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220 GHz

The N4378A Lightwave Component Analyzer delivers fully calibrated S-parameter measurements of opto-electronic and electro-optical components up to 220 GHz at 1310 nm and 1550 nm wavelengths.

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  • Maximum frequency

    220 GHz

  • Type

    Lightwave Component Analyzer

  • Fiber mode

    Single-mode

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Highlights

The N4378A Lightwave Component Analyzer (LCA) delivers fully calibrated opto-electronic S-parameter measurements up to 220 GHz, addressing the growing test challenges of next-generation optical components used in AI and data-center applications. It combines newly designed optical test heads with the NA5305A (170 GHz) or NA5307A (250 GHz) Frequency Extenders, and the 85065A Precision Calibration Kit 0.5 mm. The configuration is completed by one of Keysight’s PNA/PNA-X Vector Network Analyzers (VNA) and the N5292A Test Set Controller. The new LCA enables engineers to perform single-sweep measurements up to 220 GHz at 1310 nm and 1550 nm wavelengths using on-board lasers. With additional laser sources, measurements at more wavelengths in the O-band and the C/L-band can be covered.

With 220 GHz bandwidth, engineers can verify the design of their 1.6/ 3.2 Tb/s optical transmitter and receiver components and refine their simulations with real-world measurements.

The most complete configuration for the characterization of photodetectors and optical modulators includes an N4378RA optical receiver and an N4378TA optical transmitter that is connected to an N4378CA transmitter controller. Both optical heads are mounted on an N4378FA mechanical fixture that ensures proper mechanical alignment between the optical and electrical head and allows for quick and safe repositioning between calibration and measurement. This configuration requires a two or three NA5307A/NA5305A frequency extenders for optical components, four for electrical components with symmetric inputs/ outputs.

A configuration for the measurement of optical modulators consists of only the N4378RA optical receiver and a minimum of two frequency extender heads. Three NA5307A/NA5305A frequency extenders are required for modulators with symmetrical/ dual-drive input.

The measurement of photodetectors requires only the N4378TA optical transmitter, the N4378CA transmitter controller, and two NA5307A/NA5305A frequency extenders.

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