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Employment (1)

NTT Network Innovation Laboratories: Yokosuka, Kanagawa, JP

2017-04 to present
Employment
Source: Self-asserted source
Takeo Sasai

Education and qualifications (1)

The University of Tokyo: Tokyo, Tokyo, JP

2015-04 to 2017-03 | M.E. (Electrical Engineering and Information Systems)
Education
Source: Self-asserted source
Takeo Sasai

Professional activities (1)

Ippan Shadan Hojin Denshi Joho Tsushin Gakkai: Minato-ku, Tokyo, JP

2020 to present
Service
Source: Self-asserted source
Takeo Sasai

Works (18)

Design of Fiber-Longitudinal Optical Power Monitor

Journal of Lightwave Technology
2025-03-01 | Journal article
DOI: 10.1109/JLT.2024.3487862
Contributors: Takeo Sasai; Sze Yun Set; Shinji Yamashita
Source: check_circle
Crossref

Long-Haul >100-Tb/s Transmission Over >1000 km With High-Symbol-Rate Triple-Band WDM Signals

Journal of Lightwave Technology
2025-02-15 | Journal article
DOI: 10.1109/JLT.2024.3463670
Contributors: Fukutaro Hamaoka; Masanori Nakamura; Takeo Sasai; Shuto Sugawara; Takayuki Kobayashi; Yutaka Miyamoto; Etsushi Yamazaki
Source: check_circle
Crossref

Multi-Granular Switching Node and Enabling Devices

Journal of Lightwave Technology
2025-02-15 | Journal article
DOI: 10.1109/JLT.2024.3454380
Contributors: Kenya Suzuki; Masashi Ota; Yoshie Morimoto; Keita Yamaguchi; Osamu Moriwaki; Fukutaro Hamaoka; Shuto Sugawara; Takeo Sasai; Takayuki Kobayashi; Masanori Nakamura et al.
Source: check_circle
Crossref

Linear Least Squares Estimation of Fiber-Longitudinal Optical Power Profile

Journal of Lightwave Technology
2024 | Journal article
DOI: 10.1109/JLT.2023.3327760
Contributors: Takeo Sasai; Minami Takahashi; Masanori Nakamura; Etsushi Yamazaki; Yoshiaki Kisaka
Source: check_circle
Crossref

Monitoring PDL Value and Location Using DSP-Based Longitudinal Power Profile Estimation

Journal of Lightwave Technology
2024 | Journal article
DOI: 10.1109/JLT.2024.3407722
Contributors: Minami Takahashi; Takeo Sasai; Etsushi Yamazaki; Yoshiaki Kisaka
Source: check_circle
Crossref

Semi-automatic line-system provisioning with an integrated physical-parameter-aware methodology: field verification and operational feasibility

Journal of Optical Communications and Networking
2024-09-01 | Journal article
DOI: 10.1364/JOCN.524669
Contributors: Hideki Nishizawa; Giacomo Borraccini; Takeo Sasai; Yue-Kai Huang; Toru Mano; Kazuya Anazawa; Masatoshi Namiki; Soichiroh Usui; Tatsuya Matsumura; Yoshiaki Sone et al.
Source: check_circle
Crossref

Digital Twin of Optical Networks: A Review of Recent Advances and Future Trends

Journal of Lightwave Technology
2024-06-15 | Journal article
DOI: 10.1109/JLT.2024.3401419
Contributors: Danshi Wang; Yuchen Song; Yao Zhang; Xiaotian Jiang; Jiawei Dong; Faisal Nadeem Khan; Takeo Sasai; Shanguo Huang; Alan Pak Tao Lau; Massimo Tornatore et al.
Source: check_circle
Crossref

Digital Inverse Multiplexing for Transmitters With Symbol Rates Over DAC Bandwidth Limit

Journal of Lightwave Technology
2024-06-01 | Journal article
DOI: 10.1109/JLT.2024.3392301
Contributors: Akira Kawai; Masanori Nakamura; Takayuki Kobayashi; Munehiko Nagatani; Hiroshi Yamazaki; Takeo Sasai; Fukutaro Hamaoka; Yutaka Miyamoto
Source: check_circle
Crossref

Performance Limit of Fiber-Longitudinal Power Profile Estimation Methods

Journal of Lightwave Technology
2023 | Journal article
DOI: 10.1109/JLT.2023.3234534
Contributors: Takeo Sasai; Etsushi Yamazaki; Yoshiaki Kisaka
Source: check_circle
Crossref

Digital Longitudinal Monitoring of Optical Fiber Communication Link

Journal of Lightwave Technology
2022-04-15 | Journal article
DOI: 10.1109/JLT.2021.3139167
Contributors: Takeo Sasai; Masanori Nakamura; Etsushi Yamazaki; Shuto Yamamoto; Hideki Nishizawa; Yoshiaki Kisaka
Source: check_circle
Crossref

High Spectral Efficiency Real-Time 500-Gb/s/carrier Long-Haul Transmission Over Field-Installed Fibers

Journal of Lightwave Technology
2021-02-15 | Journal article
DOI: 10.1109/JLT.2020.3040766
Contributors: Hideki Maeda; Kohei Saito; Hiroki Kawahara; Takeshi Seki; Takeo Sasai; Fukutaro Hamaoka
Source: check_circle
Crossref

Open whitebox architecture for smart integration of optical networking and data center technology [Invited]

Journal of Optical Communications and Networking
2021-01-01 | Journal article
DOI: 10.1364/JOCN.403205
Contributors: Hideki Nishizawa; Wataru Ishida; Yoshiaki Sone; Takafumi Tanaka; Seiki Kuwabara; Tetsuro Inui; Takeo Sasai; Masahito Tomizawa
Source: check_circle
Crossref

Simultaneous Detection of Anomaly Points and Fiber types in Multi-span Transmission Links Only by Receiver-side Digital Signal Processing

Optical Fiber Communication Conference (OFC) 2020
2020 | Conference paper
DOI: 10.1364/ofc.2020.th1f.1
ISBN: 9781943580712
Source: Self-asserted source
Takeo Sasai

Laser Phase Noise Tolerance of Uniform and Probabilistically-shaped QAM Signals for High Spectral Efficiency Systems

Journal of Lightwave Technology, Vol. 38, Issue. 2, 2020
2020-12-15 | Preprint
DOI: 10.1109/jlt.2019.2945470
ARXIV: arXiv:2012.08078v1
Source: Self-asserted source
Takeo Sasai
grade
Preferred source (of 2)‎

Wiener-Hammerstein model and its learning for nonlinear digital pre-distortion of optical transmitters

Optics Express, Vol. 28, Issue. 21, pp. 30952-30963, 2020
2020-12-15 | Preprint
DOI: 10.1364/oe.400605
ARXIV: arXiv:2012.08046v1
Source: Self-asserted source
Takeo Sasai
grade
Preferred source (of 2)‎

Experimental Analysis of Laser Phase Noise Tolerance of Uniform 256QAM and Probabilistically Shaped 1024QAM

Optical Fiber Communication Conference (OFC) 2019
2019 | Conference paper
DOI: 10.1364/ofc.2019.w1d.5
ISBN: 9781943580538
Source: Self-asserted source
Takeo Sasai

Experimental Investigation of Laser Linewidth Tolerance of 32-GBaud DP-256QAM Optical Coherent System

2018 23rd Opto-Electronics and Communications Conference (OECC)
2018-07 | Conference paper
DOI: 10.1109/oecc.2018.8729902
ISBN: 9781538691458
Source: Self-asserted source
Takeo Sasai

Enhancement of Spatial Resolution in Distributed Measurement of Brillouin Dynamic Grating Spectrum by Optical Correlation Domain Analysis

Conference on Lasers and Electro-Optics
2016 | Conference paper
DOI: 10.1364/cleo_si.2016.sm3p.6
ISBN: 9781943580118
Source: Self-asserted source
Takeo Sasai
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