論文

• 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, June 2015.
• Hamed Dalir, Yuta Takahashi, Fumio Koyama. Low-voltage, high-speed and compact electroabsorption modulator laterally integrated with 980-nm VCSEL, OPTICS EXPRESS(OPEX), vol. 22, no. 21, pp. 25746-25755, Oct. 2014.
• Hamed Dalir, Fumio Koyama. 30GHz ultracompact electroabsorption modulator integrated with 980nm VCSEL with resonance effect in coupled cavities, Applied Physics Express(APEX), vol. 7, no. 11, pp. 112101-1-3, Oct. 2014.
• Hamed Dalir, Moustafa Ahmed, Ahmed Bakry, Fumio Koyama. Compact electro-absorption modulator integrated with vertical-cavity surface-emitting laser for highly efficient millimeter-wave modulation, Applied Physics Letters(APL), vol. 105, no. 081113 (2014), pp. 081113-1-5 (2014), Aug. 2014.
• Hamed Dalir, FUMIO KOYAMA. 40 Gbps modulation of transverse coupled cavity VCSEL with push–pull modulation scheme, Applied Physics Express(APEX), vol. 7, pp. 092701-1-4, July 2014.
• Hamed Dalir, FUMIO KOYAMA. Highly stable operations of transverse coupled cavity VCSELs with enhanced modulation bandwidth, Electronics Letters 22nd, vol. 50, no. 11, pp. 823-824, May 2014.
• Hamed Dalir, FUMIO KOYAMA. Highly efficient out-of-plane optical coupler based on tapered hollow waveguide, Japanese Journal of Applied Physics, vol. 53, pp. 048004-1-4, Mar. 2014.
• Hamed Dalir, Akihiro Matsutani, Moustafa Ahmed, Ahmed Bakry, Fumio Koyama. High Frequency Modulation of Transverse-Coupled-Cavity VCSELs for Radio over Fiber Applications,” IEEE Photonics Technology Letter, IEEE Photonics Technology Letters, Vol. 26, No. 3, pp. 281 - 284, Feb. 2014.
• Hamed Dalir, Fumio Koyama. High-speed operation of bow-tie-shaped oxide aperture VCSELs with photonーphoton resonance, Applied Physics Express(APEX), vol. 7, no. 2, pp. 022102-1-4, Jan. 2014.
• Hamed Dalir, Yuta Takahashi, Fumio Koyama. Compact low driving voltage (<400 mVpp) electro-absorption modulator laterally integrated with VCSEL, Electronics Letters, Vol. 50, No. 2, pp. 101-103, Jan. 2014.
• Hamed Dalir, Fumio Koyama. 29GHz directly modulated 980nm vertical-cavity surface emitting lasers with bow-tie shape transverse coupled cavity, Appl. Phys. Lett., vol. 103, 091109-1-4, Aug. 2013.
• Hamed Dalir, Fumio Koyama. Bandwidth enhancement of single-mode VCSEL with lateral optical feedback of slow light, IEICE Electronics Express, vol. 8, no. 13, pp. 1075-1081, July 2011.
• Hamed Dalir, Yasushi Yokota, Fumio Koyama. Spatial Mode Multiplexer/Demultiplexer Based on Tapered Hollow Waveguide, IEICE Electronics Express, 2011XCL6281, May 2011.

国際会議発表 (査読有り)

• 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, May 2015.
• 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, May 2015.
• 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, May 2015.
• Toshikazu Shimada, Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Beam scanner integrated VCSEL with electro-thermal wavelength tuning, IEEE International Semiconductor Laser Conference, WB3, Sept. 2014.
• Hamed Dalir, Yuta Takahashi, Fumio Koyama. Ultra-compact and High-bandwidth (>30GHz) Modulator Integrated VCSEL with Transverse-mode Beating, IEEE International Semiconductor Laser Conference, WB1, Sept. 2014.
• Hamed Dalir, Yuta Takahashi, Fumio Koyama. High-speed Compact Electro-absorption Modulator Laterally Integrated with VCSEL, European Conference on Optical Communications, ECOC 2014, Mo.4.4.6, pp. 1-3, Sept. 2014.
• Fumio Koyama, Hamed Dalir. High speed modulation and new functions of transverse coupled cavity VCSEL, iNOW2014, International Nano-Optoelectronics Workshop, FrA1, pp. 38-39, Aug. 2014.  公式リンク  
  
• Hamed Dalir, Fumio Koyama. Highly Stable Operations of High Speed Transverse Coupled Cavity VCSELs, The OptoElectronics and Communication Conference 2014, OECC 2014, MO1D-3, pp. 35-36, July 2014.
• Xiaodong Gu, Ayako Suzuki, Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Large Enhancement in Modulation Bandwidth of Low-Voltage Slow Light Bragg Reflector Waveguide Modulator, OECC 2014, OECC 2014, pp. 170-171, July 2014.
• FUMIO KOYAMA, Hamed Dalir. High-speed modulation of transverse-coupled-cavity VCSELs, SPIE, Photonics Europe, 9134-6, Apr. 2014.
• Hamed Dalir, Yuta Takahashi, Fumio Koyama. Low Driving Voltage (< 400mVpp) Electro-absorption Modulator Laterally Integrated with VCSEL, Optical Fiber Communications Conference and Exhibition 2014, OFC 2014, W4C.3, pp. 1-3, Mar. 2014.
• Hamed Dalir, Fumio Koyama. Ultrafast direct modulation of transverse-mode coupled-cavity VCSELs far beyond the relaxation oscillation frequency, Photonics West 2014, Photonics West 2014, pp. 9001-5, Feb. 2014.
• Hamed Dalir, Fumio Koyama. In-plane integration of VCSEL with photo-detector by using laterally coupled cavities, Photonics West 2014, Photonics West 2014, pp. 9001-7, Feb. 2014.
• Hamed Dalir, Fumio Koyama. Modulation response enhancement of transverse-coupled cavity VCSELs for radio over fiber applications, 18th Microoptics Conference (MOC’13), C4, Oct. 2013.
• Hamed Dalir, Fumio Koyama. Modulation Bandwidth Enhancement of Quasi-single-mode Transverse Coupled Cavity VCSEL, IEEE Photonics Conference 2013(IPC2013), PD3, pp. 1-2, Sept. 2013.
• Hamed Dalir, Fumio Koyama. Beyond 28.6GHz Directly Modulated 980nm VCSEL with Transverse Optical Feedback of Slow Light, Aug. 2013.
• Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Modulation of Spatial Intensity Distribution of Laterally Coupled Twin VCSELs, 2013 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR, ThK3-2, July 2013.
• Hamed Dalir, Fumio Koyama. Laterally-Coupled-Cavity VCSELs for Push-Pull High Speed Modulation, IEEE Summer Topicals 2013, MA4.3, July 2013.
• Hamed Dalir, Fumio Koyama. High-speed Direct Modulation Beyond 29GHz of 980nm Transverse Coupled Cavity VCSEL, 2013 Conference on Lasers and Electro-Optics Pacific Rim, CREO-PR, PD2-2, July 2013.
• Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Push-pull modulation of lateral coupling of dual VCSEL cavities using a bow-tie shape, Vertical-Cavity Surface-Emitting Lasers XVII, SPIE Photonics West 2013, 8639-31, Feb. 2013.
• Hamed Dalir, Fumio Koyama. Proposal of In-plane to Vertical Optical Coupler Based on Tapered Hollow Waveguide, Frontiers in Optics 2012, FiO2012, FW5E.4, Oct. 2012.
• Hamed Dalir, Fumio Koyama. Electrical Transverse-Mode Switching of Laterally Coupled Cavity VCSELs, 2012 International Nano-Optoelectronics Workshop, iNOW 2012, 4-P4, Aug. 2012.
• Hamed Dalir, Yasushi Yokota, Fumio Koyama. Spatial Mode Multiplexer/Demultiplexer Based on Tapered Hollow Waveguide, The 16th Opto-Electronics And Communications Conference, OECC2011, 7E2_2, July 2011.
• Hamed Dalir, Fumio Koyama. Enhanced modulation bandwidth of VCSELs with lateral optical feedback beyond the frequency of relaxation oscillations, International Nano-Optoelectronics Workshop, iNOW2011, P3, July 2011.
• Hamed Dalir, Fumio Koyama. Large signal modulation analysis of lateral-optical-feedback VCSELs, 16th MicroOptics Conference, MOC2010, MD1, Oct. 2010.
• Hamed Dalir, Fumio Koyama. Modulation bandwidth enhancement of VCSELs with lateral optical feedback of slow light, 2010 IEEE International Semiconductor Laser Conference, ISLC Kyoto, P10, pp. 83-84, Sept. 2010.

国内会議発表 (査読なし・不明)

• Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Ultra-compact and High-speed Electro-absorption Modulator Integrated VCSEL, 2015 IEICE General Conference, C-4-6, Mar. 2015.
• 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, Mar. 2015.
• 高橋雄太, Dalir Hamed, 松谷晃宏, 小山二三夫. 面発光レーザ・変調器集積デバイスによる戻り光の制御, 第75回 応用物理学会秋季学術講演会, 19p-C1-17, Sept. 2014.
• 谷口寛樹, Hamed Dalir, 高橋 雄太, 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, 2014年電子情報通信学会通信ソサイエティ大会, C-4-4, Sept. 2014.
• Hamed Dalir, Fumio Koyama. Ultra-fast Compact Modulator-Integrated-VCSEL for Highly Efficient Millimeter-wave Modulation, The 75th JSAP Autumn Meeting 2014, 20p-C1-5, Sept. 2014.
• 高橋雄太, Hamed Dalir, 島田 敏和, 松谷晃宏, 小山二三夫. くびれ酸化狭窄構造を用いた面発光レーザ・変調器集積デバイス, 第61 回応用物理学会春季学術講演会, 20a-F8-8, Mar. 2014.
• Hamed Dalir, Yuta Takahashi, Toshikazu Shimada, Fumio Koyama. Strong Lateral Coupling from VCSEL to Slow Light Waveguide by Width Modification, The 61st JSAP Spring Meeting 2014, 18p-F9-16, Mar. 2014.
• Hamed Dalir, Fumio Koyama. 27 GHz Directly Modulated Transverse Coupled Cavity VCSEL by Utilizing the Photon-Photon Resonance, The 61st JSAP Spring Meeting 2014, 18p-F9-15, Mar. 2014.
• Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Transverse Coupled Cavity VCSELs for Push-Pull Modulation, The 74th Autumn Meeting 2013, 16p-D4-8, Sept. 2013.
• Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Modulation Bandwidth Enhancement of Laterally-coupled Cavity VCSELs for Radio over Fiber Applications, The 74th Autumn Meeting 2019, 16p-A8-6, Sept. 2013.
• Hamed Dalir, Akihiro Matsutani, Fumio Koyama. Beyond 25GHz Directly Modulated 980nm VCSEL with Lateral Optical Feedback, The 74th Autumn Meeting 2013, 16p-D4-7, Sept. 2013.
• Hamed Dalir, Fumio Koyama. Push-Pull Modulation of Transverse Coupled-Cavity VCSELs, IEICE Technical Report, LQE/OPE2013, June 2013.
• Hamed Dalir, Fumio Koyama. Electrical Transverse-Mode Switching of Laterally Coupled Cavity VCSELs, IEICE General Conference 2013, C-4-9, Mar. 2013.
• 貞光雅徳, ハメドダリル, 小山二三夫. テーパ中空導波路を用いたモード多重用合分波器の設計, 電子情報通信学会2012年ソサエティ大会, C-3-14, Sept. 2012.
• Hamed Dalir, Fumio Koyama. Taper Structure for Lateral Coupling from VCSEL to Slow Light Waveguide, The 59th Spring Meeting of Japan Society of Applied Physics and Related Societies, 17p-GP12-3, Mar. 2012.
• Hamed Dalir, Fumio Koyama. 90°Bend Device Based on Tapered Hollow Waveguide, The 59th Spring Meeting of Japan Society of Applied Physics and Related Societies, 18a-GP4-14, Mar. 2012.
• Hamed Dalir, Fumio Koyama. Proposal of Spatial Mode Multiplexer/Demultiplexer Based on Tapered Hollow Waveguide, The 58th Spring Meeting of Japan Society of Applied Physics and Related Societies, 24p-KA-13, Mar. 2011.
• Hamed Dalir, Fumio Koyama. Proposal of laterally coupled VCSELs for modulation-bandwidth enhancement, The 71th Autumn Meeting of JSAP, 16p-H-5, Sept. 2010.

その他の論文・著書など

• Hamed Dalir, Yuta Takahashi, Fumio Koyama. Low Driving Voltage Electro-absorption Modulator Laterally Integrated with VCSEL, IEICE Technical Report, June 2014.
• 小山二三夫, 桐田健, Hamed Dalir, 今村明博, 坂口孝浩. 多モード中空光導波路を用いた3次元層間光接続と多モード合分波回路, 第1回集積光デバイスと応用技術研究会(電子情報通信学会), pp. 25-30, May 2011.

特許など

• 小山二三夫, DalirHamed. 光変調機能付き面発光レーザ. 特許. 登録. 国立大学法人東京工業大学. 2014/08/08. 特願2014-162088. 2016/03/22. 特開2016-039274. 特許第5721246号. 2015/04/03 2015.
• 小山二三夫, DalirHamed, 近藤　崇, 城岸　直輝, 武田　一隆, 中山　秀生. 面発光型半導体レーザおよび光伝送装置. 特許. 登録. 国立大学法人東京工業大学, 富士ゼロックス株式会社. 2013/08/07. 特願2013-163757. 2015/02/16. 特開2015-032801. 特許第6240429号. 2017/11/10 2017.
• 小山二三夫, DalirHamed, 島田　敏和, 近藤　崇, 武田　一隆. 面発光型半導体レーザおよび光伝送装置. 特許. 登録. 国立大学法人東京工業大学, 富士ゼロックス株式会社. 2010/08/24. 特願2010-187242. 2012/03/08. 特開2012-049180. 特許第5645546号. 2014/11/14 2014.

学位論文

• Study on High Speed VCSEDs Based on Lateral Resonator Integration for Optical Interconnects,  Summary,  Doctor (Academic),  Tokyo Institute of Technology,  2014/03/26,   
• Study on High Speed VCSEDs Based on Lateral Resonator Integration for Optical Interconnects,  Thesis,  Doctor (Academic),  Tokyo Institute of Technology,  2014/03/26,   
• Study on High Speed VCSEDs Based on Lateral Resonator Integration for Optical Interconnects,  Exam Summary,  Doctor (Academic),  Tokyo Institute of Technology,  2014/03/26,   

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