Chao Zhang
| Faculty of Engineering Department of Electrical and Electronic Engineering | Associate Professor |
Career
- Apr. 2025 - Present
Kogakuin University, Faculty of Engineering, Associate Professor - Apr. 2023 - Present
The University of Tokyo - Mar. 2021 - Mar. 2025
Shimane University, Interdisciplinary Faculty of Science and Engineering Department of Mechanical,Electrical and Electronic Engineering, Assistant Professor - Oct. 2021 - Mar. 2024
Japan Science and Technology Agency, ACT-X Researcher - Apr. 2021 - Mar. 2023
The University of Tokyo, Research Center for Advanced Science and Technology - Apr. 2020 - Mar. 2021
The University of Tokyo, Research Center for Advanced Science and Technology, Project Researcher - Apr. 2019 - Mar. 2020
The University of Tokyo, The Graduate School of Engineering - Sep. 2019 - Sep. 2019
University of Cambridge - Apr. 2019 - Aug. 2019
メカノトランスフォーマー - Apr. 2016 - Mar. 2019
Anritsu Corporation, Engineer - Feb. 2013 - Feb. 2016
Nanyang Technological University, Research Associate - Jun. 2012 - Feb. 2013
The University of Tokyo, The Graduate School of Engineering - Apr. 2010 - Mar. 2012
Japan Society for the Promotion of Science, Research Fellow - Apr. 2009 - Mar. 2010
The University of Tokyo, The Graduate School of Engineering
Educational Background
- Apr. 2017 - Mar. 2020
The University of Tokyo, The Graduate School of Engineering, Department of Advanced Interdisciplinary Studies - Sep. 2019 - Sep. 2019
University of Cambridge - Apr. 2007 - Mar. 2009
The University of Tokyo, The Graduate School of Engineering, Department of Electronic Engineering - Apr. 2003 - Mar. 2007
Okayama University, Faculty of Engineering - Aug. 2005 - Sep. 2005
Southern Oregon University
Research Field
Paper
- Geohydrological monitoring of slope using advanced distributed fibre-optic sensing: from laboratory study to field applications
A. Acharya; D. Tanimura; C. Zhang; F. Ito; T. Sakaki; M. Komatsu; I. Doi; T. Kogure
EUROENGEO, Oct. 2024, [Reviewed] - Assessing water position through distributed temperature sensing using Rayleigh-based optical frequency-domain reflectometry: a laboratory feasibility study
Ashis Acharya; Daiki Tanimura; Chao Zhang; Fumihiko Ito; Toshihiro Sakaki; Mitsuru Komatsu; Issei Doi; Tetsuya Kogure
Canadian Geotechnical Journal, 25 Jun. 2024, [Reviewed] - Long range static and dynamic strain measurement by using phase-noise-compensated OFDR
Ryota Ogu; Daiki Tanimura; Chao Zhang; Fumihiko Ito; Yuichi Yoshimura; Hiroyuki Aoshika; Michio Imai
International Conference on Optical Fiber Sensors (OFS), May 2024, [Reviewed]
Corresponding - Exploring the Potential of Light Detection and Ranging for Society 5.0 (Invited)
C. Zhang; A. Nakamura
OPTICS & PHOTONICS International Congress (OPIC), Apr. 2024, [Reviewed], [Invited]
Lead, Corresponding - 110-m range, 600-Hz refresh rate dynamic strain measurement by using phase-noise-compensated OFDR
R. Ogu; D. Tanimura; C. Zhang; F. Ito; Y. Yoshimura; H. Aoshika; M. Imai
International Conference on Optical Fiber Sensors (OFS), Nov. 2023, [Reviewed] - Dynamic strain sensing application with rapid OFDR for pavement health monitoring
Y. Yoshimura; A. Nasu; H. Nagatani; M. Imai; D. Tanimura; R. Ogu; C. Zhang; F. Ito
International Conference on Optical Fiber Sensors (OFS), Nov. 2023, [Reviewed] - Over 1 km large strain measurement with 70+ times range expansion by using phase-noise compensated OFDR
D. Tanimura; R. Ogu; C. Zhang; F. Ito; Y. Yoshimura; H. Aoshika; M. Imai
International Conference on Optical Fiber Sensors (OFS), Nov. 2023, [Reviewed] - Two-dimensional linear optical sampling for ultrafast spatial mode analysis
S. Okamura; K. Osawa; C. Zhang; F. Ito; A. Nakamura; Y. Koshikiya
European Conference on Optical Communication (ECOC), Oct. 2023, [Reviewed] - Long-range frequency-modulated continuous-wave LiDAR employing wavelength-swept optical frequency comb
Chao Zhang; Takahiro Nagata; Muhammad Suhail Bin Ahmad Sharifuddin; Fumihiko Ito; Atsushi Nakamura; Yusuke Koshikiya
Optics Communications, Oct. 2023
Lead, Corresponding - Optical fiber reflectometry detecting static and dynamic Rayleigh spectra (Invited)
Chao Zhang; Fumihiko Ito; Yuichi Yoshimura
Measurement Science and Technology, 17 Jul. 2023, [Invited]
Lead, Corresponding - Bandwidth-Decomposed Analysis of Spatial-Mode Dispersion of Coupled 2-Core Fiber Employing Linear Optical Sampling
Masafumi Uyama; Shuki Okamura; Chao Zhang; Fumihiko Ito; Atsushi Nakamura; Tatsuya Okamoto; Yusuke Koshikiya
Journal of Lightwave Technology, 15 May 2023 - Ultrafast measurement of vector spatial modes by using two-dimensional linear optical sampling
Shuki Okamura; Kyogo Osawa; Chao Zhang; Fumihiko Ito; Atsushi Nakamura; Yusuke Koshikiya
Optics Letters, 03 May 2023 - Two-dimensional linear optical sampling for ultrafast observation of fiber spatial mode
S. Okamura; K. Osawa; C. Zhang; F. Ito; A. Nakamura; Y. Koshikiya
7th International Symposium on Extremely Advanced Transmission Technologies (EXAT), May 2023, [Reviewed] - Long-range frequency-modulated continuous-wave LiDAR employing wavelength-swept optical frequency comb with ranging disambiguation
Muhammad Suhail Bin Ahmad Sharifuddin; Takahiro Nagata; Chao Zhang; Fumihiko Ito; Atsushi Nakamura; Yusuke Koshikiya
Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVII, 18 Apr. 2023
Corresponding - Measurement of Complex Waveforms in Wide Wavelength Range by Using Wavelength-Swept Light Source and Linear Optical Sampling
Sougo SHIMIZU; Chao ZHANG; Fumihiko ITO
IEICE Transactions on Communications, 01 Jul. 2022 - Overall Non-Mechanical Spectrally Steered LiDAR Using Chirped Amplitude-Modulated Phase-Shift Method
Zheyuan Zhang; Chao Zhang; Takuma Shirahata; Shinji Yamashita; Sze Y. Set
Journal of Lightwave Technology, 01 Apr. 2022 - Recent progress of fiber diagnostic technologies for optical fiber networks: Distributed fiber sensing and fiber characterization (Invited)
Chao Zhang; Fumihiko Ito
Metro and Data Center Optical Networks and Short-Reach Links V, 04 Mar. 2022, [Reviewed], [Invited]
Lead, Corresponding - Long range, wide bandwidth, and rapid optical frequency domain reflectometry employing concatenative referencing method
Daiki Tanimura; Daiki Miyake; Chao Zhang; Fumihiko Ito; Yuichi Yoshimura; Hiroyuki Aoshika; Michio Imai
27th International Conference on Optical Fiber Sensors, 2022 - Novel Data-Processing Method for High-Resolution Spectrally Steered LiDAR using Dispersion-Tuned Swept Laser
Zheyuan Zhang; Chao Zhang; Takuma Shirahata; Shinji Yamashita; Sze Y. Set
Conference on Lasers and Electro-Optics, 2022 - Wideband Impulse Response Measurement of Coupled 2-Core Fibers of Various Lengths employing Dual-Comb Coherent Sampling
Masafumi Uyama; Masaki Uno; Shuki Okamura; Chao Zhang; Fumihiko Ito; Atsushi Nakamura; Tatsuya Okamoto; Yusuke Koshikiya
Optical Fiber Communication Conference (OFC) 2022, 2022 - Effect of the time axis accuracy on mode‑dependent loss measurement by using linear optical sampling
M. Uyama; M. Uno; C. Zhang; F. Ito; A. Nakamura; T. Okamoto; Y. Koshikiya
International Symposium on Extremely Advanced Transmission Technologies (EXAT), Nov. 2021, [Reviewed] - Amplitude-modulated continuous-wave laser rangefinder employing Bessel–Gauss beamforming
Chao Zhang; Zheyuan Zhang; Sifan Liu; Lei Jin; Yohei Sugiura; Sze Yun Set; Shinji Yamashita; Fumihiko Ito
Applied Optics, 20 Aug. 2021
Lead - Chirped amplitude‑modulated phase shift method based overall non‑mechanical 1‑D spectrally scanned LiDAR
Z. Zhang; C. Zhang; T. Shirahata; S. Yamashita; S. Y. Se
Aug. 2021, [Reviewed] - Recent trends in coherent free-space optical communications (Invited)
Chao Zhang; Kota Uyama; Zheyuan Zhang; Lei Jin; Sze Yun Set; Shinji Yamashita
Metro and Data Center Optical Networks and Short-Reach Links IV, 05 Mar. 2021, [Reviewed], [Invited]
Lead, Corresponding - Comprehensive Ranging Disambiguation for Amplitude-Modulated Continuous-Wave Laser Scanner With Focusing Optics
Chao Zhang; Zheyuan Zhang; Yuchen Tian; Sze Yun Set; Shinji Yamashita
IEEE Transactions on Instrumentation and Measurement, 2021
Lead, Corresponding - Enhancement in Dynamic Range of Amplitude-Modulated Continuous-Wave Laser Scanner Having a Coaxial Configuration
Chao Zhang; Sze Yun Set; Shinji Yamashita
IEEE Transactions on Instrumentation and Measurement, 2021
Lead, Corresponding - Pilot demonstration of correlation-domain distributed temperature sensing using forward Brillouin scattering
Neisei Hayashi; Yosuke Mizuno; Kentaro Nakamura; Chao Zhang; Lei Jin; Sze Yun Set; Shinji Yamashita
Japanese Journal of Applied Physics, 21 Jul. 2020 - Polarization-Insensitive Laser Scanning and Profiling Using Amplitude-Modulated CW Scheme
Chao Zhang; Sifan Liu; Neisei Hayashi; Sze Yun Set; Shinji Yamashita
IEEE Transactions on Instrumentation and Measurement, Jul. 2020
Lead, Corresponding - Comprehensive ranging disambiguation for amplitude-modulated continuous wave laser scanner
Chao Zhang; Sifan Liu; Zheyuan Zhang; Neisei Hayashi; Lei Jin; Sze Yun Set; Shinji Yamashita
Optics and Photonics for Advanced Dimensional Metrology, 01 Apr. 2020
Lead, Corresponding - Amplitude-modulated continuous-wave laser scanner employing adaptive gain control for avoidance of receiver saturation
Chao Zhang; Sifan Liu; Zheyuan Zhang; Fulin Xiang; Neisei Hayashi; Lei Jin; Sze Yun Set; Shinji Yamashita
Photonic Instrumentation Engineering VII, 02 Mar. 2020 - Amplitude-Modulated Continuous-Wave Light Detection and Ranging with Bessel Beamforming
Chao Zhang; Sifan Liu; Zheyuan Zhang; Lei Jin; Sze Yun Set; Shinji Yamashita
Conference on Lasers and Electro-Optics, 2020 - A novel software-based optical sampling scheme for high-precision and interference-free time-of-flight LiDAR
Yu Ishizaki; Chao Zhang; Sze Y. Set; Shinji Yamashita
Conference on Lasers and Electro-Optics, 2020 - Non-Mechanical Scanning AMCW Laser Rangefinder Using Wavelength-Swept Dispersion-Tuned Fiber Laser
Zheyuan Zhang; Chao Zhang; Takuma Shirahata; Shinji Yamashita; Sze Y. Set
Conference on Lasers and Electro-Optics, 2020 - Recovery of defocused 3D data for focusing-optics-based amplitude-modulated continuous-wave laser scanner
Chao Zhang; Sifan Liu; Zheyuan Zhang; Fulin Xiang; Neisei Hayashi; Lei Jin; Sze Yun Set; Shinji Yamashita
SPIE Future Sensing Technologies, 12 Nov. 2019
Lead, Corresponding - Advanced fiber lasers for intelligent bio‑imaging, 3D imaging, environmental sensing applications
L. Jin; C. Zhang; S. Y. Se; S. Yamashita
Advanced Fiber Laser (AFL) Conference, Nov. 2019, [Reviewed] - Real-time strain measurement using slope-assisted Brillouin optical correlation-domain analysis with polarization maintaining fiber and its human interactive sound effecter application
Neisei Hayashi; Chao Zhang; Lei Jin; Sze Yun Set; Shinji Yamashita
Real-time Measurements, Rogue Phenomena, and Single-Shot Applications IV, 04 Mar. 2019 - Irradiation angle dependence and polarization dependence in 3D geometry measurement using AMCW LiDAR
Chao Zhang; Neisei Hayashi; Sze Yun Set; Shinji Yamashita
Laser 3D Manufacturing VI, 04 Mar. 2019
Lead, Corresponding - Polarization-insensitive amplitude-modulated CW LiDAR
Chao Zhang; Neisei Hayashi; Sze Yun Set; Shinji Yamashita
Conference on Lasers and Electro-Optics, 2019
Lead, Corresponding - The Impact of Saturable Absorber Recovery Time in Hybrid Mode-Locked Fiber Laser Design
Lei Jin; Chao Zhang; Neisei Hayashi; Sze Yun Set; Shinji Yamashita
Conference on Lasers and Electro-Optics, 2019 - Correlation-domain distributed temperature sensing based on enhanced forward Brillouin scattering
Neisei Hayashi; Yosuke Mizuno; Kentaro Nakamura; Chao Zhang; Lei Jin; Sze Yun Set; Shinji Yamashita
Conference on Lasers and Electro-Optics, 2019 - All-fiber dual-wavelength mode-locked laser by using low-birefringence Lyot-filter and carbon nanotube
Yuanjun Zhu; Fulin Xiang; Pengtao Yuan; Neisei Hayashi; Chao Zhang; Lei Jin; Sze Y. Set; Shinji Yamashita
Conference on Lasers and Electro-Optics, 2019 - 3D scanning using AMCW LiDAR employing optoelectronic ranging disambiguation
C. Zhang; N. Hayashi; L. Jin; S. Y. Se; S. Yamashita
Asia‑Pacific Optical Sensors Conference (APOS), May 2018, [Reviewed]
Lead, Corresponding - Novel configuration of finite-impulse-response filters tolerant to carrier-phase fluctuations in digital coherent optical receivers for higher-order quadrature amplitude modulation signals
Yojiro Mori; Chao Zhang; Kazuro Kikuchi
Optics Express, 06 Nov. 2012 - Kerr-effect compensation with parallel single split-steps in digital coherent receivers
Yojiro Mori; Chao Zhang; Kazuro Kikuchi
2012 17th Opto-Electronics and Communications Conference, Jul. 2012 - Novel FIR-Filter Configuration Tolerant to Fast Phase Fluctuations in Digital Coherent Receivers for Higher-Order QAM Signals
Yojiro MORI; Chao ZHANG; Kazuro KIKUCHI
Optical Fiber Communication Conference, 2012 - Second-Order PMD Monitoring from Adaptive FIR-Filter Tap Coefficients in a Digital Coherent Receiver
Md. Saifuddin Faruk; Yojiro Mori; Chao Zhang; Koji Igarashi; Kazuro Kikuchi
Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2011, 2011 - Multi-impairment monitoring from adaptive finite-impulse-response filters in a digital coherent receiver
Md. Saifuddin Faruk; Yojiro Mori; Chao Zhang; Koji Igarashi; Kazuro Kikuchi
Optics Express, 07 Dec. 2010 - Multi-impairments monitoring from the equalizer in a digital coherent optical receiver
Md. Saifuddin Faruk; Yojiro Mori; Chao Zhang; Kazuro Kikuchi
36th European Conference and Exhibition on Optical Communication, Sep. 2010 - Ultrafast digital coherent receiver based on parallel processing of decomposed frequency subbands
Chao Zhang; Yojiro Mori; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
36th European Conference and Exhibition on Optical Communication, Sep. 2010
Lead, Corresponding - Equalization of nonlinear transmission impairments by maximum-likelihood-sequence estimation in digital coherent receivers
Md. Khairuzzaman; Chao Zhang; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
Optics Express, 23 Feb. 2010 - Proper Polarization Demultiplexing in Coherent Optical Receiver using Constant Modulus Algorithm with Training Mode
Md. Saifuddin Faruk; Yojiro Mori; Chao Zhang; Kazuro Kikuchi
2010 15TH OPTOELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC), 2010, [Reviewed] - Straight‑line 1,073‑km transmission of 640‑Gbit/s dual‑polarization QPSK signals on a single carrier
C. Zhang; Y. Mori; M. Usui; K. Igarashi; K. Katoh; K. Kikuchi
European Conference on Optical Communication (ECOC), Sep. 2009, [Reviewed]
Lead, Corresponding - 200‑km transmission of 100‑Gbit/s 32‑QAM dual‑polarization signals using a digital coherent receiver
Y. Mori; C. Zhang; M. Usui; K. Igarashi; K. Katoh; K. Kikuchi
European Conference on Optical Communication (ECOC), Sep. 2009, [Reviewed] - Transmission of 160‑Gbit/s QPSK signals on a single carrier over 1,000 km using digital coherent receivers
C. Zhang; Y. Mori; M. Usui; K. Igarashi; K. Katoh; K. Kikuchi
European Conference on Optical Communication (ECOC), Sep. 2009
Lead, Corresponding - Fiber-nonlinearity equalization by maximum-likelihood-sequence estimation (MLSE) in digital coherent receivers
Md. Khairuzzaman; Chao Zhang; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
2009 14th OptoElectronics and Communications Conference, Jul. 2009 - Ultrafast Operation of Digital Coherent Receivers Using Their Time-Division Demultiplexing Function
Chao Zhang; Yojiro Mori; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
Journal of Lightwave Technology, Feb. 2009
Lead, Corresponding - Unrepeated 200-km transmission of 40-Gbit/s 16-QAM signals using digital coherent receiver
Yojiro Mori; Chao Zhang; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
Optics Express, 23 Jan. 2009 - Phase-noise tolerance of optical 16-QAM signals demodulated with decision-directed carrier-phase estimation
Yojiro MORI; Chao ZHANG; Koji IGARASHI; Kazuhiro KATOH; Kazuro KIKUCHI
Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009 - Demodulation of 1.28-Tbit/s Polarization-multiplexed 16-QAM Signals on a Single Carrier with Digital Coherent Receiver
Chao ZHANG; Yojiro MORI; Koji IGARASHI; Kazuhiro KATOH; Kazuro KIKUCHI
Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
Lead, Corresponding - Unrepeated 200-km transmission of 40-Gbit/s 16-QAM signals using digital coherent optical receiver
Yojiro Mori; Chao Zhang; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
OECC/ACOFT 2008 - Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference on Optical Fibre Technology, Jul. 2008 - Demodulation of 320‑Gbit/s optical quadrature phase shift keying signal with digital coherent receiver having time‑division demultiplexing Function
K. Kikuchi; K. Igarashi; Y. Mori; C. Zhang
Optical Fiber Communication Conference (OFC), Feb. 2008, [Reviewed] - Demodulation of 640‑Gbit/s polarization‑multiplexed OTDM QPSK signals using a digital coherent receiver
C. Zhang; Y. Mori; K. Igarashi; K. Kikuchi
Optical Fiber Communication Conference (OFC), Feb. 2008
Lead, Corresponding - Transmission of 40-Gbit/s 16-QAM signal over 100-km standard single-mode fiber using digital coherent optical receiver
Yojiro Mori; Chao Zhang; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
2008 34th European Conference on Optical Communication, 2008 - Demodulation of 480-Gbit/s 8PSK OTDM signal with digital coherent receiver
Chao Zhang; Yojiro Mori; Koji Igarashi; Kazuhiro Katoh; Kazuro Kikuchi
2008 34th European Conference on Optical Communication, 2008
Lead, Corresponding
MISC
- 3 次元レーザースキャナーによる 3 次元形状計測における偏波依存性
張超; 林寧生; 金磊; セットジイヨン; 山下真司
第79回応用物理学会秋季学術講演会, 名古屋国際会議場, 愛知, 18 Sep. 2018
Industrial Property Rights
- 特願XXXX-XXXXXX, 光学特性測定装置および測定方法
- 特願2023-197357, 三次元形状計測方法
- 特願2023-195612, ひずみ計測装置及びひずみ計測方法
- 特願2023-028289, 光信号測定装置及び光信号測定方法
- 特願2022-022391, 非接触型測距装置及び方法
- 特願2021-079270, 非機械式走査型レーザ距離計
- 特願2021-049793, 簡易な構成を用いた長距離伝搬ベッセルビームの生成
- 特願2017-052536, 端面検査装置とその汚れと傷の判別方法
- 特願2017-052535, 光コネクタ端面検査装置とその合焦画像データ取得方法
- 特願2017-052534, 端面検査装置とその合焦画像データ取得方法
Award
Research Themes
- Apr. 2025 - Mar. 2028
Ultra-large-scale data center network through optical wired and wireless convergence
Grant-in-Aid for Scientific Research (B), Toyota Technological Institute - Apr. 2022 - Mar. 2025
Establishment of the Scientific Foundation of An Innovative 3D Imaging Platform
Grant-in-Aid for Scientific Research (A), The University of Tokyo - Jun. 2023 - May 2024
２次元光複素振幅信号の超高速・高解像度測定の研究 - Apr. 2022 - Mar. 2024
非破壊劣化インフラ診断に向けた並列光源群を用いた低コストな長距離・高分解能LiDARの研究開発 - Jul. 2021 - Mar. 2023
Detection of ultrafast 2-D complex signals
Grant-in-Aid for Challenging Research (Exploratory), Shimane University
Courses
- Sep. 2025 - Present
電気磁気学演習I - Sep. 2025 - Present
電気磁気学I - Apr. 2025 - Present
電気電子基礎実習PBL - Apr. 2025 - Present
電子回路II - Apr. 2025 - Present
電気電子工学セミナー - Apr. 2025 - Present
電気電子工学序論 - Apr. 2025 - Present
電気電子工学実験I - Apr. 2024 - Mar. 2025
電磁気学 - Oct. 2023 - Mar. 2025
機械・電気電子工学基礎実験 - Apr. 2023 - Mar. 2025
機械・電気電子工学実験III - Apr. 2023 - Mar. 2025
電気電子工学概論 - Oct. 2021 - Mar. 2025
機械・電気電子工学実験II - Apr. 2023 - Sep. 2023
電気システム1 - Oct. 2021 - Mar. 2023
電気電子工学応用 - Oct. 2021 - Mar. 2023
電子回路II - Apr. 2021 - Sep. 2021
機械・電気電子工学基礎セミナー
Media Coverage
- Aug. 2023
村田学術振興財団令和5年度研究助成金贈呈式
Paper - Nov. 2021
しまね大交流会「しまねの学問ガイド」
Pr - Jun. 2021
東京大学駒場リサーチキャンパス公開
Pr - 2020
テーマにそって探究してみよう
Internet - Jan. 2020
Photonics Challenge 2020
Media report - Jun. 2019
大学院座談会
Internet - May 2019
Todai To Texas 2020説明会
Internet - Apr. 2019
日経イノベーションミートアップ
Internet - Mar. 2019
「東大生は変人であることが強み」SXSWに出展した7つの東大発プロジェクト
Internet - Feb. 2019
SPIE Startup Challenge
Internet - Todai To Texas (TTT) Demo Day
Internet
