The HP/Agilent 8152A is an optical average power meter for precision measurement of lightwave signals across extended wavelength ranges. Paired with appropriate optical heads, it delivers traceable calibration accuracy of ±5% and performs absolute measurements, relative comparisons, ratio analysis, and attenuation quantification of optical components and systems. Two independent optical inputs enable simultaneous or sequential measurements. The instrument supports full remote control via HP-IB (IEEE 488) interface alongside manual front-panel operation, making it suitable for research, production testing, and incoming evaluation workflows.
Technical Specifications
Measurement Capability: Optical average power; absolute and relative power measurements; loss and attenuation of passive components; ratio measurements at same or different wavelengths; optical splitter power ratios
Wavelength Range: 450 nm to 1700 nm (optical head dependent)
• HP 81520A: 450 nm to 1020 nm
• HP 81521B: 900 nm to 1700 nm or 850 nm to 1700 nm
• HP 81522A: 1000 nm to 1550 nm
Measurement Range:
• HP 81520A: +10 dBm to −100 dBm
• HP 81521B: +3 dBm to −80 dBm
• HP 81522A: −30 dBm to −100 dBm
Resolution: 0.01 dB; 10 pW (best case)
Accuracy: ±5% traceable calibration (at 1300 nm reference, −20 dBm, logarithmic); ±0.05 dB absolute (1% to 1.5% typical by head model)
Linearity: ±0.05 dB (1% to 1.5% typical); one percent typical across measurement range
Sensor Elements: Cooled Si PIN (81520A), Ge PIN (81521B), InGaAs PIN (81522A); 5 mm diameter
Bandwidth: 355 nm (HP 81520A); 5 nm (HP 81521B, 81522A)
Wavelength Sensitivity: Automatic correction based on entered operating wavelength
Optical Inputs: Two independent channels
– Key Features
• HP-IB remote control and programming for automated test integration
• Manual front-panel operation of all functions
• Head-selectable wavelength coverage from visible to mid-infrared
• Dual optical input architecture for comparative and ratio measurements
– Typical Applications
• Active optical component output power characterization
• Passive component insertion loss and attenuation measurement
• Optical splitter loss and power division ratios
• Wavelength-dependent power analysis
• Production test automation via HP-IB control
– Compatibility & Integration
Required: Interchangeable optical head (81520A, 81521B, or 81522A), appropriate connector adapter, and optical lens. Compatible with HP 81000AS/BS Optical Power Splitter for multi-branch measurements.
