メンバー

教員

教授　硴塚孝明 (KAKITSUKA, Takaaki)
博士（工学）

複素結合回折格子レーザ理論

C. Zhang, K. Takahata, T. Hiraki, T. Aihara, S. Matsuo, and T. Kakitsuka, "Design of low-chirp directly modulated corrugation-pitch-modulated distributed-reflector lasers with wire-like active regions," Optics Express 34(8), pp. 15124-15139, 2026.4. https://dx.doi.org/10.1364/OE.590003
C. Zhang, K. Takahata, T. Hiraki, T. Aihara, S. Matsuo, and T. Kakitsuka, "Enhancing Single-Mode Stability and Dynamic Characteristics in Complex-Coupled Grating Wire-Like Active-Region Membrane Distributed Reflector Lasers," IEEE J. Quantum Electron. 61(3), 2100111, 2025.6. http://dx.doi.org/10.1109/jqe.2025.3567583

フォトン・フォトン共鳴直接変調レーザ

S. Yamaoka, N.-P. Diamantopoulos, H. Nishi, R. Nakao, T. Fujii, K. Takeda, T. Hiraki, T. Tsurugaya, S. Kanazawa, H. Tanobe, T. Kakitsuka, T. Tsuchizawa, F. Koyama, and S. Matsuo, "Directly modulated membrane lasers with 108 GHz bandwidth on a high-thermal-conductivity silicon carbide substrate," Nat. Photon. 15(1), pp. 28-35, 2020.10.http://dx.doi.org/10.1038/s41566-020-00700-y

メンブレンレーザ・フォトニック結晶レーザ

S. Matsuo and T. Kakitsuka, "Low-operating energy directly modulated lasers for short-distance optical interconnects," Advances in Optics and Photonics 10(3), pp. 567-643, 2018.8. http://dx.doi.org/10.1364/AOP.10.000567
K. Takeda, T. Sato, A. Shinya, K. Nozaki, W. Kobayashi, H. Taniyama, M. Notomi, K. Hasebe, T. Kakitsuka, and S. Matsuo“Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers," Nat. Photon. 7(7), pp. 569-575, 2013.5. http://dx.doi.org/10.1038/NPHOTON.2013.110
S. Matsuo, A. Shinya, T. Kakitsuka, K. Nozaki, T. Segawa, T. Sato, Y. Kawaguchi, and M. Notomi, "High-speed ultracompact buried heterostructure photonic-crystal laser with 13 fJ of energy consumed per bit transmitted," Nat. Photon. 4(9), pp. 648-654, 2010.8. http://dx.doi.org/10.1038/NPHOTON.2010.177

光変調器・光増幅器

T. Hiraki, T. Aihara, K. Hasebe, K. Takeda, T. Fujii, T. Kakitsuka, T. Tsuchizawa, H. Fukuda, and S. Matsuo. "Heterogeneously integrated III-V/Si MOS capacitor Mach-Zehnder modulator," Nat. Photon. 11(8), pp. 482-485, 2017.7. http://dx.doi.org/10.1038/NPHOTON.2017.120
T. Kakitsuka, Y. Shibata, M. Itoh, Y. Kadota, Y. Tohmori, and Y. Yoshikuni "Influence of Buried Structure on Polarization Sensitivity in Strained Bulk Semiconductor Amplifiers," IEEE J. Quantum Electron. 38(1), pp. 85-92, 2002.1. http://dx.doi.org/10.1109/3.973323

光ファイバ通信用変調光源

T. Kakitsuka, S. Matsuo, T. Segawa, Y. Shibata, Y. Kawaguchi, and R. Takahashi, "20-km transmission of 40 Gb/s signal using frequency modulated DBR laser," 2009 Optical Fiber Communication Conference (OFC 2009), OThG4, San Diego, 2009.3. http://dx.doi.org/10.1364/OFC.2009.OThG4
T. Kakitsuka and S. Matsuo, "High-speed frequency mopdulated DBR lasers for long-reach transmission," IEICE Trans. Electron. E92-C(7), p. 929-936, 2009.7. http://dx.doi.org/10.1587/transele.E92.C.929

波長制御・波長ルーティングデバイス

T. Segawa, S. Matsuo, T. Kakitsuka, Y. Shibata, T. Sato, Y. Kawaguchi, Y. Kondo, and R. Takahashi, "All-optical wavelength-routing switch with monolithically integrated filter-free tunable wavelength converters and an AWG," Optics Express 18(5) pp. 4340-4345, 2010.3. http://dx.doi.org/10.1364/OE.18.004340
T. Kakitsuka, S. Matsuo, S-H. Jeong, T. Segawa, H. Okamoto, Y. Kawaguchi, Y. Kondo, Y. Yoshikuni, and H. Suzuki, "Design of a widely tunable laser with a chirped ladder filter,”Optical and Quantum Electronics, 38(12), pp. 1053-1060, 2006.9. https://doi.org/10.1007/s11082-006-9030-z

量子ドットの電子状態解析

T. Saito, H. Ebe, Y. Arakawa, T. Kakitsuka, and M. Sugawara,"Optical polarization in columnar InAs/GaAs quantum dots: 8-Band k.p calculations", Phys. Rev. B 77(19), 195318-1-11, 2008.5. http://dx.doi.org/10.1103/PhysRevB.77.195318
T. Kakitsuka, T. Saito, T. Nakaoka, Y. Arakawa, H. Ebe, M. Sugawara, and Y. Yoshikuni, "Numerical analysis of transition energy shift in InAs/GaAs quantum dots induced by strain-reducing layers," Physica Stat Solidi (c), 0(4), pp.1157-1160, 2003.7. http://dx.doi.org/10.1002/pssc.200303026