The Agilent/Keysight 81661A is an optical power head designed for precision measurement of optical signal power in telecommunications and photonics applications. This sensor integrates with compatible mainframe systems to deliver reliable, repeatable power measurements across defined wavelength bands. It serves optical network testing, research and development, and manufacturing environments where accurate optical power characterization is essential.
– Technical Specifications
Measurement Performance
• Optical power measurement across telecommunications and general optical testing wavelengths
• High measurement accuracy with uncertainty dependent on wavelength, power level, and ambient conditions
• Fine resolution enabling detection of small power variations
• Rapid measurement speed supporting efficient production testing cycles
• High long-term and short-term stability for consistent results over time
• Excellent measurement repeatability yielding highly similar sequential measurements
Optical Interface
• Standard optical connectors compatible with common fiber optic patch cords (FC/PC, SC)
• Compatibility with single-mode (SMF) and multi-mode (MMF) fibers
Electrical Requirements
• Powered from compatible mainframe or power meter host instrument
– Key Features
• Direct integration with Agilent/Keysight mainframe test systems
• Stable performance under varying environmental conditions
• Optimized for spectral bands relevant to optical communications
• Standard fiber optic connector compatibility
– Typical Applications
• Optical network testing and validation
• Research and development in photonics
• Manufacturing quality assurance and characterization
• Optical signal power verification in telecommunications systems
– Compatibility & Integration
The 81661A connects directly to Agilent/Keysight mainframe instruments, requiring no independent power supply. Optical connection is achieved through standard patch cords with FC/PC or SC connectors. Performance characteristics remain consistent across both single-mode and multi-mode fiber applications.
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