Presentations -
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Energy-Efficient Multiband Metro Network Emulator with Physical-Layer-Impairment-Aware Digital Twin
Takashi Miyamura, Satoru Okamoto, Masahiko Jinno, and Naoaki Yamanaka
[International presentation] The 2026 Optical Fiber Communications Conference and Exhibition (OFC2026),
2026.03 -
Ultralow-Nonlinearity THz Signal Transmission over PBG HCF for Low-Latency, High-Power Fiber–Wireless Links
Pham Tien Dat, Yuki Yoshida, Keizo Inagaki, Toshimasa Umezawa, Naokatsu Yamamoto, Atsushi Kanno, Tetsuya Kawanishi, Kouichi Akahane, Takeshi Takagi, Kazunori Mukasa, Satoru Okamoto, Hiroyuki Tsuda, and Naoaki Yamanaka
[International presentation] The 2026 Optical Fiber Communications Conference and Exhibition (OFC2026),
2026.03 -
Minimal-Hardware Single-WSS ROADM Enabling Contention-Less Optical 1+1 Protection with a Multi-Input-Port N×N WSS Employing Joint Switching
Ryunosuke Sasaki, Takuma Izumi, Takashi Miyamura, Satoru Okamoto, Naoaki Yamanaka, and Masahiko Jinno
[International presentation] The 2026 Optical Fiber Communications Conference and Exhibition (OFC2026),
2026.03 -
Keio university future photonic network open research center having very low delay hollow core fiber field and its application research
Naoaki Yamanaka
[International presentation] ICNC 2026,
2026.02 -
A Low-Power Consumption Metro Optical Network using Two-Node Cooperative Node Architecture
Satsuki Jimura, Takashi Miyamura, Satoru Okamoto, and Naoaki Yamanaka
[International presentation] The 6th IEICE-CS International Conference on Emerging Technologies for Communications (ICETC2025),
2025.11 -
Ultra-High Splitting Ratio Access Network With Optically Powered Amplifier Using a Hollow Core Fiber
M. Miyasugi, S. Kimura, Y. Seki, Y. Maetani, S. Okamoto, N. Yamanaka, M. Matsuura, T. Takagi, K. Mukasa, Z. Liu, and H. Tsuda
IEEE Photonics Conference,
2025.11 -
Low-delay and high-lineavty application in the campus network testbed using hollow-core faiber
Naoaki Yamanaka
ECOC2025,
2025.09,Oral presentation (invited, special)
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M3 Wavenet: Multiband Massive Wavelength-Multiplexing Metro Networks Enabling User Direct Wavelength Connection
Takashi Miyamura, Satoru Okamoto, Masahiko Jinno, and Naoaki Yamanaka
[International presentation] The 34th International Conference on Computer Communications and Networks (ICCCN 2025),
2025.08 -
Analog-RoF mobile fronthaul networking testbed in Keio future photonic network open lab
Kojiro Nishimura, Yoshihiko Uematsu, Satoru Okamoto, and Naoaki Yamanaka
[International presentation] iPOP2025,
2025.07 -
Power over fiber using Hollow-core fiber and its application on IoT-ONU
Naoaki Yamanaka, Satoru Okamoto, Hiroyuki Tsuda, Motoharu Matsuura and Kazinori Mukasa
[International presentation] ICTON 2025,
2025.07 -
Demonstration of Analog Radio-over-Fiber based Joint-Transmission Budgets Extension using Field-installed Hollow-Core Fiber Links
Kojiro Nishimura, Yoshihiko Uematsu, Satoru Okamoto, and Naoaki Yamanaka
[International presentation] OECC/PSC2025,
2025.06-2025.07 -
Resorce Efficency of Multiband Massive Wavelength－Multiplexing Netro Networks with Rremortly Located Transceivers
akashi Miyamura, Jun-iChi Kani, Shin Kaneko, Hideki Maeda、Satoru Okamoto, and Naoaki Yamanaka
[International presentation] OECC/PSC2025,
2025.06-2025.07 -
Feasibility Evaluation of Hollow-Core Photonic Bandgap Fiber Cables Deployed under Campus using Private 5G ober PON Applications
Satoru Okamoto, Naoaki Yamanaka, Hiroyuki Tsuda, Motoharu Matsuura, Takeshi Takagi, and Kazunori Mukasa
[International presentation] OECC/PSC2025,
2025.06-2025.07 -
Demonstration of high-power PON for higher split ratio and optical powering using a hollow-core fiber
H. Yamaji, N. Yamada, T. Takagi, K. Mukasa S. Okamoto, H. Tsuda, N. Yamanaka, M. Matsuura
[International presentation] 50th Optical Fiber Communication Conference and Exposition (OFC 2025),
2025.03-2025.04 -
超多分岐PON実現に向けた非等距離二芯化10G-EPONの動作実験
岡本聡, 石山貴大, 山中直明
[Domestic presentation] 2025年電子情報通信学会総合大会,
2025.03 -
Demonstration of high-power PON for higher split ratio and optical powering using a hollow-core fiber
H. Yamaji, N. Yamada, T. Takagi, K. Mukasa S. Okamoto, H. Tsuda, N. Yamanaka, M. Matsuura
50th Optical Fiber Communication Conference and Exposition (OFC 2025),
2025.03 -
Very-low-delay massive wavelength division multiplexed optical network using Newly structured hollow-core fiber and its application
Naoaki Yamanaka, Satoru Okamoto, Hiroyuki Tsuda, Takashi Miyamura,Motoharu Matsuura, Kazunori Mukasa
[International presentation] International Conference on Computing, Networking and Communications, (ICNC 2025),
2025.02,Oral presentation (invited, special)
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Trial of the External Electric Power Supply-Less IoT System Using Hollow Core Fiber
Takahiro Ishiyama, Takashi Kurimoto, SatoruOkamoto, Naoaki Yamanaka
[International presentation] International Conference on Computing, Networking and Communications, (ICNC 2025),
2025.02 -
Massive wavelength division network for ultra-low latency service using Hollow core fiber
Naoaki Yamanaka
[International presentation] 3rd International Conference and Expo on Lasers, Optics & Photonics (OPTICS2024),
2024.10,Oral presentation (keynote)
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Beyond 5G, Ultra-reliable and Low Latency Communication (URLLC)
Naoaki Yamanaka
[International presentation] 3rd Internatioal Conference and Expo on Lasers, Optics & Photonics,
2024.10,Oral presentation (invited, special)