2025年

1. S. Nawa, M. Kamata and T. Baba, “Optical frequency domain reflectometry analysis of various basic components in Si photonics”, Jpn. J. Appl. Phys., vol. 64, no. 066501, pp. 1-10, 2025.

2. K. Kawahara and T. Baba, “Electro-optic co-simulation in high-speed silicon photonics transceiver design using standard electronic circuit simulator”, IEEE J. Microwaves, vol. 5, no. 4, pp. 983-995, 2025.

3. K. Kawahara, T. Tsuchizawa, N. Yamamoto, Y. Maegami, K. Yamada, S. Hara, and T. Baba, “High-efficiency compact optical transmitter with a total bit energy of 0.78 pJ/bit including silicon slow-light modulator and open-collector current-mode driver”, IEEE J. Sel. Top. Quantum Electron., vol. 32, no. 2, pp. 3400111, 2026. (on-line available since 2025)

4. T. Baba, “Recent progress in on-chip SLG FMCW LiDAR”, SPIE Photonics West, no. 133800E, San Francisco, 2025. (Invited Paper)

5. K. Kawahara and T. Baba, “Accurate EO co-simulation of Si photonics using a standard electronic circuit simulator”, SPIE Photonics West, no. 133700E, San Francisco, 2025.

6. S. Nawa and T. Baba, “High throughput testing of Si photonics components using OFDR”, SPIE Photonics West, no. 1337104, San Francisco, 2025.

7. N. Tahara, S. Nawa, R. Taira, S. Suyama, K. Hirotani, Y. Megami, T. Tsuchizawa, N. Yamamoto, K. Yamada, and T. Baba, “High efficiency silicon photonics grating coupler compatible to standard foundry service”, SPIE Photonics West, no. 133710C, San Francisco, 2025.

8. T. Baba and K. Kawahara, “High efficiency optical transmitter including Si photonic crystal slow-light modulator co-designed with driver amplifier”, Optoelectronic Commun. Conf., Sapporo, no. TuD3-1, 2025. (Invited Paper)

9. K. Kawahara, T. Tsuchizawa, N. Yamamoto, Y. Maegami, K. Yamada, S. Hara, and T. Baba, “Optical transmitter with silicon slow-light modulator and BiCMOS current-mode driver achieving 0.78 pJ/bit total bit energy and 0.66 mm² footprint”, Optoelectronic Commun. Conf., no. PDP-B-1, Sapporo, 2025.

10. T. Baba and K. Kawahara, “Slow-light based modulator and transmitter”, SPIE Optics and Photonics, Active Photonic Platforms, no. 13578-40, San Diego, 2025. (Invited Paper)

11. K. Aoyama, M. Kamata, S. Hachuda, M. Kunii, T. Tamanuki, S. Ishida, H. Matsukiyo, N. Pholsen, M. Nishioka, S. Ji, H. Otsuki, K. Kimura, K. Takenaka, S. Onoda, T. Baba, S. Iwamoto, and H. Kosaka, “Adiabatic optical fiber coupling for diamond quantum nanophotonic devices”, Int. Workshop Quantum Information Eng., 2025.

12. M. Yoshioka, H. Kurokawa, Y. Sekiguchi, M. Kamata, S. Hachuda, M. Kunii, T. Tamanuki, S. Ishida, H. Matsukiyo, N. Pholsen, M. Nishioka, S. Ji, H. Otsuka, K. Kimura, K. Takenaka, S. Onoda, T. Baba, S. Iwamoto, and H. Kosaka, “Optical characterization of a diamond optomechanical crystal coupled to a SiN waveguide”, Int. Workshop Quantum Information Eng., Okinawa, 2025.

13. T. Baba, “Nanostructured photonic devices and circuits”, Micro-Optic Conf., Utsunomiya, 2025. (Plenary Talk)

14. T. Baba and K. Kawahara, “Photonic crystal slow-light modulator toward co-packaged optics”, Int. Sympo. Photon. Electromag. Crystal Structures, Glasgow, 2025. (Invited Paper)

15. K. Kawahara, T. Tsuchizawa, N. Yamamoto, Y. Maegami, K. Yamada, N. Nishiyama and T. Baba, “100-Gbaud Si photonic crystal modulator using electro-optic equalizer”, Int. Sympo. Photon. Electromag. Crystal Structures, Glasgow, 2025.

16. M. Kamata, T. Tamanuki, S. Yamazaki, R. Kuroda and T. Baba, “Realtime ranging, velocimetry, and vibrometer using Si photonics FMCW LiDAR chip with photonic crystal slow light grating beam scanner”, Int. Sympo. Photon. Electromag. Crystal Structures, Glasgow, 2025.

17. N. Tahara, S. Nawa, R. Taira, S. Suyama, K. Hirotani, Y. Maegami, T. Tsuchizawa, N. Yamamoto, K. Yamada and T. Baba, “Efficient metastructure grating coupler fabricated using Si photonics wafer process”, Int. Sympo. Photon. Electromag. Crystal Structures, Glasgow, 2025.

18. S. Nawa, M. Kamata and T. Baba, “Evaluation of Si photonics and photonic crystal waveguides using OFDR”, Int. Sympo. Photon. Electromag. Crystal Structures, Glasgow, 2025.

19. S. Nakamura and T. Baba, “Investigation of photonic nanostructures and devices with aperiodic monotile”, Int. Sympo. Photon. Electromag. Crystal Structures, Glasgow, 2025.

20. K. Sato, H. Kurokawa, Y. Sekiguchi, M. Kamata, S. Hachuda, M. Kunii, T. Tamanuki, S. Ishida, H. Matsukiyo, N. Pholsen, M. Nishioka, S. Ji, H. Otsuki, K. Kimura, K. Takenaka, S. Onoda, T. Baba, S. Iwamoto, and H. Kosaka, “Fiber-integrated diamond optomechanical crystal with embedded NV centers”, Quantum Innovation, Osaka, 2025.

21. K. Kawahara, T. Tsuchizawa, N. Yamamoto, Y. Maegami, K. Yamada, N. Nishiyama and T. Baba, “Frequency Response Shaping of Si Photonic Crystal Slow-Light Modulator Using Electro-Optic Equalizer”, Int. Sympo. Photonics and Electronics Convergence, Tokyo, 2025.