The Keysight N7004A is a 33 GHz optical-to-electrical converter that directly transforms optical signals into electrical signals for analysis on compatible Infiniium real-time oscilloscopes. Purpose-built for high-speed optical communication testing, component characterization, and reference receiver validation, the N7004A integrates via AutoProbe II to deliver automated probe configuration and real-time optical measurements without additional software licensing.
Technical Specifications
• Electrical Bandwidth: DC to 33 GHz typical (-3 dBe); 33 GHz with Brickwall filter; 22 GHz with 4th order Bessel Thomson filter
• Wavelength Range: 750 nm to 1650 nm, covering 850 nm, 1310 nm, and 1550 nm bands
• Optical Input Power: 4 to 8 mW
• Optical Return Loss: −14 to −18.5 dB
• Rise Time (10%–90%): 13.3 psec typical with Brickwall filter; 9.4 to 17.7 psec range
• Data Rate Support: Up to 28 Gbps
• Fiber Compatibility: 50/125 µm multimode; 9/125 µm single-mode compatible
• Optical Connector: FC/PC
• Electrical Output Interface: AutoProbe II
– Key Features
• Built-in measured S-parameter correction filters optimize frequency response and measurement accuracy
• Dark calibration mode improves extinction ratio measurement precision
• Raw signal viewing displays unfiltered optical transmissions for detailed analysis
• Single-shot transient event capture without requiring external clock triggering
• Automatic probe type and attenuation configuration upon oscilloscope connection
• Optical measurement software included in Infiniium baseline software v05.70 or higher at no cost
– Typical Applications
• High-speed optical communication link testing and validation
• Optical transceiver and component characterization
• Industry standard reference receiver testing
• Raw optical transmitter response measurement and analysis
– Compatibility & Integration
The N7004A connects directly to Keysight Infiniium UXR-Series, V-Series, 90000X-Series, Z-Series, and 90000 Q-Series (discontinued) oscilloscopes via the AutoProbe II interface. This connection provides module power and enables automatic configuration of probe settings and measurement parameters.















