The HP 8152A Optical Average Power Meter is a precision instrument for absolute, relative, and ratio measurements across fiber optic testing, R&D, production, and incoming evaluation. It features dual independent optical inputs, manual front-panel control, and remote operation via HP-IB (GPIB) interface. The mainframe displays power readings from +30 dBm to −80 dBm at 0.01 dBm resolution, with automatic wavelength correction to ensure accuracy across broad spectral ranges. The instrument measures output power of active optical components, loss and attenuation of passive components, and power ratios of optical splitters. Final measurement accuracy depends on the optical head selected.
Technical Specifications
Mainframe
• Display Range: +30 dBm to −80 dBm
• Display Resolution: 0.01 dBm/dB
• Optical Inputs: Two independent channels
• Control: Manual (front panel) and programmable (HP-IB/GPIB)
• Wavelength Correction: Automatic sensitivity calibration
HP 81520A Optical Head (450 nm to 1020 nm)
• Sensor: Silicon (Si), 5 mm diameter
• Measurement Range: +10 dBm to −100 dBm
• Linearity: −80 dBm to +3 dBm
• Accuracy: ±2.2% (600–1020 nm)
• Maximum Power Density: 10 mW/mm²
HP 81521B Optical Head (850 nm to 1700 nm)
• Sensor: Cooled Germanium PIN diode, 5 mm diameter
• Measurement Range: +3 dBm to −80 dBm
• Linearity: +3 dBm to −70 dBm
• Resolution: 0.01 dB
• Accuracy: ±5% (traceable calibration)
• Maximum Power Density: 10 mW/mm²
HP 81522A Optical Head (1000 nm to 1550 nm)
• Sensor: Indium Gallium Arsenide (InGaAs) PIN diode, 5 mm diameter
• Measurement Range: −30 dBm to −100 dBm
• Resolution: 0.01 dB
• Linearity: 0 dBm to −60 dBm
– Key Features
• Supports standard single-mode and multimode fiber
• Interchangeable optical heads for wavelength-specific applications
• High-resolution power measurements with 0.01 dBm/dB capability
• Automated wavelength-based sensor calibration
– Typical Applications
• Insertion loss and attenuation characterization
• Active component output power verification
• Optical splitter power distribution measurement
• Source stability compensation during ratio measurements
– Compatibility & Integration
The HP 8152A mainframe operates with three dedicated optical heads (sold separately). Fiber compatibility includes standard single-mode and multimode types. Remote control via HP-IB enables integration into automated test systems.
