HP / Agilent 81633B Optical Power Sensor Module

The HP/Agilent 81633B Optical Power Sensor Module is an InGaAs photodetector module for precision optical power measurement across the 800 nm to 1700 nm wavelength band. Operating from +10 dBm to -90 dBm, it delivers ±2.5% accuracy and excellent linearity for continuous-wave signal characterization in fiber optic networks and optical test environments. The module integrates directly into HP/Agilent 8163B, 8164B, and 8166B multichannel mainframes via standard plug-in installation, accepting popular fiber connector types through front-panel 81000xI optical interfaces.

– Technical Specifications

• Sensor Type: InGaAs
• Wavelength Range: 800 nm to 1700 nm
• Power Measurement Range: +10 dBm to -90 dBm
• Accuracy (1000 nm to 1630 nm): ±2.5%
• Linearity (CW, 1000 nm to 1630 nm): +10 dBm to -70 dBm
• Linearity (CW, +10 dBm to -60 dBm): <±0.015 dB ± 2 pW
• Relative Uncertainty due to Polarization (typical): ±0.005 dB
• Uncertainty at Reference Conditions (1000 nm to 1630 nm): <±2.5%
• Maximum Input Power: +10 dBm
• Minimum Input Power: -90 dBm

– Key Features

• Wide wavelength coverage spanning near-infrared to mid-infrared regions
• Extended dynamic range supports both high-power and low-power measurement scenarios
• Low polarization-dependent loss ensures accurate characterization across signal states
• CW measurement optimization for continuous-wave optical signals

– Typical Applications

• Optical link characterization and performance validation
• Signal analysis in fiber optic communications systems
• Network power monitoring and diagnostics
• Optical component and subsystem testing

– Compatibility & Integration

• Plug-in module for HP/Agilent 8163B, 8164B, and 8166B mainframe series
• Front-panel optical input with 81000xI connector interfaces
• Module weight: 0.6 kg (1.31 lbs)
• Designed for seamless installation within compatible multichannel test platforms