resonance with concave mirror},
  booktitle = {},
  year = 2008,
}

@inproceedings{CTT100548035,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {Model-Locked VCSEL with External Cavity Formed by Concave Mirror},
  booktitle = {},
  year = 2007,
}

@inproceedings{CTT100555360,
  author = {Tomofumi Takeishi and Takahiro Sakaguchi and Fumio Koyama},
  title = {Giant Tuning Chracteristics of Tapered Tunable Hollow Waveguide Bragg Reflector},
  booktitle = {Proceeding of the 2007 IEICE Society Couference},
  year = 2007,
}

@inproceedings{CTT100591121,
  author = {Keisuke Kuroki and Go Hirano and Fumio Koyama and Koichi Hasebe and Takahiro Sakaguchi},
  title = {Slow Light Waveguide Detector Slowing Loght in Bragg Reflector Waveguide},
  booktitle = {33rd European Conference and Exhibition on Optical Communication, ECOC07},
  year = 2007,
}

@inproceedings{CTT100555350,
  author = {Keisuke Kuroki and Go Hirano and Fumio Koyama and Koichi Hasebe and Takahiro Sakaguchi and Nobuhiko Nishiyama and Catherine Cauneau and Chung-En Zah},
  title = {Slow Light Detector with Bragg Reflector Waveguide},
  booktitle = {The 68th Autumn Meeting of Japan Society of Applied Physics and Related Societies},
  year = 2007,
}

@inproceedings{CTT100555358,
  author = {Koichi Hasebe and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama and Nobuhiko Nishiyama and Catherine Cauneau and Chung-En Zah},
  title = {Transverse-mode and Plarization Characteristics of 1.55μm Micromachined VCSELs},
  booktitle = {The 68th Autumn Meeting of Japan Society of Applied Physics and Related Societies},
  year = 2007,
}

@inproceedings{CTT100555415,
  author = {Tomoyuki Kato and Akihiro Matsutani and Takahiro Sakaguchi and Kohroh Kobayashi},
  title = {10GHz mode-lock using composite resonator VCSEL with concave mirror},
  booktitle = {},
  year = 2007,
}

@inproceedings{CTT100548006,
  author = {Koichi Hasebe and Wiganes Janto and Nobuhiko Nishiyama and Catherine Caneau and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama and Chung-En Zah},
  title = {Transverse-mode and Polarization Characteristics of 1.55 μm Micromachined VCSELs},
  booktitle = {12th Optoelectronics and Communications Conference/16th International Conference on Integrated Optics and Optical Fiber Communication, OECC/IOOC2007},
  year = 2007,
}

@inproceedings{CTT100548023,
  author = {Tomofumi Takeishi and Takahiro Sakaguchi and Fumio Koyama},
  title = {Fabrication and characterization of tunable chromatic dispersion compensator based on hollow waveguide},
  booktitle = {12th Optoelectronics and Communications Conference/16th International Conference on Integrated Optics and Optical Fiber Communication, OECC/IOOC2007},
  year = 2007,
}

@inproceedings{CTT100555336,
  author = {Wiganes Janto and Koich Hasebe and Nobuhiko Nishiyama and Catherine Caneau and Takahiro Sakaguchi and Akihiro Matsutani and Fumio Koyama and Chang-en Zah},
  title = {Athermal Operation of Micromachined VCSELs using Bimorph Effect},
  booktitle = {},
  year = 2007,
}

@inproceedings{CTT100547993,
  author = {Go Hirano and Fumio Koyama and Koichi Hasebe and Takahiro Sakaguchi and Nobuhiko Nishiyama and Catherine Caneau and Chung-En Zah},
  title = {Slow light modulator with Bragg reflector waveguide},
  booktitle = {Optical Fiber Communications Conference 2007},
  year = 2007,
}

@inproceedings{CTT100508001,
  author = {Wiganes Janto and Koichi Hasebe and Nobuhiko Nishiyama and Catherine Caneau and Takahiro Sakaguchi and Akihiro Matsutani and P. Babu Dayal and Fumio Koyama and Chung-En Zah},
  title = {Athermal operation of 1.55 μm InP-based VCSEL with thermally-actuated cantilever structure},
  booktitle = {20th International Semiconductor Laser Conference},
  year = 2006,
}

@inproceedings{CTT100508009,
  author = {Wiganes Janto and Koichi Hasebe and Nobuhiko Nishiyama and Catherine Caneau and Takahiro Sakaguchi and Akihiko Matsutani and Fumio Koyama and Chung-En Zah},
  title = {Micromachined Resonant-Cavity Photodetectors with Low Temperature Dependence},
  booktitle = {},
  year = 2006,
}

@inproceedings{CTT100508007,
  author = {Yasuki Sakurai and Yasushi Yokota and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Tunability and athermal operation of tunable hollow waveguide with monolithic MEMS actuator},
  booktitle = {},
  year = 2006,
}

@inproceedings{CTT100508006,
  author = {Wiganes Janto and Nobuhiko Nishiyama and Catherine Caneau and Takahiro Sakaguchi and Akihiko Matsutani and Fumio Koyama and Chung-En Zah},
  title = {Fabrication and Characterization of InP/GaInAsP based Self-Adjustable Cantilever for Temperature-Insensitive VCSELs},
  booktitle = {The 53th Spring Meeting of Jpn. Soc. Appl. Phys.},
  year = 2006,
}

@inproceedings{CTT100508368,
  author = {Yasuki Sakurai and Hideaki Yamakawa and Yasushi Yokota and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Hollow Waveguide Distributed Bragg Reflector for Widely Tunable Optical Devices},
  booktitle = {Optical Fiber Communications Conference 2006},
  year = 2006,
}

@inproceedings{CTT100508008,
  author = {Yasuki Sakurai and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Tunable wavelength filter based on hollow waveguide Bragg reflectors},
  booktitle = {},
  year = 2006,
}

@inproceedings{CTT100542054,
  author = {Takeshi Uchida and Tomoyuki Miyamoto and Takahiro Sakaguchi and Fumio Koyama},
  title = {High-Order Transverse Mode Suppression in VCSELs with Temperature-Profile Control},
  booktitle = {},
  year = 2005,
}

@inproceedings{CTT100408146,
  author = {Yasuki Sakurai and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Dispersion control using hollow waveguide Bragg reflector with variable tapered air-core},
  booktitle = {Extended Abstracts (The 66nd Autumn Meeting) of Jpn. Soc. Appl. Phys.},
  year = 2005,
}

@inproceedings{CTT100398796,
  author = {Takeshi Uchida and Tomoyuki Miyamoto and Takahiro Sakaguchi and Fumio Koyama},
  title = {Transverse mode control in long-monolithic-cavity VCSELs with temperature-profile control (II)},
  booktitle = {},
  year = 2005,
}

@inproceedings{CTT100408147,
  author = {Yasuki Sakurai and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {Air-core Resonator with Widely Tunable Hollow Waveguide Bragg Reflectors},
  booktitle = {SEE},
  year = 2005,
}

@inproceedings{CTT100408144,
  author = {Yasuki Sakurai and Akihiro Matsutani and Takahiro Sakaguchi and Fumio Koyama},
  title = {160nm Continuous Wavelength Tuning of Tunable Hollow Waveguide Bragg Reflector},
  booktitle = {Optical Society of America},
  year = 2005,
}

@inproceedings{CTT100692119,
  author = {TAKAHIRO SAKAGUCHI and Yasuki Sakurai and Miura Toru and FUMIO KOYAMA},
  title = {Propagation Measurement of Hollow Optical Waveguide with Dielectric Multilayer Mirrors},
  booktitle = {Extended Abstracts (The 51th Spring Meeting) of Jpn. Soc. Appl. Phys.},
  year = 2004,
}

@inproceedings{CTT100491000,
  author = {Takahiro Sakaguchi and Yasuki Sakurai and Toru Miura and Fumio Koyama},
  title = {Propagation Loss Measurement of Hollow Optical Waveguide with Dielectric Multilayer Mirrors},
  booktitle = {The 2003 IEICE Society Conference},
  year = 2003,
}

@inproceedings{CTT100458424,
  author = {Tsukasa Yoshida and Yoshihiko Uchida and Takahiro Sakaguchi and Tomoyuki Miyamoto and Fumio Koyama and Kenichi Iga},
  title = {Characterization of thin film InGaN/GaN QWs formed by removing a substrate with UV laser irradiation for blue VCSELs},
  booktitle = {},
  year = 2001,
}

@inproceedings{CTT100664553,
  author = {内田慶彦 and 岩田雅年 and Takahiro Sakaguchi and 吉田司 and Tomoyuki Miyamoto and FUMIO KOYAMA and Kenichi Iga},
  title = {Characteristic of optical pumping for GaN VCSEL structure},
  booktitle = {},
  year = 2000,
}

@inproceedings{CTT100662428,
  author = {F. Koyama and T. Miyamoto and Z. Chen and A. Matsutani and T. Sakaguchi and K. Iga},
  title = {Highly strained GaInAs/GaAs QW for 1.2 μm surface emitting lasers},
  booktitle = {},
  year = 1999,
}

@inproceedings{CTT100662424,
  author = {F. Koyama and D. Schlenker and T. Miyamoto and Z. Chen and A. Matsutani and T. Sakaguchi and K. Iga},
  title = {2 Gbit/s single-mode fiber data transmission using 1.2 μm heatsink-free GaInAs/GaAs laser for Gbit/s-LAN},
  booktitle = {},
  year = 1999,
}

@inproceedings{CTT100661710,
  author = {Masatoshi Iwata and Takahiro Sakaguchi and Akira Inoue and Yuichiro Moriguchi and Yoshihiko Uchida and FUMIO KOYAMA and Kenichi Iga},
  title = {AlGaN barrier layer in InGaN multi-quantum-wells},
  booktitle = {},
  year = 1999,
}

@inproceedings{CTT100477167,
  author = {森口雄一郎 and Tomoyuki Miyamoto and Takahiro Sakaguchi and 井上彰 and 岩田雅年 and 内田慶彦 and FUMIO KOYAMA and Kenichi Iga},
  title = {GaN-based crystal growth on SiO<sub><small>2</small></sub> substrate by MOVPE (II) - growth and characterization of InGaN -},
  booktitle = {},
  year = 1999,
}

@inproceedings{CTT100661903,
  author = {T. Sakaguchi and T. Shirasawa and N. Mochida and A. Inoue and MaS. Iwata and T. Honda and F. Koyama and K. Iga},
  title = {Highly reflective AlN/GaN and ZrO2/SiO2 multilayer distributed Bragg reflectors for InGaN/GaN surface emitting lasers},
  booktitle = {},
  year = 1998,
}

@inproceedings{CTT100661964,
  author = {A. Inoue and T. Sakaguchi and Y. Moriguchi and T. Miyamoto and M. Iwata and F. Koyama and K.Iga},
  title = {InGaN selective MOCVD growth and polycrystalline formation on SiO2-patterned sapphire substrate},
  booktitle = {},
  year = 1998,
}

@inproceedings{CTT100661586,
  author = {T. Honda and A. Katsube and T. Sakaguchi and F. Koyama and K.Iga},
  title = {Design of GaN-based surface emitting laser with low threshold operation},
  booktitle = {},
  year = 1995,
}

@inproceedings{CTT100661587,
  author = {A. Katsube and T. Honda and T. Sakaguchi and F. Koyama and K. Iga},
  title = {Design of low threshold GaN-based quantum well surface emitting laser},
  booktitle = {},
  year = 1995,
}

@inproceedings{CTT100661157,
  author = {T. Honda and T.Sakaguchi and F. Koyama and K. Iga and K. Inoue and H. Munekata and H. Kukimoto},
  title = {Design and fabrication of ZnSe-based blue/green surface emitting lasers},
  booktitle = {},
  year = 1995,
}

@inproceedings{CTT100536771,
  author = {Takahiro Sakaguchi and Fumio Koyama and Kenichi Iga},
  title = {A consideration on structures of a surface emitting laser with a semiconductor multilayer distributed Braggrueflector.},
  booktitle = {National Conventional Record of IEICE of Japan},
  year = 1988,
}

@inproceedings{CTT100646654,
  author = {T. Sakaguchi and F. Koyama and K. Iga},
  title = {A vertical cavity GaAs/AlAs DBR surface emitting laser and its lasing characteristics},
  booktitle = {},
  year = 1988,
}

@inproceedings{CTT100646645,
  author = {T. Sakaguchi and M. Oshikiri and F. Koyama and K. Iga},
  title = {TiO2 (or Si)/SiO2 dielectric multilayer reflector for surface emitting semiconductor lasers},
  booktitle = {},
  year = 1988,
}

@inproceedings{CTT100646631,
  author = {F. Koyama and H. Segawa and A Nakamura and T. Sakaguchi and K. Iga},
  title = {MOCVD growth and characterization of GaAlAs/GaAs multi-heterostructure for surface emitting laser},
  booktitle = {},
  year = 1986,
}

@inproceedings{CTT100646628,
  author = {F. Koyama and H. Segawa and S. Kinoshita and H. Uenohara and T.Sakaguchi and A.Nakamura and K. Iga},
  title = {GaAlAs/GaAs MOCVD growth device and materials},
  booktitle = {},
  year = 1986,
}

@misc{CTT100630430,
  author = {Hideaki Yamakawa and Yoshihisa TOKUNAGA and Takahiro SAKAGUCHI and Fumio KOYAMA},
  title = {Mode Selectivity and Athermal Operation for Hollow Waveguide DBR Lasers},
  year = 2011,
}

@misc{CTT100628262,
  author = {Fumio Koyama and Ken Kirita and Hamed Dalir and Akihiro Imamura and Takahiro Sakaguchi},
  title = {Vertical Interconnects and Multi-mode MultiplexerslDemultiplexers based on Multi-mode Hollow Waveguide},
  year = 2011,
}

@misc{CTT100594907,
  author = {Takahiro Sakaguchi},
  title = {},
  year = 1984,
}



@misc{CTT100594907,
  author = {Takahiro Sakaguchi},
  title = {},
  school = {Sojo University (Kumamoto Instutite of Technology)},
  year = 1984,
  note = {undergraduate thesis},
}