論文

• Xiaoxue Zhao, Koich Hasebe, Takahiro Sakaguchi, Fumio Koyama, Connie J. Chang-Hasnain, Nobuhiko Nishiyama, Catherine Canueau, Chung-En Zah. Tunable optical equalizer using diffraction grating filters, IEEE Photon. Technol. Lett, vol. 20, no. 18, pp. 1590, Sept. 2008.
• Koichi Hasebe, XiaoUe Zhao, Takahiro Sakaguchi, Fumio Koyama, Connie Chang-Hasnain, Nobuhiko Nishiyama, Cathrine Caneau, Chung-en Zah. Bandwidth Enhancement with Tunable Optical Equalizer for High Speed Intensity Modulation, CLEO 2008, 2008 Conference on Lasers and Electro-Optics & Quantum Electronics and Laser Science Conference, Vols 1-9, pp. 430-431, May 2008.
• Koichi Hasebe, Fumio Koyama. Modeling of All-Optical-Signal Processing Devices Based on Two-Mode Injection-Locked Vertical-Cavity Surface-Emitting Laser, Jpn. J. Appl. Phys, Vol. 45, No. 8B, pp. 6697-6703, Aug. 2006.
• 長谷部浩一, 大西裕, 小山二三夫. 面発光レーザ構造を用いた高速偏波面制御素子の動作解析, vol. J88-C, no. 12, pp. 1190-1197, Dec. 2005.
• Koichi Hasebe, Yutaka Onishi, Fumio Koyama. All-optical regenerator with re-polarization function based on dual optical injection VCSEL, IEICE ELEX, vol. 2, no. 11, pp. 338-343, June 2005.
• Koichi Hasebe, Yutaka Onishi, Fumio Koyama. Novel polarization controller based on injection-locked vertical-cavity surface-emitting laser, IEICE ELEX, vol. 2, no. 8, pp. 274-279, May 2005.

国際会議発表 (査読有り)

• Akihiro Imamura, Koichi Hasebe, Akihiro Matsutani, Fumio Koyama. Tapered hollow waveguide multiplexer for multi-wavelength VCSEL array, Photonics West 2009, IPRM2009, 7229-15, Jan. 2009.
• Koichi Hasebe, Takahiro Sakaguchi, Yusuke Mada, Fumio Koyama, Xiaoxue Zhao. Bandwidth Enhancement of Directly Modulated DFB Lasers and EML Lasers using Optical Equalizers, 21st Annual Meeting of The IEEE Lasers & Electro-Optics Society, LEOS2008, WV4, pp. 593-594, Nov. 2008.
• Keisuke Kuroki, Go Hirano, Fumio Koyama, Koichi Hasebe, Takahiro Sakaguchi. Slow Light Waveguide Detector Slowing Loght in Bragg Reflector Waveguide, 33rd European Conference and Exhibition on Optical Communication, ECOC07, P-49, Sept. 2007.
• 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, Sept. 2006.
• Koichi Hasebe, Fumio Koyama, Nobuhiko Nishiyama, Catherine Caneau, Chung-En Zah. All-optical Polarization Controller Using Elliptical-Apertured 1.5μm VCSEL, Conference on Lasers and Electro-Optics（CLEO 2006）, Conference on Lasers and Electro-Optics, CLEO 2006, CWP1, May 2006.
• Koichi Hasebe, Fumio Koyama. All-optical signal processing based on optical injection-locked two-mode vertical-cavity surface-emitting laser, Photonics West Optoelectronics 2006, IPRM2006, Photonics West Optoelectronics 2006, IPRM2006, 6115-36, Jan. 2006.
• Koichi Hasebe, Yutaka Onishi, Fumio Koyama. Novel polarization controller based on injection vertical-cavity surface emitting laser, International Quantum Electronics Conference 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005, IQEC and CLEO-PR 2005, International Quantum Electronics Conference 2005 and the Pacific Rim Conference on Lasers and Electro-Optics 2005, IQEC and CLEO-PR 2005, CTuJ2-4, pp. 164-165, July 2005.

国内会議発表 (査読なし・不明)

• 佐野勇人, 長谷部浩一, 小山二三夫. MEMS を用いた利得追従型面発光レーザの提案, 第56回応用物理学関係連合講演会, 1p-G-12, Mar. 2009.
• 吉田 潤, 坂入 健, 長谷部 浩一, 平野 豪, 坂口 孝浩, 小山 二三夫, 西山 伸彦, 香野 花沙鈴, 石 鍾恩. ブラック反射鏡導恥デバイスのスローライト伝搬の評価, 第56回応用物理学関係連合講演会, 2a-B-7, p. 1245, Mar. 2009.
• Koichi Hasebe, Xiauxue Zhao, Fumio Koyama, Connie J. Chang-Hasnain, Catherine Caneau, Chung-En Zah. Bandwidth enhancement with tunable optical equalizer for directly modulated VCSELs, The 55th Spring Meeting of JSAP, 30a-ZQ-4, Mar. 2008.

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