The HP/Agilent 81630B is a high-power optical sensor module engineered for precise optical power measurements across the near-infrared spectrum. Built on an InGaAs sensor element, it delivers accurate characterization of high-power optical sources and components with measurement capability extending to +28 dBm. The module integrates directly into Agilent/Keysight Lightwave mainframes via standard slot configuration.
## Technical Specifications
• Sensor Element: InGaAs
• Wavelength Range: 970 nm to 1650 nm
• Power Range: +28 dBm to −70 dBm
• Linearity (Power): < ±0.05 dB (970 nm – 1630 nm)
• Relative Uncertainty (polarization): < ±0.01 dB
• Relative Uncertainty (spectral ripple): 55 dB
• Averaging Time (minimum): 100 µs
• Applicable Fiber Types: Standard single-mode and multi-mode fibers up to 100 µm core size, NA ≤ 0.3
• Operating Temperature: 0°C to +35°C
• Storage/Shipment Temperature: −40°C to +70°C
• Humidity: Non-condensing
• Dimensions: 75 mm × 32 mm × 335 mm
• Weight: 0.6 kg
## Key Features
• High-power measurement capability up to +28 dBm eliminates range limitations in high-power applications
• Low polarization dependence and minimal spectral ripple ensure measurement accuracy in demanding test scenarios
• Analog output via BNC connector enables integration with external monitoring and control systems
• NIST and PTB measurement traceability provides standards compliance and result confidence
• Compact module form factor fits directly into existing Lightwave measurement systems
## Typical Applications
High-power optical component characterization, fiber amplifier testing, laser source verification, and system-level power budgeting where precision and high dynamic range are required.
## Compatibility & Integration
The 81630B is designed for direct installation in Agilent/Keysight Lightwave mainframes: 8163A/B Multimeter, 8164A/B Measurement System, and 8166A/B Multichannel System. Optical input requires a compatible connector interface or bare fiber adapter matching the fiber type. Analog output integrates via standard BNC connector.

















