Presentation Information
[Plenary_Talk_1]Evolution of All Photonics Network Toward 2030s
~ From Device Technology to Network Architecture ~
○Takashi Saida (Vice President, Head of Device Innovation Center, NTT Corporation)
The increasing demand for high-capacity, low-latency, and energy-efficient communication networks is driven by emerging technologies such as AI, 6G and smart cities. Traditional IT infrastructure is reaching its limits, necessitating a fundamental shift in network architecture. The All-Photonics Network (APN), developed under the IOWN initiative, leverages advanced optical technologies to overcome these challenges and support next-generation digital services.
This keynote will present the key technological pillars of APN. Photonic-electronic convergence devices eliminate signal speed bottlenecks, enabling ultra-high-speed optical transmission essential for high-performance networks. Wavelength conversion technologies expand the usable spectrum, improving network flexibility and resource efficiency. Spatial multiplexing further enhances transmission capacity by utilizing multiple optical modes, addressing the exponential growth in data traffic.
Beyond these advancements, network automation is critical to optimizing APN performance. In-situ monitoring and adaptive control mechanisms enable intelligent traffic management, ensuring greater efficiency, scalability and reliability. By integrating these innovations, APNs provide a sustainable and high-performance foundation for future digital infrastructure.
This talk will explore how APNs can reshape communication networks, enabling seamless connectivity and unlocking new possibilities for industries and society.
Bio: Takashi Saida received his B.S., M.S., and Ph.D. in Engineering from the University of Tokyo in 1993, 1995, and 1998, specializing in interferometric optical sensing systems under Prof. Kazuo Hotate. After joining NTT in 1998, dedicated his efforts to the research and development of advanced waveguide devices for next-generation optical communications. His early contributions include the creation of a waveguide-type polarization analyzer, a waveguide-type polarization controller, and an integrated optical digital-to-analog converter for pulse pattern recognition. From 2002 to 2003, he expanded his research at E. L. Ginzton Laboratory, Stanford University under Prof. Martin Fejer. Returning to Japan in 2003, he focused on wavefront matching method (WFM) in optical waveguide design, progressing it to a commercial-ready stage. From 2006 to 2009, as Director of PLC Design at NTT Electronics Corporation, he led both R&D and business development, successfully bringing PLC-based devices like ROADMs, athermal AWG filters, and Delay Line Interferometers for DQPSK demodulation to market. In 2009, he returned to NTT Laboratories to direct R&D on optical devices for digital coherent transmission, particularly silicon photonics-based COSA (coherent optical sub-assemblies). From 2019 to 2023, he led research on optical transmission technology at NTT Network Innovation Laboratories. Since 2023, he has served as Vice President and Head of the Device Innovation Center at NTT Corporation, focusing on advancing device technologies, including photonics-electronics convergence, for IT infrastructure. He is a member of IEICE, JSAP, IEEE, and a Fellow of Optica.
This keynote will present the key technological pillars of APN. Photonic-electronic convergence devices eliminate signal speed bottlenecks, enabling ultra-high-speed optical transmission essential for high-performance networks. Wavelength conversion technologies expand the usable spectrum, improving network flexibility and resource efficiency. Spatial multiplexing further enhances transmission capacity by utilizing multiple optical modes, addressing the exponential growth in data traffic.
Beyond these advancements, network automation is critical to optimizing APN performance. In-situ monitoring and adaptive control mechanisms enable intelligent traffic management, ensuring greater efficiency, scalability and reliability. By integrating these innovations, APNs provide a sustainable and high-performance foundation for future digital infrastructure.
This talk will explore how APNs can reshape communication networks, enabling seamless connectivity and unlocking new possibilities for industries and society.
Bio: Takashi Saida received his B.S., M.S., and Ph.D. in Engineering from the University of Tokyo in 1993, 1995, and 1998, specializing in interferometric optical sensing systems under Prof. Kazuo Hotate. After joining NTT in 1998, dedicated his efforts to the research and development of advanced waveguide devices for next-generation optical communications. His early contributions include the creation of a waveguide-type polarization analyzer, a waveguide-type polarization controller, and an integrated optical digital-to-analog converter for pulse pattern recognition. From 2002 to 2003, he expanded his research at E. L. Ginzton Laboratory, Stanford University under Prof. Martin Fejer. Returning to Japan in 2003, he focused on wavefront matching method (WFM) in optical waveguide design, progressing it to a commercial-ready stage. From 2006 to 2009, as Director of PLC Design at NTT Electronics Corporation, he led both R&D and business development, successfully bringing PLC-based devices like ROADMs, athermal AWG filters, and Delay Line Interferometers for DQPSK demodulation to market. In 2009, he returned to NTT Laboratories to direct R&D on optical devices for digital coherent transmission, particularly silicon photonics-based COSA (coherent optical sub-assemblies). From 2019 to 2023, he led research on optical transmission technology at NTT Network Innovation Laboratories. Since 2023, he has served as Vice President and Head of the Device Innovation Center at NTT Corporation, focusing on advancing device technologies, including photonics-electronics convergence, for IT infrastructure. He is a member of IEICE, JSAP, IEEE, and a Fellow of Optica.
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