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, T. Kakitsuka, "Theoretical Analysis of the Impact of Carrier Effects on the Modulation Bandwidth of Complex-Coupled Grating Membrane DFB Lasers," 2026年電子情報通信学会総合大会, C-3_C-4-36, 2026.3.
C. Zhang, K. Takahata, T. Hiraki, T. Aihara, S. Matsuo, and T. Kakitsuka, "Design of Bandwidth-Enhanced Facet Reflection Tolerant Directly Modulated Membrane Distributed Feedback Lasers with Wire-Like Active Region," 2025 IEEE Photonics Conference (IPC 2025), paper WB4.3, Singapore, 2025.11. https://dx.doi.org/10.1109/ipc65510.2025.11282246
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
C. Zhang, K. Takahata, T. Hiraki, S. Matsuo, and T. Kakitsuka, "Mode Stabilizing Mechanism in Anti-phase Wire-like Active-region Membrane Distributed Reflector Lasers," The 16th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2024), P3-040, Incheon, Korea, 2024.8. http://dx.doi.org/10.1109/CLEO-PR60912.2024.10676950
L. Wang, D. Huang, X. Wu, W. Li, K. Takahata, K. Kato, and T. Kakitsuka, "Analysis of High Radiofrequency Power InGaN Vacuum Traveling-Carrier Photodiodes," The 29th Opto-Electronics and Communications Conference (OECC 2024), MoC2-1, Melbourne, Australia, 2024.6.http://dx.doi.org/10.1109/OECC54135.2024.10975661
D. Huang, L. Wang, X. Wu, W. Li, K. Takahata, K. Kato, T. Kakitsuka, "Theoretical Analysis of InGaN Vacuum Traveling Carrier Photodiodes for Terahertz Wave Generation," 2024年第71回応用物理学会春季学術講演会, 24a-P07-5, 2024.3.
T. Kakitsuka and K. Takahata, "Theoretical analysis of dispersion-tolerant single drive mixed amplitude-frequency modulation lasers," 28th International Semiconductor Laser Conference (ISLC 2022), TuP-35, Matsue, Japan, 2022.10. http://dx.doi.org/10.23919/islc52947.2022.9943459