The Keysight N7745A Optical Multiport Power Meter enables simultaneous power measurements across eight channels, delivering high-speed optical characterization for multiport components and arrays of single-port devices. This 1U half-rack instrument measures optical power from −80 dBm to +10 dBm across the 1250–1650 nm band with ±2.5% power uncertainty and up to 65 dB dynamic range. It acquires data at up to 1 MHz sampling rate and logs up to 1 million measurement points per port, making it ideal for manufacturing test, wavelength-selective characterization, and PON splitter verification.
Technical Specifications
• Sensor Ports: 8 channels with InGaAs photodiode elements
• Wavelength Range: 1250–1650 nm; specifications apply to 1250–1625 nm
• Power Range: −80 dBm to +10 dBm; maximum safe input +16 dBm
• Power Uncertainty: ±2.5% at reference conditions; ±4.5% total uncertainty
• Port-to-Port Uncertainty: Typically ±0.05 dB; polarization correlation 50 dB (1520–1580 nm)
• Applicable Fiber: Single-mode and multimode ≤62.5 µm core, NA ≤0.24
– Key Features
• Fast power range switching for efficient multi-channel measurements
• Quad-adapter connector support: MU, FC, SC, LC, and bare fiber
• One-click zeroing with optional N7740ZI four-port adapter
• LXI-compliant LAN interface plus USB and GPIB connectivity
• TTL trigger input/output for test automation
• AC power supply: 100–240 V, 50/60 Hz; max 60 VA consumption
– Typical Applications
• Testing multiplexers, wavelength-selective switches, and ROADMs
• PON splitter characterization and verification
• Optical transceiver and amplifier power measurement
• Passive component validation in manufacturing environments
– Compatibility & Integration
Works with Keysight’s Lightwave measurement platform and existing optical power meters. Supports N7740 fiber-optic connectivity and standard bare fiber solutions (81000BI).
