Keysight introduces 220 GHz Lightwave Component Analyser
Keysight Technologies has introduced the N4378A Lightwave Component Analyser (LCA), delivering fully calibrated S-parameter measurements up to 220 GHz to help engineers overcome the growing test challenges of next‑generation optical components used in artificial intelligence (AI) and data centre applications.
Driven by AI and machine learning workloads, data centre networks are rapidly transitioning to higher data rates, requiring precise characterisation of electro‑optical (E‑O) and opto‑electronic (O‑E) components at ever‑higher frequencies. Designed to integrate with Keysight’s PNA-X Vector Network Analyser and frequency extenders, the N4378A LCA provides a scalable platform that enables single-sweep, broadband measurements up to 220 GHz at 1310 nm and 1550 nm wavelengths.
The N4378A LCA is supported by enhanced software that simplifies setup and improves measurement confidence. Advanced user guidance and analysis capabilities help engineers validate performance, reduce design risk, and accelerate product development.
Key benefits of the Lightwave Component Analyser include:
Enables single-sweep characterisation up to 220 GHz, providing deeper insight into photodetectors and optical modulators.
Supports O-band data centre interconnects and C/L‑band terrestrial and submarine applications with a single instrument.
Validates next-generation dual‑drive optical modulators using differential measurement capability.
Protects sensitive 0.5 mm coaxial connections and enables safe repositioning between calibration and measurement with a quick-release mechanical fixture.
With the introduction of the N4378A Lightwave Component Analyser, Keysight is helping shape the future of high‑speed optical innovation. Keysight collaborated with leading industry partners for RF probes, coaxial adapters, and test cables for the 0.5 mm coaxial ecosystem to deliver complete measurement capabilities.
Dr. Joachim Peerlings, Vice President of Network and Data Centre Solutions at Keysight, said: “With the introduction of Keysight’s 220 GHz Lightwave Component Analyser, we are enabling the industry to validate transceiver component designs for next-generation optical interconnects. By combining industry-leading optical bandwidth with wideband wavelength coverage and a robust 0.5 mm coaxial ecosystem, engineers can correlate simulation with real-world measurements and accelerate time-to-market.”
As AI and cloud architectures continue to push the limits of bandwidth and complexity, Keysight’s advanced photonics test solutions empower engineers to explore new design frontiers and deliver the optical interconnects that will define the next era of data centre performance.
Keysight will demonstrate the new Lightwave Component Analyser for the first time at OFC 2026, March 17-19, 2026 in Los Angeles.
