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Technical Papers―Long-haul Applications
Mass Production of Two-core Fiber and Applicability for Pb/s Submarine Cable
Y. Kawaguchi, H. Sakuma, T. Haruna, T. Hayashi, H. Yamaguchi, M. Hirano, and T. Hasegawa
Optical Fiber Communication Conference (OFC) 2026, paper W1F.6.
Crosstalk Characteristics of 200-μm-Coating 4-Core Fibers in 288-Fiber/864-Fiber Freeform Ribbon Cables
T. Hayashi, A. Inoue, Y. Suzuki, T. Nagashima, Y. Shimoda, and F. Sato
International Wire & Cable Symposium (IWCS) 2023, pp. 193–197.
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Ultra-High-Density Microduct Cable with Uncoupled 12-Core Fibers with Standard 250-µm Coating
T. Hayashi, A. Inoue, Y. Suzuki, Y. Norisugi, K. Kawamoto, J. Takano, T. Nagashima, T. Hirama, K. Takeda, Y. Shimoda, and F. Sato
Optical Fiber Communication Conference (OFC) 2023, paper Tu2C.2.
Uncoupled Multi-core Fiber Design for Practical Bidirectional Optical Communications
T. Hayashi, T. Nagashima, A. Inoue, H. Sakuma, T. Suganuma, and T. Hasegawa
Optical Fiber Communication Conference (OFC) 2022, paper M1E.1.
Accuracy of Analytical Expressions for Rayleigh Backscattered Crosstalk in Bidirectional Multi-Core Fiber Transmissions
T. Hayashi
Optics Express, vol. 30, no. 13, pp. 23943–23952, June 2022
Proper Core Numbering and Clarification of Polarity Concepts for Polarity-Management-Free 4-Core Multicore Fiber Connections
T. Hayashi, T. Nagashima, and T. Morishima
2024 IEEE Opto-Electronics and Communications Conference (OECC)
Low-Loss Uncoupled Two-Core Fiber for Power Efficient Practical Submarine Transmission
Y. Tamura, T. Hayashi, T. Nakanishi, and T. Hasegawa
Optical Fiber Communication Conference (OFC) 2019, paper M1E.5.
First ≤0.15-dB/km uncoupled 2-core fibre for transoceanic cable
T. Suganuma, Y. Kobayashi, H. Sakuma, S. Sato, T. Haruna, T. Hayashi, and T. Hasegawa
European Conference on Optical Communication (ECOC) 2023, paper Th.A.6.3, pp. 1130–1133.
Macro- and Micro-Bending Performances of Uncoupled 200 µm-Coated Multi-Core Fibers
Y. Kawaguchi, H. Sakuma, T. Haruna, T. Hayashi, and T. Hasegawa
Optical Fiber Communication Conference (OFC) 2025, paper W3C.3.
Behavior of Inter-core Crosstalk of Two-core Fiber in Submarine Cable
Y. Kawaguchi, H. Sakuma, T. Haruna, T. Hayashi, T. Hasegawa, K. Yasuhara, J. C. Aquino, and D. Masuda
Optical Fiber Communication Conference (OFC) 2025, paper W4C.3.
Crosstalk Characteristics of Two Core Fiber Submarine Cables
Y. Kawaguchi, H. Sakuma, T. Haruna, T. Hayashi, H. Yamaguchi, M. Hirano, T. Hasegawa, K. Yasuhara, J. C. Aquino, and D. Masuda
31st OptoElectronics and Communications Conference (OECC 2026), paper P2-32.
Randomly-Coupled Multi-Core Fiber Technology
T. Hayashi, T. Sakamoto, Y. Yamada, R. Ryf, R.-J. Essiambre, N. Fontaine, M. Mazur, H. Chen, and T. Hasegawa
Proceedings of the IEEE, vol. 110, no. 11, pp. 1786–1803, Nov. 2022.
Record-Low Spatial Mode Dispersion and Ultra-Low Loss Coupled Multi-Core Fiber for Ultra-Long-Haul Transmission
T. Hayashi, Y. Tamura, T. Hasegawa, and T. Taru
Journal of Lightwave Technology, vol. 35, no. 3, pp. 450–457, Feb. 2017.