The HP 81632A Optical Power Sensor Module delivers precise optical power measurements across the near-infrared spectrum for integration into HP/Agilent modular test platforms. This InGaAs photodiode-based sensor measures optical power from −70 dBm to +3 dBm across wavelengths from 800 nm to 1650 nm with ±2.5% absolute accuracy and ±0.5% repeatability. The module accepts light via SC or FC fiber connectors and supports both single-mode and multi-mode fibers through standard adapters.
Technical Specifications
• Power measurement range: −70 dBm to +3 dBm
• Wavelength range: 800 nm to 1650 nm (factory calibrated; dependent on model variant)
• Absolute accuracy: ±2.5% (varies with wavelength and temperature)
• Repeatability: ±0.5%
• Detector: InGaAs photodiode optimized for near-infrared
• Modulation response: DC to 100 kHz (stabilized light sources)
• Measurement units: Watts (W), dBm, dB relative to reference power
• Zero reference function for relative power measurements
• User calibration supported
– Key Features
• Factory calibration across specified wavelength ranges ensures traceability
• Wide dynamic range accommodates weak and moderate optical signals
• Modular design integrates directly into HP/Agilent mainframe systems
• Accepts multiple fiber connector types via standard adapters
• Powered by host instrument via proprietary interface bus
– Typical Applications
• Optical component characterization and testing
• Optical system performance verification
• Power loss measurements in fiber optic networks
• Wavelength-dependent power assessment across the near-infrared band
– Compatibility & Integration
The 81632A module plugs into compatible HP/Agilent optical test platforms including the 8163A, 8164A, 8166A, and 81680A series lightwave measurement systems. It operates on both single-mode and multi-mode fibers depending on the fiber adapter configuration.
