The Agilent/Keysight 81000FA is an FC connector adapter engineered for fiber optic systems utilizing Agilent and Keysight 815xxx and 816xxx series optical heads. This threaded adapter accepts fiber pigtails terminated with FC/PC or FC/APC connectors, enabling direct integration of standard fiber-optic connectivity into optical measurement instruments designed for 5mm optical heads. The 81000FA is part of the 81000 series family of connector adapters, which provides standardized interfaces across multiple connector geometries for optical measurement applications.
– Technical Specifications
• Manufacturer: Agilent / Keysight / HP
• Model Number: 81000FA
• Connector Interface: FC/PC, FC/APC
• Optical Head Compatibility: 815xxx and 816xxx series; 5mm heads
• Form Factor: Threaded adapter
• Fiber Cladding Diameter: 125 micrometers (when used with 81000BA bare fiber adapter)
– Key Features
• Accepts FC/PC and FC/APC terminated fiber pigtails
• Direct mechanical interface to 5mm optical head designs
• Enables bare fiber configurations via optional 81000BA adapter
• Integrates with integrating sphere assemblies using compatible heat sink components
– Typical Applications
• Fiber-optic power and energy measurement
• Optical signal characterization on 815xxx and 816xxx measurement platforms
• Laboratory and field optical testing requiring FC connector termination
– Compatibility & Integration
The 81000FA is one of seven connector variants in the 81000 series. Alternative adapter options include the 81000PA (E-2000), 81000KA (SC/PC/APC), 81000VA (ST), 81003LA (LC), 81000AA (Diamond HMS-10), and 81000SA (DIN 47256/4108). Optional accessories include the 81000AF 1-inch filter holder and 81000DF depolarizing filter for extended measurement capabilities.
























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