The Agilent 81633A is a single-channel InGaAs optical power sensor module designed for integration into Agilent’s 8163A and 8164A lightwave test platforms. It delivers precise power measurements across the 800 nm to 1700 nm wavelength range, supporting calibration of optical sources, system loss verification, and power level maintenance in fiber optic test setups. The sensor combines wide dynamic range with excellent linearity, making it suitable for demanding measurement applications in telecommunications and component characterization.
Technical Specifications
• Sensor Type: InGaAs
• Wavelength Range: 800 nm to 1700 nm
• Power Range: +10 dBm to −90 dBm
• Measurement Accuracy: ±2.5% (1000 nm to 1630 nm)
• Linearity (CW): ±0.015 dB ±2 pW (+10 dBm to −70 dBm)
• Maximum Input Power: 0.01 W
• Channels: 1
– Key Features
• Single-channel modular form factor with proprietary Agilent interface
• High sensitivity down to −90 dBm with 20 dB dynamic range
• Low-noise measurement capability across extended wavelength band
• Connector adapter interface (sold separately) for optical input
• GPIB, RS232C, and parallel printer interface support for remote operation
• Storage temperature rating: −40°C to +70°C
– Compatibility & Integration
The 81633A mounts directly into the 8163A Lightwave Multimeter, 8164A Lightwave Measurement System, or 8166A Lightwave Multichannel System. Full SCPI programming support enables integration into automated test environments. Standard Agilent optical interface and modular bus architecture ensure straightforward installation without external power requirements.
– Maintenance
Specialized cleaning procedures are required for the recessed lens interface. Personnel should avoid alcohol and compressed air; professional cleaning is recommended to prevent optical surface damage.
















