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Mixed Path-Granularity and Grouped-Path Routing Networks

https://doi.org/10.23919/OECC/PSC62146.2025.11109615

Hirai, Yudai; Kuno, Takuma; Mori, Yojiro; Lin, Shih-Chun; Matsuura, Motoharu; Subramaniam, Suresh; Hasegawa, Hiroshi (June 2025, IEEE)

Free, publicly-accessible full text available June 29, 2026
Analytical and numerical hybrid capacity estimation method for multi-band elastic optical networks

https://doi.org/10.1117/12.3043304

Shimoi, Shunya; Yuasa, Hayato; Kuno, Takuma; Mori, Yojiro; Lin, Shih-Chun; Matsuura, Motoharu; Subramaniam, Suresh; Hasegawa, Hiroshi (March 2025, SPIE)
Li, Guifang; Nakajima, Kazuhide; Srivastava, Atul K (Ed.)
Free, publicly-accessible full text available March 19, 2026
Demonstration of Multigranular-Routing Layered Network with Impairment-Aware Modulation Format Selection

https://doi.org/10.1364/OFC.2025.Tu2H.2

Yuasa, Hayato; Kuno, Takuma; Sekizuka, Taisei; Mori, Yojiro; Lin, Shih-Chun; Matsuura, Motoharu; Subramaniam, Suresh; Maeda, Wakako; Yanagimachi, Shigeyuki; Hasegawa, Hiroshi (January 2025, Optica Publishing Group)

We demonstrate the validity of our multigranular-routing layered network architecture that adopts optical bypass. Network simulations show OXC cost reduction by 17% / 21%, while transmission experiments confirm a transmittable distance increase of 500 km. © 2025 The Authors
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Free, publicly-accessible full text available January 1, 2026
4.71-Pbps-Throughput Multiband OXC Based on Space- and Wavelength-Granular Hybrid Switching

https://doi.org/10.1109/PSC57974.2023.10297168

Kuno, Takuma; Ochiai, Takuro; Higuchi, Reiji; Satake, Kazato; Cruzado, Kenji; Munakata, Ryuji; Mori, Yojiro; Lin, Shih-Chun; Matsuura, Motoharu; Subramaniam, Suresh; et al (September 2023, Optoelectronics and Communications Conference)

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

https://doi.org/10.1364/OFC.2023.M4G.8

Munakata, Ryuji; Kuno, Takuma; Mori, Yojiro; Lin, Shih-Chun; Matsuura, Motoharu; Subramaniam, Suresh; Hasegawa, Hiroshi (March 2023, Optical Fiber Communications (OFC))

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.
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