Enhancements to Keysight’s 89600 VSA software enable AttoTude to accelerate characterization of THz technology for AI data centers
SANTA ROSA, Calif., MARCH 19, 2026
Keysight Technologies, Inc. (NYSE: KEYS) today announced that AttoTude Inc., a provider of terahertz (THz) interconnect technology for AI and hyperscale data center applications, has adopted enhanced signal analysis capabilities in Keysight’s 89600 Vector Signal Analysis (VSA) software to accelerate development of its THz technology.
AttoTude is transforming data center interconnects with an ASIC-based transmission over low-loss THz waveguides for AI scale-up, addressing the bandwidth, reliability, and energy efficiency challenges facing AI infrastructure. The company’s THz platform operates at frequencies up to 1 THz, with data rates reaching 448G PAM4 modulation, suitable for next-generation AI clusters and 200T switches.
Keysight’s UXR Oscilloscope and 89600 VSA software, with the VSA’s FlexFrame measurement capability, provide AttoTude with critical signal analysis tools for characterizing high-speed waveforms modulated onto THz carriers. Recent enhancements to FlexFrame include improved frequency estimation algorithms that work reliably in challenging channel conditions, streamlined predistortion and Rx equalization capabilities, and expanded modulation format support.
Dave Welch, Co-founder and CEO of AttoTude, said: “As we push the boundaries of THz communications for AI data centers, it is essential to have advanced signal analysis tools that can keep pace with our innovations. Keysight’s UXR Oscilloscope and 89600 VSA software with FlexFrame capabilities have proven invaluable in validating and evolving our THz technology for 224G and 448G PAM4 solutions. Keysight’s supportive partnership with our team significantly improved the speed and confidence of our learning cycles.”
Joachim Peerlings, Vice President and General Manager of Keysight’s Networks and Data Center Group, said: “To keep pace with the growing compute demand that is needed for AI, the industry welcomes new companies with innovative concepts that add to the breadth of solutions that Keysight enables. AttoTude represents the kind of innovative customer that drives us to continually advance our signal analysis capabilities. We are proud to enable its pioneering work in THz interconnect technology for AI applications.”
Resources
At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we're delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product life cycle. We're a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world. Learn more at Keysight Newsroom and www.keysight.com.
andrea.mueller@keysight.com
Jenny Gallacher, Europe
jenny.gallacher@keysight.com
Fusako Dohi, Asia
fusako_dohi@keysight.com
Link to Press Release
SANTA ROSA, Calif., MARCH 19, 2026
Keysight Technologies, Inc. (NYSE: KEYS) today announced that AttoTude Inc., a provider of terahertz (THz) interconnect technology for AI and hyperscale data center applications, has adopted enhanced signal analysis capabilities in Keysight’s 89600 Vector Signal Analysis (VSA) software to accelerate development of its THz technology.
AttoTude is transforming data center interconnects with an ASIC-based transmission over low-loss THz waveguides for AI scale-up, addressing the bandwidth, reliability, and energy efficiency challenges facing AI infrastructure. The company’s THz platform operates at frequencies up to 1 THz, with data rates reaching 448G PAM4 modulation, suitable for next-generation AI clusters and 200T switches.
Keysight’s UXR Oscilloscope and 89600 VSA software, with the VSA’s FlexFrame measurement capability, provide AttoTude with critical signal analysis tools for characterizing high-speed waveforms modulated onto THz carriers. Recent enhancements to FlexFrame include improved frequency estimation algorithms that work reliably in challenging channel conditions, streamlined predistortion and Rx equalization capabilities, and expanded modulation format support.
Dave Welch, Co-founder and CEO of AttoTude, said: “As we push the boundaries of THz communications for AI data centers, it is essential to have advanced signal analysis tools that can keep pace with our innovations. Keysight’s UXR Oscilloscope and 89600 VSA software with FlexFrame capabilities have proven invaluable in validating and evolving our THz technology for 224G and 448G PAM4 solutions. Keysight’s supportive partnership with our team significantly improved the speed and confidence of our learning cycles.”
Joachim Peerlings, Vice President and General Manager of Keysight’s Networks and Data Center Group, said: “To keep pace with the growing compute demand that is needed for AI, the industry welcomes new companies with innovative concepts that add to the breadth of solutions that Keysight enables. AttoTude represents the kind of innovative customer that drives us to continually advance our signal analysis capabilities. We are proud to enable its pioneering work in THz interconnect technology for AI applications.”
Resources
- Product Page: Vector Signal Analysis Software (89600 VSA Software)
- Product Page: UXR Oscilloscope
At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we're delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product life cycle. We're a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world. Learn more at Keysight Newsroom and www.keysight.com.
Contacts
Andrea Mueller, Americasandrea.mueller@keysight.com
Jenny Gallacher, Europe
jenny.gallacher@keysight.com
Fusako Dohi, Asia
fusako_dohi@keysight.com
Link to Press Release