NTT: World's Largest Capacity of 1.2 Tbit/s Per Wavelength Achieved by Newly Developed Digital Coherent Signal Processing Circuit and Optical Device
NTT Corporation (NTT, Head office: Chiyoda-ku Tokyo; President & CEO: Akira Shimada) has developed a digital coherent signal processing circuit and optical device that achieves the world's largest capacity of 1.2 Tbit/s per wavelength for optical transmission, which is 1.5 times faster than before. With this development, NTT tackles the challenge of achieving advanced optical transmission technology that can economically and significantly expand the capacity of existing systems while reducing the power consumption of communication devices.
The technology has also achieved the world’s highest optical signal modulation speed of 140 Giga baud and enables double the previous world record optical transmission distance of 800 Gbit/s. As a result, the capacity of optical transmission systems will increase by 12 times and the power consumption per bit will be reduced to 10% of the widely used commercial system. The improvements in the performance and power consumption of optical transmission systems should contribute to the All-Photonics Network foundational to the IOWN1 concept.
Our digital coherent signal processing circuit combines cutting-edge coded modulation with transmission performance approaching the theoretical limit and newly developed forward error correction that can correct bit errors in large amounts of data with low power consumption. This results in flexible coded modulation that maximizes the potential of high-speed optical devices. Furthermore, by utilizing a power-efficient algorithm to equalize signal distortion in the optical fiber transmission channel and the advanced CMOS processes, we have achieved a digital signal processing of 1.2 Tbit/s per wavelength with low power consumption.
The transceiver consists of a cutting-edge digital coherent signal processing circuit and a 140-Giga baud class optical device with the world's widest-class opto-electrical response bandwidth. In our approach, by increasing the modulation speed from 100 Giga baud to 140 Giga baud, higher resistance to waveform distortion and optical amplification noise caused by transmission could be achieved. As a result, the previous record transmission distance of 800 Gbit/s signals can be extended by more than twice that of the 100 Giga baud devices.
Toward the development of IOWN, NTT aims to create an innovative network with high capacity, low latency, flexibility, and low power consumption by continuing to expand and develop end-to-end photonics technology. We will promote the creation of economical, large-capacity, low-power-consumption networks by leveraging advanced optical transmission systems based on innovative technology. We also intend to collaborate with both international and domestic partners so that our developments can be valuable and beneficial for communities worldwide. You can access the full report about this development here.
1 IOWN: https://group.ntt/jp/newsrelease/2019/05/09/190509b.html (Japanese)
To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.
View source version on businesswire.com: https://www.businesswire.com/news/home/20220905005467/en/
Contact information
Media Contact
NTT Corporation
Science and Core Technology Laboratory Group, Public Relations Section
nttrd-pr@ml.ntt.com
About Business Wire
For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
Symrise and Aplantex Confirm an Agreement to Establish a Partnership14.10.2025 13:00:00 EEST | Press release
Symrise AG ("Symrise") and Aplantex Bio ("Aplantex") agree on a partnership covering new technologies for accessing plant-based molecules as raw material once the molecules of interest have been developed and produced by Aplantex. "We are intrigued by the potential of Aplantex’s innovative green biotechnology process to help us in securing potential access to hard-to-source plant-based molecules in the context of the significant impacts of climate change," underlines Dr. Jakob Ley, director of Biobased Ingredients Research at Symrise. Aplantex has been, since 2024, diligently involved in the research & development work to produce the initial molecule of interest requested by Symrise. "Having already validated our process with the production of Apigenin, Orientin, Vitexin, and Luteolin, four molecules recognized for their antioxidant, anti-inflammatory, antimicrobial, and anti-aging properties, we were able to reach several milestones of Symrise’s validation protocol in record time. We
euNetworks Delivers New Fully Diverse Long Haul Network Route, Enabling Two Short Paths Connecting Frankfurt to Marseille and Milan14.10.2025 11:00:00 EEST | Press release
euNetworks Group Limited (“euNetworks”), a European critical bandwidth infrastructure company, has today announced the completion of a new long haul fibre network route between Frankfurt and Zurich. This new network enables two short diverse paths between the many submarine cable landings along the Mediterranean coast, and the major data centre market of Frankfurt. The new route completes one of two fully diverse euNetworks long haul routes, with the option to either go via Milan and Zurich or via Marseille, Lyon and Geneva. euNetworks undertook this network investment to increase diversity options for its customers, enabling them to avoid points of failure where routes converge and cross, or otherwise take a long detour via Paris or Munich for the diverse path. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251014607897/en/ CEO of euNetworks The route between Frankfurt and the Mediterranean is a critical European pathway fo
Europe’s Tech Services Market Slows in Q3, Despite Strong AI-Driven Cloud Demand: ISG Index™14.10.2025 11:00:00 EEST | Press release
Europe’s market for technology services and software slowed in the third quarter despite continuing strong demand for AI, according to the latest state-of-the-industry report from Information Services Group (ISG) (Nasdaq: III), a global AI-centered technology research and advisory firm. The EMEA ISG Index™, which measures commercial outsourcing contracts with annual contract value (ACV) of US $5 million or more, shows third-quarter ACV for the combined market (both managed services and cloud-based as-a-service) rose 5 percent, to US $9.7 billion. Although the market has grown for seven consecutive quarters, averaging 14 percent quarterly growth during that span, the rate of growth in the third quarter was the lowest since the second quarter last year. “The market in Europe continues to be buoyed by strong, double-digit growth in cloud services as companies race to realize their AI ambitions,” said Steve Hall, president, ISG EMEA and the firm’s chief AI officer. “That growth, however, m
Hamad International Airport's Senior Operations Manager appointed as CEO of Ancona International Airport14.10.2025 10:00:00 EEST | Press release
Ancona International Airport (“AIA”), a Njord Partners portfolio company, is pleased to announce the appointment of Giorgio Buffa as its new Chief Executive Officer, effective 13 October 2025. Giorgio Buffa joins Ancona from Doha’s Hamad International Airport, where he was the Senior Operations Manager. He brings over 20 years of dedicated experience in the airport and airline industries, having spent his entire career in aviation. He is recognised for driving operational excellence and pioneering sustainable development at Hamad International Airport, which has, for multiple years, been named the "World's Best Airport" by Skytrax, setting new standards in the airport sector. For the past nine years, he has been instrumental in overseeing key operational functions and successfully navigated the COVID-19 period as well as major events such as the FIFA World Cup. Formerly a pilot with Alitalia and Air One, Giorgio has held various senior leadership roles in airport operations, including
PPG introduces PPG MIX‘N’SHAKE automated stirring technology for body shops14.10.2025 09:30:00 EEST | Press release
PPG (NYSE: PPG) today announced the introduction of PPG MIX‘N’SHAKE™ automated stirring technology designed to eliminate traditional manual stirring methods in the automotive refinish industry. The system, which is available globally, improves paint mix consistency, reduces consumable waste and saves time for painters and body shops. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251013065453/en/ PPG MIX’N’SHAKE™ automated stirring technology replaces manual stirring processes to ensure a homogenized paint mix, complete color accuracy, and a better workplace. The PPG Mix‘n’Shake system will debut at the EQUIP AUTO trade show in Paris taking place Oct. 14-18. PPG will also showcase its PPG LINQ™ digital ecosystem, which is a finalist for the prestigious EQUIP AUTO Innovation Award. Because the PPG Mix‘n’Shake system eliminates manual stirring, it ensures consistent color accuracy, reduces rework and boosts productive work hou
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom