Updated on 2025/06/01

写真a

 
KUNO Takuma
 
Organization
Graduate School of Engineering Information and Communication Engineering 1 Assistant Professor
Undergraduate School
School of Engineering Electrical Engineering, Electronics, and Information Engineering
Title
Assistant Professor

Research History 1

  1. Nagoya University   Graduate School of Engineering, Department of Information and Communication Engineering   Assistant Professor

    2025.4

To the head of Research History.▲

Education 1

  1. Nagoya University   Graduate School of Engineering   Department of Information and Communication Engineering

    - 2025.3

    　 More details

    Country： Japan

To the head of Education.▲

Awards 14

  1. Excellent Student Award for Doctoral Program

    2024.3   IEEE Nagoya Section  

    Takuma Kuno

  2. 第39回電気通信普及財団賞 テレコムシステム技術学生賞

    2024.3   公益財団法人電気通信普及財団  

    久野 拓真

  3. PN研学生奨励賞

    2024.3   電子情報通信学会 フォトニックネットワーク研究会  

    久野 拓真

  4. Best Student Paper Award

    2023.3   International Conference on Photonics in Switching and Computing   4.71-Pbps-throughput Multiband OXC Based on Space- and Wavelength-granular Hybrid Switching

    Takuma Kuno

  5. PN研究賞

    2023.3   電子情報通信学会 フォトニックネットワーク研究会

    久野 拓真, 三ツ矢 拓誠, 森 洋二郎, 長谷川 浩, 佐藤 健一

  6. English Session Award of NS Committee

    2022.10   Technical Committee on Network Systems, IEICE  

    Takuma Kuno

  7. Excellent Student Award for Master's Program

    2022.3   IEEE Nagoya Section  

    Takuma Kuno

  8. 優秀賞

    2022.3   電子情報通信学会フォトニックネットワーク研究会 学生ワークショップ  

    久野 拓真

  9. 原島博学術奨励賞

    2021.6   公益財団法人 電気電子情報学術振興財団  

    久野 拓真

  10. Nagoya Section Conference Presentation Award

    2021.3   IEEE Nagoya Section  

    Takuma Kuno

  11. 第7回JPNデザインコンテスト優秀賞

    2021.3   電子情報通信学会 フォトニックネットワーク研究会  

    久野 拓真

  12. 学生研究奨励賞

    2020.6   電子情報通信学会 東海支部  

    久野 拓真

  13. Best Paper Award

    2020.5   IEEE International Conference on Photonics   A 2.15 Pbps Throughput Optical Cross-connect with Flexible Waveband Routing

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

  14. Best Student Paper Award

    2020.5   International Conference on Optical Network Design and Modeling   High-throughput and High-port-count Optical Cross-connects Using Flexible Waveband Routing

    Takuma Kuno

▼display all

To the head of Awards.▲
 

Papers 30

  1. Analytical and numerical hybrid capacity estimation method for multi-band elastic optical networks Reviewed

    Shunya Shimoi, Hayato Yuasa, Takuma Kuno, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa

    Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIV     page： 10 - 10   2025.3

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：SPIE  

    DOI： 10.1117/12.3043304

  2. Infinitely scalable modular OXC node architecture with sparse and regular intra-node interconnection Reviewed

    Atsuki Wada, Takuma Kuno, Yojiro Mori, Wakako Maeda, Shigeyuki Yanagimachi, Hiroshi Hasegawa

    Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIV     page： 25 - 25   2025.3

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：SPIE  

    DOI： 10.1117/12.3044158

  3. EEPN mitigation by local oscillator phase isolation with dual pilot carriers Reviewed

    Taisei Sekizuka, Takuma Kuno, Reiji Higuchi, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa

    Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIV     2025.3

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：SPIE  

    DOI： 10.1117/12.3040642

  4. Demonstration of Multigranular-Routing Layered Network with Impairment-Aware Modulation Format Selection Reviewed

    Hayato Yuasa, Takuma Kuno, Taisei Sekizuka, Yojiro Mori, Shi-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Wakako Maeda, Shigeyuki Yanagimachi, Hiroshi Hasegawa

    Optical Fiber Communication Conference     2025.3

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1364/OFC.2025.Tu2H.2

  5. Three-Stage Optical Circuit Switch Architectures for Intra-Datacenter Networking Reviewed

    Takumi Mitsuya, Reiji Higuchi, Takuma Kuno, Takuro Ochiai, Hayato Yuasa, Yojiro Mori, Hiroshi Hasegawa

    Journal of Lightwave Technology   Vol. 43 ( 2 ) page： 400 - 407   2025.1

    　More details

    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1109/JLT.2024.3465208

  6. 11,520×11,520 Optical Circuit Switch for Intra- and Inter-datacenter Converged Networks Reviewed

    T. Kuno, Y. Mori, H. Hasegawa

    2024 IEEE Photonics Conference (IPC)     2024.11

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/ipc60965.2024.10799666

  7. Robustness of Adaptive Symbol Decision against Transmitter Impairments on GS-QAM Signals Reviewed

    T. Sekizuka, T. Kuno, R. Higuchi, Y. Mori, H. Hasegawa

    2024 IEEE Photonics Conference (IPC)     page： 1 - 2   2024.11

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/ipc60965.2024.10799689

  8. Laser-frequency Transition Measurement Using Coherent Receivers with Coded Local Oscillators Reviewed

    K. Kagawa, T. Kuno, R. Higuchi, Y. Mori, H. Hasegawa

    2024 IEEE Photonics Conference (IPC)     page： 1 - 2   2024.11

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/ipc60965.2024.10799719

  9. Demonstration of Low-Complexity Digital Coherent Receivers for Intra-Datacenter Networks Reviewed

    Takuma Kuno, Takumi Mitsuya, Yojiro Mori, Hiroshi Hasegawa

    2024 IEEE Photonics Society Summer Topicals Meeting Series (SUM)     page： 01 - 02   2024.7

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/sum60964.2024.10614568

  10. Experimental Demonstration of NN-based Symbol Decision to Mitigate Transmitter Impairments Reviewed

    Taisei Sekizuka, Takuma Kuno, Reiji Higuchi, Takuro Ochiai, Yojiro Mori, Hiroshi Hasegawa

    Opto-Electronics and Communications Conference     2024.7

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)  

  11. Digital Coherent Receiver Enabling Nyquist Wavelength Demultiplexing Under Frequency Offset and Receiver-Side IQ Impairments Reviewed

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    Journal of Lightwave Technology   Vol. 42 ( 5 ) page： 1409 - 1422   2024.3

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Institute of Electrical and Electronics Engineers (IEEE)  

    DOI： 10.1109/jlt.2023.3327267

  12. Intra-datacenter Optical Circuit Switch Architecture with Multi-band Transmission Technologies Reviewed

    Takuma Kuno, Reiji Higuchi, Kazato Satake, Hayato Yuasa, Yojiro Mori, Hiroshi Hasegawa

    Optical Fiber Communication Conference (OFC) 2024     page： M2G.3 - M2G.3   2024

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Optica Publishing Group  

    This paper proposes an optical circuit switch architecture using multi-band transmission. We experimentally confirmed the performance of 1,280×1,280 switch with 32-Gbaud dual-polarization QPSK signals aligned on 33-GHz grid in the C- and L- bands.

    DOI： 10.1364/ofc.2024.m2g.3

  13. Experimental Demonstration of 128×128 Optical Cross-connects with 2.45 Pbps Throughput Reviewed

    Takuro Ochiai, Takuma Kuno, Yojiro Mori, Ryuji Munakata, Yojiro Mori, Shi-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa

    European Conference on Optical Communication     2023.10

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1049/icp.2023.2536

  14. Wavelength Division Demultiplexing of Nyquist WDM Signals under Frequency Offset and Receiver-side IQ Impairments Reviewed

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    European Conference on Optical Communication     2023.10

    　More details

    Authorship：Lead author,　Corresponding author  

    DOI： 10.1049/icp.2023.2583

  15. 4.71-Pbps-Throughput Multiband OXC Based on Space- and Wavelength-Granular Hybrid Switching Reviewed

    Takuma Kuno, Takuro Ochiai, Reiji Higuchi, Kazato Satake, Kenji Cruzado, Ryuji Munakata, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa

    2023 International Conference on Photonics in Switching and Computing (PSC)     page： 1 - 3   2023.9

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/psc57974.2023.10297168

  16. Transceiver-Impairment Mitigation Enabled by Adaptive Symbol Decision with Neural Networks Reviewed

    Takuro Ochiai, Reiji Higuchi, Takuma Kuno, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa

    2023 International Conference on Photonics in Switching and Computing (PSC)     page： 1 - 3   2023.9

    　More details

    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/psc57974.2023.10297285

  17. Modulation and Demodulation Method Robust Against Laser Phase Noise Reviewed

    Reiji Higuchi, Takuma Kuno, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa

    2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)     page： 1 - 1   2023.6

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/cleo/europe-eqec57999.2023.10232126

  18. Architecture and Performance Evaluation of Bundled-path-routing Multi-band Optical Networks Reviewed

    Ryuji Munakata, Takuma Kuno, Yojiro Mori, Shih-Chun Lin, Motoharu Matsuura, Suresh Subramaniam, Hiroshi Hasegawa

    Optical Fiber Communication Conference (OFC) 2023     page： M4G.8 - M4G.8   2023

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：Optica Publishing Group  

    We propose a novel bundled-path-routing node architecture for multi-band optical networks and a network design algorithm based on graph degeneration. Feasibility is demonstrated through experiments on a prototype with 300.8 Tbps throughput.

    DOI： 10.1364/ofc.2023.m4g.8

  19. Highly Reliable and Large-scale Optical Switch for Intra-datacentre Networks Reviewed

    Takumi Mitsuya, Takuro Ochiai, Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    European Conference on Optical Communication     2022.9

    　More details

    Language：English  

  20. Optical Performance Monitoring Using Adaptive FIR Filters for Constellation-Shaped Higher-Order QAM Signals Reviewed

    Naoki Tsuchida, Takuma Kuno, Jun Sakano, Yoiiro Mori, Hiroshi Hasegawa

    2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC)     page： 1 - 3   2022.7

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.23919/oecc/psc53152.2022.9849979

  21. Measurement method of transmitter IQ imbalance in digital coherent communication systems Reviewed

    Naoki Tsuchida, Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    Metro and Data Center Optical Networks and Short-Reach Links V     page： 12 - 12   2022.3

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：SPIE  

    DOI： 10.1117/12.2609376

  22. Design and evaluation of a reconfigurable optical add-drop multiplexer with flexible wave-band routing in SDM networks Reviewed

    Takuma Kuno, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa

    Journal of Optical Communications and Networking   Vol. 14 ( 4 ) page： 248 - 248   2022.2

    　More details

    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Optica Publishing Group  

    Space-division multiplexing (SDM) is expected to increase the capacity of photonic networks. Reconfigurable optical add-drop multiplexers (ROADMs) for SDM-based networks must have high scalability in terms of port count. However, the ROADM architecture adopted in present networks cannot support large numbers of ports due to the limited port count of wavelength-selective switches. In this paper, we propose a ROADM architecture composed of space switches and wavelength-routing switches. Space switches have lower per-port cost than wavelength-routing switches. However, space switches cannot route optical paths on a wavelength basis, unlike wavelength-routing switches. By combining these two types of switches, the ROADM port count can be cost-effectively expanded virtually unlimitedly. Numerical simulations show the routing performance of our ROADM; they elucidate that the maximum fiber increment penalty is about 5% compared to the reference scheme. Experiments detail the transmission performance of the ROADM, where 32 Gbaud DP-4QAM/8QAM/16QAM signals are aligned on a 50 GHz grid, are examined.

    DOI： 10.1364/jocn.450504

  23. Demonstration of High-Throughput Intra-Datacenter Switches Using Interleaved AWGs for Nyquist WDM Reviewed

    Takuma Kuno, Takumi Mitsuya, Yojiro Mori, Hiroshi Hasegawa, Ken-ichi Sato

    Optical Fiber Communication Conference (OFC) 2022     page： Th3A.2 - Th3A.2   2022

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：Optica Publishing Group  

    We demonstrate a high-throughput optical circuit switch for intra-datacenter networks. DP-32QAM and Nyquist WDM are used to enhance the spectral efficiency of the switch. Experiments show the total switch throughput of 8.512 Pbps.

    DOI： 10.1364/ofc.2022.th3a.2

  24. Evaluation of low-complexity digital coherent receivers for short-reach transmission systems Reviewed

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    Metro and Data Center Optical Networks and Short-Reach Links IV     page： 9 - 9   2021.3

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：SPIE  

    DOI： 10.1117/12.2577542

  25. Experimental Evaluation of Optical Cross-Connects with Flexible Waveband Routing Function for SDM Networks Reviewed

    Takuma Kuno, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa

    Optical Fiber Communication Conference (OFC) 2021     page： Th4E.3 - Th4E.3   2021

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：Optica Publishing Group  

    We experimentally evaluate the transmission performance of OXC structures based on flexible-waveband routing. 1600 km, 700 km, and 600 km transmission is demonstrated using 32 Gbaud DP-QPSK, DP-8QAM, and DP-16QAM on 37.5 GHz grid, respectively.

    DOI： 10.1364/ofc.2021.th4e.3

  26. Measurement of Transmitter IQ Skew in High-Speed Digital Coherent Communication Systems Reviewed

    Naoki Tsuchida, Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    26th Optoelectronics and Communications Conference     page： T4B.7 - T4B.7   2021

    　More details

    Publishing type：Research paper (international conference proceedings)   Publisher：Optica Publishing Group  

    We propose a novel method for measuring transmitter IQ skew. Numerical simulations show that its measurement error is less than 0.1% in the presence of the other IQ impairments. Proof-of-concept experiments confirm its effectiveness.

    DOI： 10.1364/oecc.2021.t4b.7

  27. Low-Complexity DSP Configuration for Short-Reach Transmission Systems Reviewed

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    2020 Opto-Electronics and Communications Conference (OECC)     page： 1 - 3   2020.10

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/oecc48412.2020.9273542

  28. Low-Complexity Digital Coherent Receivers for Short-Reach Transmission Systems Reviewed

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    2020 IEEE Photonics Conference (IPC)     page： 1 - 2   2020.9

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/ipc47351.2020.9252306

  29. A 2.15 Pbps Throughput Optical Cross-Connect with Flexible Waveband Routing Reviewed

    Takuma Kuno, Yojiro Mori, Hiroshi Hasegawa

    2020 IEEE 8th International Conference on Photonics (ICP)     page： 28 - 29   2020.5

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.1109/icp46580.2020.9206471

  30. High-Throughput and High-Port-Count Optical Cross- Connents Using Flexible Waveband Routing Reviewed

    Takuma Kuno, Yojiro Mori, Suresh Subramaniam, Masahiko Jinno, Hiroshi Hasegawa

    2020 International Conference on Optical Network Design and Modeling (ONDM)     page： 1 - 6   2020.5

    　More details

    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    DOI： 10.23919/ondm48393.2020.9133005

▼display all

To the head of Papers.▲

KAKENHI (Grants-in-Aid for Scientific Research) 1

  1. ペタビット超級光ファイバネットワーク実現に向けた光ノードの開発

    Grant number：22KJ1614  2022.4 - 2025.3

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    久野 拓真

    　 More details

    Authorship：Principal investigator 

    Grant amount：\2500000 （ Direct Cost: \2500000 ）

    本研究では，高次多値変調技術及び空間分割多重技術に対応する大容量光ノードの構築を目的としている．令和5年度は具体的に以下の２つの目標を掲げて研究を実施した．
    目標１：高密度波長分割多重信号及びディジタルサブキャリア多重システムに対応する光受信器構成の開発
    目標２：空間分割多重及び高密度波長分割多重を活用した光スイッチの開発
    <BR>
    目標１に関しては，ナイキスト波長分割多重システムで生じる信号品質劣化要因を完全に補償する新たな信号処理手法を提案し，さらにその手法を実現する光受信器を考案した．なお，本光受信器はナイキスト波長分割多重システムに対して提案したものであるが，同様の課題を有するディジタルサブキャリア多重システムに対しても有効である． 目標２に関しては，空間分割多重，高密度波長分割多重，およびマルチバンド伝送技術を活用したデータセンタ向け光スイッチを提案した．本光スイッチは，従来の波長帯域であるC帯に加え，未使用の波長帯域を利用可能とするように構成されており，使用波長帯域の拡張によりスループットを向上することができる．提案する光スイッチの試作機を用いた実証実験では12.54Pbpsのスループットを実現可能であることを示した． さらに，上記の２つの目標とは別に，光ネットワークにおける光交換器の研究を推進した．従来の光交換器の実現可能ポート数は，光交換器の構成要素である波長選択スイッチや光スプリッタの有する物理的な特性により，数十ポート程度が限界となっていた．対して，現在研究で取り組んでいる波長群粒度ルーティングを用いた新たな光交換器構成法を用いれば，その物理的制約を回避し，大規模光交換器を構築することが可能となる．伝送実験では，128×128の入出力を有する光交換器の試作機を構築し，実現可能性を評価した．

To the head of KAKENHI (Grants-in-Aid for Scientific Research).▲

Industrial property rights 2

  1. 信号処理回路、ディジタルコヒーレント受信器及びディジタルコヒーレント通信システム

    森洋二郎, 久野 拓真, 長谷川浩, 石川誉聡

    　More details

    Application no：特願2023-049684  Date applied：2023.3

  2. 信号処理回路、ディジタルコヒーレント受信器及びディジタルコヒーレント通信システム

    森 洋二郎, 長谷川 浩, 久野 拓真, 白木 隆太

    　More details

    Patent/Registration no：特許7680006  Date registered：2025.5 

To the head of Industrial property rights.▲