The HP/Agilent 81520A is a silicon optical head for optical power measurement across the visible and near-infrared spectrum. Built with a 5 mm diameter silicon detector element, it integrates with HP/Agilent mainframes and power meter systems via standard fiber optic connectors. The sensor delivers accurate power measurements across a wide dynamic range, with excellent linearity in the mid-power region.
Technical Specifications
• Detector type: Silicon (Si)
• Detector diameter: 5 mm
• Wavelength range: 450 nm to 1020 nm
• Power measurement range: +10 dBm to −100 dBm
• Linearity: −80 dBm to +3 dBm
• Wavelength accuracy: ±2.2% (600 nm to 1020 nm)
• Operating temperature: 0°C to +55°C
– Key Features
• Supports standard single-mode and multimode fiber (max. 100 µm core, NA < 0.3)
• Multiple connector interface options: FC/PC (81000FA), SC/PC (81000KA), E-2000 (81000PA), ST/PC (81000VA), LC/PC (81003LA)
• Compatible with 81533A and 81533B interface modules for seamless system integration
– Typical Applications
Optical power measurement in telecommunications, research, and manufacturing environments where visible and near-infrared wavelengths require precise characterization over extended dynamic ranges.
– Compatibility & Integration
The 81520A connects to HP/Agilent 8153A, 8163, and 8166 series mainframes through 81533A or 81533B interface modules. Direct compatibility with the 8152A Optical Average Power meter is also supported. Fiber connector adapters enable integration across diverse test setups without additional conversion hardware.
