Fiber optic cables are cut using specialized tools to score and cleave the delicate glass fibers, ensuring a clean, precise break for splicing or termination.

Tools Required

Cutting fiber optic cables requires precision tools to avoid damaging the fragile glass strands:

• Fiber Optic Stripper: Removes the outer jacket without harming the inner fibers .
• Fiber Optic Cleaver: Scores and cleaves the fiber for a clean, perpendicular cut .
• Cable Sheath Slitter (optional): For larger cables to score the outer jacket .
• Safety Gear: Gloves and safety glasses to protect against glass shards .
• Cleaning Supplies: Lint-free wipes and isopropyl alcohol to clean the fiber before splicing .

Step-by-Step Process

1. Inspect the Cable: Check for frayed or damaged ends to determine where to cut .
2. Remove the Outer Jacket: Use a fiber optic stripper or sharp blade to carefully remove the plastic coating, exposing the Kevlar fibers and glass strands .
3. Handle Kevlar Fibers: Twist the Kevlar fibers into a rope-like strand and snip them with metal scissors .
4. Score the Glass Fiber: Use a fiber optic cleaver or a sharp knife to make a precise scratch across the glass tubing at the desired cut point .
5. Cleave the Fiber: Hold the fiber at the scored point and gently bend it until it snaps cleanly, producing a flat, perpendicular end .
6. Clean the Fiber: Wipe the cut end with isopropyl alcohol to remove debris and ensure optimal signal transmission .

Safety Considerations

• Always wear safety glasses to protect against microscopic glass shards .
• Use gloves to prevent cuts and contamination .
• Work in a well-ventilated area and dispose of fiber scraps in a designated container .
• Avoid touching the exposed fiber with bare hands to prevent oils from degrading signal quality .

Applications

Fiber optic cables are cut for various purposes:

• Splicing: Joining two cables together .
• Termination: Connecting cables to connectors like LC, SC, or ST .
• Repair: Removing damaged sections .
• Installation and Maintenance: Cutting cables to fit specific routes or during upgrades . By following these steps and using the proper tools, fiber optic cables can be cut cleanly and safely, ensuring reliable performance in telecommunications and data networks .