Research and Development of Scalable Optical Transport Technologies | NTT R&D Website
Transmission Experiment Employing Mode-multiplexed Optical Signals—Key Achievement for Future High-capacity
https://www.rd.ntt/e/research/JN202205_18134.html
Optical Full-mesh Network Technologies Supporting the All-Photonics Network | NTT R&D Website
) Technologies for petabit-class ultra-large-capacity optical transmission system With the aim of deploying a
https://www.rd.ntt/e/research/JN20200318_h.html
rdf17-1e.pdf
Design ・High capacity C+L-band transmission C-band L-band C-band L-band Frequency Optical fiber ■Digital
https://www.rd.ntt/e/nttdtc/theme/pdf/2017/rdf/rdf17-1e.pdf
Yutaka Miyamoto | NTT R&D Website
September 25, 2008 World Record for High-capacity Optical Fiber Transmission without Optical Dispersion
https://www.rd.ntt/e/organization/researcher/fellow/f_006.html
Long-haul optical transmission technology using spatial mode-multiplexed signals|NTT R&D Website
-multiplexed signals 05/15/2024 Construction of high-capacity next-generation optical backbone networksLong
https://www.rd.ntt/e/research/NI0063.html
Wireless Technologies for Accelerating High-capacity Transmission, Low Energy, and Application-area Expansion | NTT R&D Website
focusing on high-capacity transmission by combining them with optical technologies, coverage extension for
https://www.rd.ntt/e/research/JN202307_22290.html
Achieving IOWN/6G and Creating New Value with World-leading Technologies | NTT R&D Website
will enable high-speed large-capacity optical transmission over 1 Tbit/s per wavelength, which is
https://www.rd.ntt/e/research/JN202405_26173.html
Optical Transmission Technology for Practical Implementation of the All-Photonics Network | NTT R&D Website
stable transmission of high-speed optical signals. Multiplexing using multiple wavelength bands
https://www.rd.ntt/e/research/JN202211_20087.html
R&D History | NTT R&D Website
ultrahigh-capacity optical fiber transmission system started. Large-capacity packet switching system (D 51
https://www.rd.ntt/e/about/chronicle/
What is high-capacity optical transmission technology? Infrastructure to support rapidly increasing communication traffic|NTT R&D Website
What is high-capacity optical transmission technology? Infrastructure to support rapidly
https://www.rd.ntt/e/communication_device/0001.html
C+L-band Colorless, Directionless, Contentionless Reconfigurable Optical Add/Drop Multiplexing for High-capacity Network Flexibility | NTT R&D Website
. For high-capacity optical transmission, it is important to expand the use of wavelength-division
https://www.rd.ntt/e/research/JN202206_18480.html
Transmission Technology for Space-division Multiplexing Supporting Next-generation High-speed, Large-capacity Communications beyond Existing Limits | NTT R&D Website
system having a transmission capacity of 16 Tbit/s per optical fiber, which represents an increase of
https://www.rd.ntt/e/research/JN202307_22296.html
Turning an Innovative Idea into Common Sense and Making It Useful to Society | NTT R&D Website
the above-mentioned new transmission media, we are also studying high-capacity SDM optical
https://www.rd.ntt/e/research/JN202304_21583.html
Research and Development for Pioneering a New Communications Paradigm with Wide-area Coverage | NTT R&D Website
technologies, which include advanced and high-capacity backbone optical transmission networks and extended
https://www.rd.ntt/e/research/JN202205_18109.html
Masanori Nakamura | NTT R&D Website
Conference)Subcommittees track S3: Transmission Systems Keywords High-capacity and long-haul optical
https://www.rd.ntt/e/organization/researcher/special/s_086.html
Coherent Optical-amplifier-repeater Transmission Will Enable Optical Transmission over Longer Distances and with Larger Capacities | NTT R&D Website
to achieve a high-capacity, long-distance optical-amplification transmission of 100 Tbit/s over a
https://www.rd.ntt/e/research/JN202512_37464.html
Ultra-high-capacity Optical Communication Technology | NTT R&D Website
multiplexing (WDM) [1]. Our research on ultra-high-capacity transmission technologies, namely, optical-fiber
https://www.rd.ntt/e/research/JN20200312_h.html
Aiming for High-speed, High-capacity Wireless Communication Systems through Practical Application of Terabit-class Wireless Transmission Technology | NTT R&D Website
Terabit-class Wireless Transmission Technology 09/19/2025 Aiming for High-speed, High-capacity Wireless
https://www.rd.ntt/e/research/JN202507_34705.html
Kouki Shibahara | NTT R&D Website
the lab/center/dept Research on high-capacity optical transmission fundamental technologies extremely
https://www.rd.ntt/e/organization/researcher/special/s_070.html
Research and Development of 1.6-Tbit/s-class Ethernet Optical Transmission Technology Supporting Large-scale Datacenter Networks | NTT R&D Website
capacity of 0.1 Tbit/s or more per fiber. Transmission experiments with relatively high-speed bitrate per
https://www.rd.ntt/e/research/JN202405_26179.html
NTT Innovative Photonic Network Center | NTT R&D Website
integration technology to achieve high-speed digital coherent optical transmission of the multi-terabit/s
https://www.rd.ntt/e/ipc/
R&D of Innovative Optical Transmission Line Technologies|NTT R&D Website
introduces our recent developments in optical transmission line technologies. High-density and high-count
https://www.rd.ntt/e/research/JN202102_10373.html
NTT | Exhibits | Tsukuba Forum 2026
, and a tunable optical filter (Active-GEQ) suitable for optical spectrum shaping in ultra-high-capacity
https://www.rd.ntt/e/as/tforum/companylist_nttc1.html
Distinguished Researcher Taiji Sakamoto | NTT Access Network Service Systems Laboratories | NTT R&D Website
ultra-high-capacity, ultra-high-speed network of the future. Today, the data transmission capacity
https://www.rd.ntt/e/as/team_researchers/researcher/03.html
Sharing Moments of "This Is It!" with Colleagues to Research and Develop Optical Communication Technology for Revolutionizing Society | NTT R&D Website
expected to continue to increase exponentially [1]. A high-capacity WDM system using digital coherent
https://www.rd.ntt/e/research/JN202007_5686.html
Future Development of Digital Coherent Optical Transmission Technology | NTT R&D Website
technology are described in this article from the perspectives of high-speed and high-capacity transmission
https://www.rd.ntt/e/research/JN202205_18123.html
Petabit-class Optical Transmission Using Spatial Multiplexing Technology Opens a New Era with a Paradigm Shift | NTT R&D Website
and development on next-generation high-capacity optical transmission systems as a Distinguished
https://www.rd.ntt/e/research/JN202302_20974.html
R&D of Innovative Optical Fiber Facility Technologies | NTT R&D Website
consumption (power efficiency 100 times), 2) high quality and high capacity (transmission capacity 125 times
https://www.rd.ntt/e/research/JN202408_28844.html
Senior Distinguished Researcher Kazuhide Nakajima | NTT Access Network Service Systems Laboratories | NTT R&D Website
the introduction of the first optical transmission system running through the Japanese archipelago
https://www.rd.ntt/e/as/team_researchers/researcher/01.html
Bandwidth-doubler Technology Eliminates Bandwidth Bottlenecks | NTT R&D Website
-modulation direct detection (IMDD) transmission system, where it broke the world record in IMDD optical
https://www.rd.ntt/e/research/JN202206_18608.html
Ultra-wideband Analog ICs Using InP Semiconductors to Overcome the Limits of Optical Communications | NTT R&D Website
expand transmission capacity of optical communication systems. For example, a new technology known as
https://www.rd.ntt/e/research/JN202602_38170.html
Research on Multi-core Optical Fiber, the Foundation of the New Era of High-capacity Communications, and Amplification to Limit Power Increases | NTT R&D Website
Research on Multi-core Optical Fiber, the Foundation of the New Era of High-capacity
https://www.rd.ntt/e/research/JN202412_30715.html
N11_leaf_e.pdf
site to the field Utilizing high-capacity optical paths to transmit images with high resolution and
https://www.rd.ntt/forum/2023/doc/N11_leaf_e.pdf
Photonic Gateway and Related Optical Access Technologies to Achieve the All-Photonics Network|NTT R&D Website
, and its devices. We are developing an optical access system for achieving high flexibility, low
https://www.rd.ntt/e/research/JN202102_10379.html
High-output Optical Transmitter and High-sensitivity Optical Receiver for 400-Gbit/s 40-km Fiber-amplifier-less Transmission | NTT R&D Website
-amplifier-less Transmission | NTT R&D Website NTT R&D Website Research&Activity High-output Optical
https://www.rd.ntt/e/research/JN202206_18469.html
D04-01-e.pdf
addition, End-to-end optical path enables highly immersive services that require high-capacity and low
https://www.rd.ntt/forum/2024/doc/D04-01-e.pdf
High-frequency-band Distributed Antenna System Technology Exploring the Possibilities of Higher Frequency Bands for Mobile Communications | NTT R&D Website
system" is a promising technology to meet this demand. It can achieve stable high-speed and high-capacity
https://www.rd.ntt/e/research/JN202404_25756.html
R&D Activities of Core Wireless Technologies toward 6G Radio Access | NTT R&D Website
communication system (6G) expected to be implemented in the 2030s has been advanced to achieve extreme high data
https://www.rd.ntt/e/research/JN202205_18140.html
Optical fiber access technologies | NTT Access Network Service Systems Laboratories | NTT R&D Website
transmission capacity using SDM optical fiber design, the merging of system-power-saving/SDM-optical
https://www.rd.ntt/e/as/theme/02.html
Basic Technologies toward the All-Photonics Network | NTT R&D Website
, so we are studying large-capacity optical transmission system/device technology using, for example
https://www.rd.ntt/e/research/JN20200126_h.html
NTT(List of recommended exhibits) | Exhibits | Tsukuba Forum 2026
‑control technique that leverages optical‑wireless cooperative transmission to enable stable, high‑quality
https://www.rd.ntt/e/as/tforum/companylist_nttc6.html
Innovative Network for 2030 (Beyond 2020) | NTT R&D Website
technology, we plan to establish ultra-high-speed optical signal transmission technologies (ultra-high-speed
https://www.rd.ntt/e/research/JN20200122_h.html
Photonic Transport Network Systems Project | NTT R&D Website
striving to increase the speed and capacity of optical transmission networks, make optical interfaces “open
https://www.rd.ntt/e/ntc/theme/transport.html
Wireless Systems Technologies for Present and Future Services | NTT R&D Website
transmission through optical fibers. High-frequency-band analog RoF technology uses radio-signal-processing in
https://www.rd.ntt/e/research/JN20200267_h.html
Wireless Entrance Project | NTT Access Network Service Systems Laboratories | NTT R&D Website
communications, such as unprecedented large-capacity high-speed communications and ultra-wide-area IoT. Since the
https://www.rd.ntt/e/as/team_researchers/team/01.html
Masahiro Nakagawa | NTT R&D Website
high-capacity optical signal transmission," IEICE Transactions on Communications, vol. E104-B, no. 4
https://www.rd.ntt/e/organization/researcher/special/s_099.html
10G-EPON System | NTT R&D Website
branching, and large capacity. This is a 10G-class access system that provides a multi-access service
https://www.rd.ntt/e/research/AS0056.html
Accelerating Practical Application of 4-core Optical Fiber with the Same Cladding Diameter as Current Optical Fiber and Advancing Power-over-fiber Technology | NTT R&D Website
-communication capacity, it is necessary to not only improve the capacity of the transmission system but also the
https://www.rd.ntt/e/research/JN202502_32098.html
Heterogeneous Materials and Devices Research Group|Device Technology Laboratories|NTT R&D Website
, 2019 NTT and JAXA Launch Joint Research for Ultra‑High‑Speed, Large‑Capacity, and Secure Optical
https://www.rd.ntt/e/dtl/technology/heterogeneous_materials_and_devices_research_group_ntt_device_technology_laboratories_ntt_rd_website.html
Kazuhide Nakajima | NTT R&D Website
, "Key Enabling Technologies for High-Capacity Transport System with Channel Rate over Terabit per Second
https://www.rd.ntt/e/organization/researcher/fellow/f_012.html
ANSL_inner_0205_Blue_e_A
and modulariza- tion of various access system functions. Ultra-large-capacity optical fiber technology
https://www.rd.ntt/e/download/ANSL_pdf_e.pdf
Report on the NTT R&D Forum — Road to IOWN 2022|NTT R&D Website
platform for datacenters. One of the main benefits of the APN is high transmission capacity for conveying
https://www.rd.ntt/e/forum/2022/keynote_2.html
Activities for Fixed-mobile Convergence Services in the IOWN Initiative | NTT R&D Website
remarkably low power consumption, high quality, high capacity, and low latency, properties difficult to
https://www.rd.ntt/e/research/JN202411_30129.html
Achieving the Word's Highest Wireless Transmission Rate by Delving into Theories That Appeared about 100 Years Ago | NTT R&D Website
-generation mobile communications system (5G) services, which feature high speed, large capacity, low latency
https://www.rd.ntt/e/research/JN202403_25301.html
Network-service Technology Enabled by the All-Photonics Network|NTT R&D Website
-synchronized transmission of control messages in an E2E manner using the ultra-high capacity of optical fiber
https://www.rd.ntt/e/research/JN202108_14878.html
Secure Optical Transport Network|NTT R&D Website
give value to these services. Using terms from the field of communications, large capacity means high
https://www.rd.ntt/e/research/JN202111_16202.html
Study on Open All-Photonic Network in IOWN Global Forum | NTT R&D Website
in distant locations with high-capacity optical paths on demand with target quality of transport
https://www.rd.ntt/e/research/JN202203_17536.html
High-Speed Analog Circuit Research Group|Device Technology Laboratories|NTT R&D Website
various system performance metrics. For example, by applying our technology to optical transmission
https://www.rd.ntt/e/dtl/technology/high-speed_analog_circuit_research_group_ntt_device_technology_laboratories_ntt_rd_website.html
Standardization Trends in Technologies Related to Fixed-line Networks | NTT R&D Website
optical fiber cable technology will see progress in the studies of high-density and high-capacity cables
https://www.rd.ntt/e/research/JN202311_23702.html
Disaggregated Computing, the Basis of IOWN|NTT R&D Website
information processing system with a high processing capacity that is beyond today’s technologies is required
https://www.rd.ntt/e/research/JN202105_13586.html
Low-latency and Energy Efficient Technologies for New Optical Access Networks | NTT R&D Website
Technologies for New Optical Access Networks Wireless Technologies for Accelerating High-capacity Transmission
https://www.rd.ntt/e/research/JN202307_22288.html
NTT successfully demonstrates the world's first 100 Gbps large-capacity wireless transmissions | NTT R&D Website
achieving this capacity at the present time is optical fiber connections. OAM multiplexing transmission
https://www.rd.ntt/e/research/NW99-350.html
rd2025-e.pdf
contributions to global long-distance, high-capacity optical fiber network through the development of
https://www.rd.ntt/e/download/rd2025-e.pdf
Controller Technology to Accelerate Societal Implementation of IOWN APN: Optical Network Controller | NTT R&D Website
-capacity, and low-latency information transmission by introducing optical technology into all components
https://www.rd.ntt/e/ns/optical_network_controller/interface_specification.html
Updates | NTT R&D Website
Optical Fiber, the Foundation of the New Era of High-capacity Communications, and Amplification to Limit
https://www.rd.ntt/e/update_information/
Contributing to the Advancement of the IOWN APN through Research on New Optical Access Networks that Speed Up the Evolution of Information and Communication Services | NTT R&D Website
. Thanks to its low power consumption, high-capacity, high-quality, and low-latency transmission
https://www.rd.ntt/e/research/JN202510_36701.html
Photonics-electronics convergence hardware technology, aimed at revolutionizing the network|NTT R&D Website
hardware technology, supporting large-capacity optical transmission technology and revolutionizing networks
https://www.rd.ntt/e/communication_device/0002.html
High-performance Optical Devices with Integration of Heterogeneous Materials Accelerating the Future of Photonics-electronics Convergence Technologies | NTT R&D Website
optical device The transmission capacity of electrical wiring has come to be viewed as a bottleneck in
https://www.rd.ntt/e/research/JN202401_24548.html
NTTAS_EN_omote
high speed optical fiber communication services at lower cost. Analyze network device alarms and past
https://www.rd.ntt/e/download/NTTAS_2024Pamphlet_EN.pdf
Efforts of NTT IOWN Integrated Innovation Center toward the Early Deployment of IOWN | NTT R&D Website
high-speed, large-capacity, and low-power data transmission, NTT laboratories are also researching and
https://www.rd.ntt/e/research/JN202311_23714.html
NTT_TRFSW_2022_E.pdf
-security, high-capacity, low-latency optical transmission In
https://www.rd.ntt/e/download/NTT_TRFSW_2022_E.pdf
Access Network Technologies to Implement IOWN | NTT R&D Website
capacity of wireless and optical communications, reduce the delay of access links, and expand coverage for
https://www.rd.ntt/e/research/JN202207_18784.html
R&D Activities to Implement an Access Network for the IOWN Era | NTT R&D Website
optical fiber access, infrastructure, access system, wireless access, and operation technologies. To
https://www.rd.ntt/e/research/JN202408_28842.html
Efficiently Accommodating High-frequency-band Wireless Systems by Using Analog Radio-over-fiber | NTT R&D Website
-transmission capacity, it is effective to use radio waves in the high-frequency band (such as millimeter waves
https://www.rd.ntt/e/research/JN20200315_h.html
About Us | NTT Access Network Service Systems Laboratories | NTT R&D Website
development centered on "Access System Technology" that provides high-speed, high-capacity, and low-cost
https://www.rd.ntt/e/as/overview/
論文|NTT物性科学基礎研究所|NTT R&D Website
(1987). N. Uesugi, O. Kawata, and Y. Negishi "Dispersion-Shifted Optical Fiber Cable For High-Capacity
https://www.rd.ntt/brl/result/publications/paper_1987.html
Publications | NTT Basic Research Laboratories | NTT R&D Website
. Kawata, and Y. Negishi "Dispersion-Shifted Optical Fiber Cable For High-Capacity Trunk Transmission-Line
https://www.rd.ntt/e/brl/result/publications/paper_1987.html
Senior Distinguished Researcher Jun-ichi Kani | NTT Access Network Service Systems Laboratories | NTT R&D Website
the optical access network, a world's first. Although a digital coherent receiver system has been used
https://www.rd.ntt/e/as/team_researchers/researcher/02.html
List of exhibits|NTT R&D FORUM 2023 — IOWN ACCELERATION Report
interactive communication with Layer 1 video transmission Deliver high-resolution video signals with low
https://www.rd.ntt/e/forum/2023/exhibit.html
APN-controller Technology for IOWN Service Provision and Expansion | NTT R&D Website
-resolution and high-frequency input/output optical-level-monitoring functions and transmission-line fiber
https://www.rd.ntt/e/research/JN202311_23716.html
Highly Efficient, Low-cost Optical Communications through Optimal Communication Path Design Technology | NTT R&D Website
day are supported by optical communication technology, which enables long-distance, high-capacity
https://www.rd.ntt/e/research/JN202509_36072.html
Keynote speech 2|Report on the NTT R&D Forum 2020|NTT R&D Website
Platforms (1) Photonic Direct Communication Photonic direct communication provides high-capacity optical
https://www.rd.ntt/e/forum/2020/keynote_2.html
Creating New Value: Access Networks to Support a Sustainable Society | NTT R&D Website
-friendly manner. It creates optical paths at the petabit level, which is ultra-high-capacity transmission
https://www.rd.ntt/e/research/JN202408_28840.html
Frontier Communication Laboratory | NTT Network Innovation Laboratories | NTT R&D Website
(light) extensively from the network to the terminal will enable high-quality, large-capacity, and low
https://www.rd.ntt/e/mirai/organization/product_2/
Optical Device Technology for Next-generation Computing Using Light | NTT R&D Website
, including optical interconnection, in response to high-capacity transmission technology used for optical
https://www.rd.ntt/e/research/JN202206_18551.html
Remote Robot Control with Haptic Feedback Enabled by Low-latency Transport and Precision Bilateral Control Technologies | NTT R&D Website
-capacity, Low-delay Transmission Technologies Utilizing Optical, Radio, and Acoustic Waves for IOWN/6G
https://www.rd.ntt/e/research/JN202405_26175.html
Report on the NTT R&D Forum — Road to IOWN 2022|NTT R&D Website
IOWN are 100 times more energy efficiency and have 125 times more transmission capacity and 1/200 end
https://www.rd.ntt/e/forum/2022/keynote_1.html
NTT R&D Forum - Road to IOWN 2022|NTT R&D Website
-capacity optical paths in the IOWN era N-N05IOWN NowUltra-low-latency and long-distance 8K-video
https://www.rd.ntt/e/forum/2022/exhibit.html
Research on Ultra-high-speed Mach-Zehnder Electro-optic Modulators for Long-distance Optical Transmission of 1 Terabit per Second|NTT R&D Website
Research on Ultra-high-speed Mach-Zehnder Electro-optic Modulators for Long-distance Optical
https://www.rd.ntt/e/research/JN202201_16974.html
List of Exhibitions | NTT R&D Website
Distributed antenna system utilizing analog-RoF Providing a high-capacity and stable wireless communication
https://www.rd.ntt/e/forum/2024/exhibit.html
Unlimited Innovation for a Global Sustainable Society by IOWN | NTT R&D Website
uses optical fibers for long-distance data transmission and has been researching optical technology to
https://www.rd.ntt/e/forum/2024/keynote_3.html
NTT R&D Forum 2019 Report|NTT R&D Website
increase in the future via All-Photonics Networks (APN) for IOWN. APNs provide high-capacity optical fiber
https://www.rd.ntt/e/forum/2019/
NTT R&D FORUM — Road to IOWN 2021|Exhibits| NTT R&D Website
high-speed high-capacity optical path N06 Optical access network based on concatenated loop topology
https://www.rd.ntt/e/forum/2021/exhibits.html
Yasushi Takatori | NTT R&D Website
) "High Spectral Density Optical Communication Technologies," Springer, 2010, Co-Author. "Introduction to
https://www.rd.ntt/e/organization/researcher/superior/s_029.html
Progress in the Development of IOWN Technology | NTT R&D Website
autonomous vehicles, communications should be connected continuously. Since high-capacity mobile
https://www.rd.ntt/e/research/JN202203_17534.html
鷹取 泰司 | NTT R&D Website
通信概論』(電気通信協会, 2022年, 分担執筆) 『プライベートワイヤレスネットワーク入門』(リックテレコム, 2021年, 分担執筆) "High Spectral Density Optical
https://www.rd.ntt/organization/researcher/superior/s_029.html
Network Control System Configuration Technologies for Advanced Network Operation | NTT R&D Website
technologies to delay-managed transmission systems through the collection of communication delay in optical
https://www.rd.ntt/e/research/JN202211_20114.html
What's IOWN? - Change the World | NTT R&D Website
joint research project with the aim of developing an ultra-high-capacity and secure optical and wireless
https://www.rd.ntt/e/research/JN20200109_h.html
Researchers Have a Responsibility to Create New Knowledge and Technology and Let That Responsibility Be Rewarding | NTT R&D Website
transmission using optical technology with CMOS technology to enable high-speed signal processing that takes
https://www.rd.ntt/e/research/JN202303_21273.html
マラソン × 超低遅延通信技術|NTT R&D Website
high-speed, high-capacity communications and vast computing resources by using innovative technologies
https://www.rd.ntt/e/research/JN202110_15557.html