The HP/Agilent 81532A is a high-sensitivity plug-in power sensor module for optical power measurements within lightwave multimeter mainframes. Built around an InGaAs sensor element, it delivers accurate readings across the 800–1700 nm wavelength range with measurement capability from +3 dBm to −110 dBm. The module installs directly into HP/Agilent 8153A, 8163A, and 8164A series mainframes and provides precision optical power acquisition with analog output capability and selectable digital modulation modes.
Technical Specifications
• Wavelength Range: 800 nm to 1700 nm
• Optical Power Range: +3 dBm to −110 dBm
• Measurement Accuracy (1000–1650 nm): ±2.5% at reference conditions
• Linearity: ±0.015 dB ±0.3 pW
• Noise (peak to peak, 1 second averaging): 0.01 pW to 10 pW depending on power range
• Analog Output Bandwidth: DC to 300–1000 Hz (range and optical head dependent)
• Output Voltage: 0–2 V into open circuit
• Output Impedance: 600 Ω typical
• Maximum Input Voltage: ±10 V
• Digital Modulation Modes: 270 Hz, 1 kHz selectable
• Warm-up Time: 20 minutes
• Sensor Element: InGaAs
– Key Features
• Extended wavelength coverage from 800 nm into the 1700 nm region
• Wide dynamic range spanning 113 dB of optical power
• Sub-picowatt noise floor for low-level power detection
• Selectable modulation modes for compatibility with various measurement protocols
• Compact form factor: 12.75 × 2.75 × 1.25 inches, 2 lbs
– Compatibility & Integration
The 81532A operates in HP/Agilent 8163A and 8164A series mainframes. It does not function in the 8166 mainframe. Optical connector interfaces are provided through separately purchased Agilent optical interface connectors (81000xI Series). Operating and Programming Manuals are available for system integration and command programming.
