Chiba Akito

Affiliation and department：

Research field (3)： Electronic devices and equipment , Communication and network engineering , Optical engineering and photonics

Research keywords (3)： Optical Measurement and Applied Optics , Optical Physics , Optical Communication

Research theme for competitive and other funds (11)：

2020 - 2024 Frequency downconversion and high-sensitivity measurement of millimeter-wave band RF signals with an assistance of optical two-tone signals
2018 - 2023 Optical Discrete Time-Frequency Transform for Ultrafast Communications
2020 - 2022 光干渉断層像の高速取得を実現する波長可変性の実証
2018 - 2022 Optical Subcarrier Processing for Nyquist SCM Signals using Four-Wave Mixing with Coherent Pumps
2015 - 2019 Optical time-frequency multiplexer for high-speed and high-density optical communication networks

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Papers (57)：

Takahide Sakamoto, Akito Chiba. Multiple-Frequency-Spaced and -Offset Flat Optical Comb Generation Using Multiple-Parallel Phase Modulator: Theory and Design. Journal of the Optical Society of America B. 2022. 39. 6. 1644-1654
Akito Chiba, Yosuke Akamatsu. (Feature Paper selected by Editors) Wavelength-Tunable Optical Two-Tone Signals Generated Using Single Mach-Zehnder Optical Modulator in Single Polarization-Mode Sagnac Interferometer. Photonics (MDPI). 2022. 9. 3. 194-1-194-12
Akito Chiba, Yusuke Sunaga. Complex amplitude estimation of monochromatic radio-frequency signal using frequency down conversion via direct detection of interfered optical phase-modulation signals. Optics Letters. 2021. 46. 11. 2646-2649
Takahide Sakamoto, Akito Chiba. Multiple-frequency-spaced flat optical comb generation using a multiple-parallel phase modulator. Optics Letters. 2017. 42. 21. 4462-4465
Akito Chiba, Yosuke Akamatsu, Kazumasa Takada. Long-term stable 60 GHz optical two-tone signal by destructive optical interference obtained from RF phase adjustment. Electronics Letters. 2016. 52. 9. 736-737

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MISC (74)：

A. Chiba. RF Parameter Estimation Using Lightwave Modulation (INVITED). Proc. 12th Conf. Communications, Circuits, and Systems 2023 (ICCCAS2023). 2023
Akito Chiba, Yusuke Sunaga. RF signal estimation utilizing low-frequency beat signal due to harmonics of phase-modulation lightwave. Proc. 15th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR2022). 2022. P-CTh6-05-1-P-CTh6-05-2
Takahide Sakamoto, Akito Chiba. Multi-Frequency-Spaced Optical Comb Generation by Superposition of Purely Deeply Phase-Modulated Lights. 2021 IEEE Photonics Conference (IPC). 2021. WC4.3-1-WC4.3-2
Akito. Chiba, Takahide Sakamoto. Double frequency-spacing optical comb generation based on I-Q optical modulation (INVITED). Proc. International Conference on Technology and Social Science 2019 (ICTSS 2019). 2019
Akito Chiba, Yosuke Akamatsu, Kazumasa Takada. Sextupled frequency-spacing optical two-tone signals using selective polarization-rotation by a negative-index modulation (INVITED). Proc. International Conference on Sensor Networks and Signal Processing (SNSP 2018). 2018

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Patents (9)：

光波長変換方法および光波長変換装置
バイアス点調整機能を有する光変調器及びスイッチ
バイアス点調整が可能な複数のマッハツェンダー構造を有する光変調器
光干渉トモグラフィー装置、光形状計測装置
直交振幅変調信号発生装置

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Lectures and oral presentations (81)：

電気光学効果を用いた光位相変調によるRFパラメータ計測の提案と実証
(電子情報通信学会光エレクトロニクス(OPE)研究会 2019)
2 電極型単一MZM を用いた光変調によるRF位相計測
(Optics and Photonics Japan 2017 (OPJ2017) 2017)
偏光操作を用いる光2トーン信号生成における安定性の向上
(第63回応用物理学関係連合講演会 2016)
変調度が異なる光波の合成と偏光操作により抽出された高次光側帯波の評価
(電子情報通信学会光エレクトロニクス(OPE)研究会 2016)
光側帯波の偏光操作による6逓倍信号の生成
(第62回応用物理学会春季学術講演会 2015)

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Education (3)：

2002 - 2005 Hokkaido University Graduate School of Engineering Ph. D. Course
2000 - 2002 Hokkaido University Graduate School of Engineering Master Course
- 2000 Hokkaido University School of Engineering Electric and Precision Engineering

Professional career (3)：

Master of Engineering (Hokkaido University)
Bachelor of Engineering (Hokkaido University)
Ph. D. (Hokkaido University)

Work history (7)：

2022 - 現在 Faculty of Science and Technology, Gunma University Department of Electronics and Informatics Associate Professor
2013 - 2022 Faculty of Science and Technology, Gunma University Department of Electronics and Informatics Assistant Professor
2014 - 2020 National Institute of Information and Communications Technology
2018 - 2018 Univ. of California, Los Angeles Visiting Scholar
2011 - 2013 Gunma University Graduate school of Engineering Assistant Professor

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Committee career (1)：

2015/04 - 2016/09 一般社団法人電気学会平成28年電気学会産業応用部門大会実行委員(理科教室担当)

Awards (2)：

2020/10 - 24th Yokoyama Award http://www.st.gunma-u.ac.jp/yaward/news/news2020101601.html
2000/03 - Faculty of Engineering, Hokkaido University Prof. Yoshimachi Memorial award

Association Membership(s) (5)：

Optica , The Institute of Electronics, Information and Communication Engineers , Optical Society of Japan , IEEE Photonics Society , Japan Society of Applied Physics

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