Keio Future Photonic Network Open Lab
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Keio Future Photonic Network Open Lab
An open lab at Keio University that freely provides access to cutting-edge optical technologies and promotes exploratory research.
🔷Overview🔷

This lab promotes research and development of advanced optical transmission technologies contributing to a green society, under the Ministry of Internal Affairs and Communications project, “Research and Development of Advanced Optical Transmission Technologies for a Green Society,” Theme II: Large-capacity and highly multiplexed optical access network transmission technologies.
The lab serves as a CoE (Center of Excellence) for optical access and metro technologies toward 2030. As an open laboratory where domestic and international institutions including academics can conduct experiments, it provides functions to foster application expansion, deployment, and open innovation.
It is equipped with 400Gbps optical access systems (initially 100Gbps) including PON/OLT/ONU, and is also planned to support the world’s first hollow-core fiber (a photonic crystal fiber with an air core and structured cladding).
A local 5G experimental station has already been established at the K2 Town Campus for the first time within Keio University, creating an environment that can be utilized by many research groups.
In fiscal year 2024, we plan not only to focus on ultra-multiwavelength access systems, but also to take on the challenge of power-over-fiber (PoF) with IoT applications in mind, while simultaneously initiating research on energy-harvesting IoT systems.
In fiscal year 2025, in collaboration with the University of Texas at Dallas (UTD), we are developing a global open laboratory. The lab will invite academia and industry from Japan and abroad to conduct collaborative research.
To support this, a local 5G network will be deployed to enable collaboration with autonomous driving, AGVs, and robotics, forming the core of the center’s operations.
🔷Next-Generation Access Network Concept🔷

▶Flexible PON: It can provide the optimal bandwidth at high speed with low power consumption, tailored to the user’s desired services and bandwidth requirements. To achieve this, research on new optical transceivers (capable of dynamically adjusting rates and wavelengths) is necessary.
▶Ultra-high split technology: Rather than conventional residential use, it supports a wide range of composite use cases, including sensors, IoT, mobile backhaul, and cloudlet data center access.

Research Topics1
大容量光アクセス網伝送技術

Research Topics2
高多重光アクセス網基盤技術

Research Topics3
フィールドとPoCシステムの開発

Research Topics4
RoF(Radio over Fiber)技術の研究

Research Topics5
PWoF(Power over Fiver)とその応用の研究
News & Information
- 慶應義塾大学山中研究室は、大阪堺市、iGRID株式会社と連携研究協定を締結しました。太陽光発電による余剰電力を堺市の施設で利用しリアルタイムトレーサビリティに関する実証を開始します。慶應義塾大学山中研究室は、大阪府堺市およびiGRID株式会社と連携研究協定を締結し、実証実験を開始しました。本研究では、太陽光発電による余剰電力を堺市内の施設で利用する際のリアルタイム・トレーサビリティに関する実証に取り […]
- 小型IoT技術の宇宙適用を目指して慶應義塾と共同研究を行っているOA研究所がSPEXA2026に展示します慶應義塾大学は、光アクセスネットワークの高度化のために、多数のIoTをサポートする光給電のユーザ装置(ONU)の小型化、省電力化の研究を進めてきました。このIoT用のONUは、電気線による給電なしに、人物等の侵入を検出し […]
- 科学技術振興機構(JST)_【ASPIRE】公募が開始されました科学技術振興機構(JST)_【ASPIRE】公募が開始されました。 ASPIRE(アスパイア)とは?・世界のトップ科学者層とのネットワーク構築・未来を決める国際的なトップ研究コミュニティへの参画・将来持続的に世界で活躍で […]
- 山中研の最後の学生が、社会に羽ばたきました。
- 2026/2/26開催 第2回慶應未来光ネットワークオープン研究センター公開シンポジウム「グリーン光ネットワークの最先端と未来 」シンポジウムは終了しました。皆様のご参加ありがとうございました。 ~ 第2回慶應未来光ネットワークオープン研究センター公開シンポジウム「グリーン光ネットワークの最先端と未来」のお知らせ~ APN(All光ネットワーク)や […]
We have started experiments on an ultra-low-latency network campus.(English version is here.)
This is an introduction video for the Yamanaka Laboratory.
This is an interview video by NICT.
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