The Newport FK12 is an electronic angled fiber cleaver engineered to produce high-quality fiber ends with user-selectable cleave angles from 0° to 15°. It employs patented ultrasonic cleaving action with a precision ground diamond blade to achieve mirror-like fiber surfaces while minimizing back reflections to levels below −60 dB. This approach eliminates the complexity and time requirements of traditional angle polishing or index matching methods, delivering simple, fast, and repeatable cleaving performance suitable for sensitive fiber optic systems.
– Technical Specifications
• Cleave Angle: 0° to 15° (adjustable)
• Blade Type: Precision ground diamond blade with resonant acoustic stepped horn
• Cleaving Method: Patented anvil-less ultrasonic cleaving action
• Surface Finish: Mirror-like fiber ends with minimal contamination, hackle, and misting
• Back Reflection Performance: Less than −60 dB
• Cladding Diameter Compatibility: 80–200 µm
• Power Source: 9 V alkaline battery
• Battery Life: Greater than 1,000 cleaves per battery
• Weight: 1.2 kg
– Key Features
• Adjustable cleave angles enable optimization for specific optical system requirements
• Ultrasonic cleaving technology ensures superior surface quality and repeatability
• Back reflection reduction below −60 dB eliminates need for post-cleave polishing or index matching
• Battery-powered portability supports laboratory and field deployment
• Consistent performance across 1,000+ cleaves per battery charge
– Typical Applications
• Single-mode and multimode fiber termination
• Angled fiber connector preparation
• High-sensitivity optical system assembly where back reflections must be minimized
• Field and laboratory fiber cleaving
– Compatibility & Integration
The FK12 accommodates cladding diameters from 80–200 µm, making it suitable for standard telecommunications and specialty fibers within this range.




















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