How to cut the connector in a three-core optical cable

Cutting and preparing a three-core optical cable connector requires careful stripping, cutting, and cleaving of each fiber using specialized tools to ensure low-loss connections.

Step-by-Step Guide

1. Safety First Always wear safety glasses and work in a clean, well-lit area. Fiber scraps are sharp and can cause injury if handled improperly . 2. Strip the Outer Jacket Use a fiber optic jacket stripper or a properly set wire stripper to remove the outer cable jacket without damaging the fibers inside. For three-core cables, carefully expose each fiber while keeping the others intact . 3. Remove Strength Members Cut the aramid fibers (Kevlar) using ultra-sharp scissors dedicated to fiber work. Do not use these scissors for other materials, as this will dull the blades . 4. Strip the Fiber Coating Use a fiber optic stripping tool (such as Miller, No-Nik, or Microstrip) to remove the protective coating from each fiber. This exposes the bare glass for connectorization. Each tool has its advantages: Miller strippers are rugged but require technique, while No-Nik and Microstrip are preferred for longer fiber lengths and easier handling . 5. Cleave the Fiber After stripping, cleave each fiber to a precise length using a fiber cleaver. A clean, perpendicular cleave is critical for low-loss connections . 6. Prepare the Connector Depending on the connector type (adhesive/polish, pre-polished/splice, or Hot Melt), insert the fiber into the connector ferrule. Adhesive connectors may require epoxy or anaerobic adhesives, while pre-polished connectors use a short fiber stub for mechanical or fusion splicing . 7. Polish the Connector (if required) For adhesive/polish connectors, polish the fiber end to remove excess adhesive and achieve a smooth surface. Factory or field polishing machines provide consistent results, but hand polishing is possible with practice . 8. Test the Connection After termination, test each fiber for continuity and signal loss using an optical power meter or OTDR to ensure proper alignment and minimal loss .

Tips for Multi-Core Cables

• Handle each fiber individually to avoid cross-contamination or breakage.
• Label fibers to maintain correct core mapping.
• Keep fiber ends clean; use lint-free wipes and isopropyl alcohol to remove debris . By following these steps carefully, you can safely cut and prepare a three-core optical cable connector for reliable, low-loss optical connections.