The typical stripping length for fiber optic splicing is 3–5 cm of bare fiber, with the outer jacket stripped longer as needed to accommodate the protective sleeve.

Stripping the Fiber for Splicing

When preparing a fiber optic cable for fusion splicing, the coating and cladding must be stripped down to the bare glass to ensure a low-loss, strong splice. The recommended length of bare fiber to expose is generally 3–5 cm, which allows enough fiber for proper alignment in the fusion splicer while ensuring the protective sleeve can fully cover the exposed section after splicing (Holight Optic) .

Handling the Outer Jacket and Aramid Yarn

The outer jacket and aramid yarn must be stripped carefully to avoid damaging the underlying fibers. Typically, the outer jacket is removed longer than the bare fiber to provide room for the fiber protection sleeve, often around 12 cm for single-fiber applications (NYC Mesh Wiki) . The aramid yarn should be cut cleanly, as frayed or damaged yarn can reduce tensile strength and compromise the splice (FO Center) .

Best Practices

• Strip progressively: Remove the jacket, then the aramid yarn, and finally the buffer coating to avoid damaging the fiber (FO Center) .
• Use proper tools: Fiber strippers should be perpendicular to the fiber and applied gently to prevent scratches or breaks (Holight Optic) .
• Clean the fiber: After stripping, wipe the bare fiber with a lint-free cloth and alcohol to remove debris before cleaving and splicing (Holight Optic) .
• Protect the fiber: Insert the protective sleeve before stripping the fiber end face to prevent contamination (Holight Optic) . By following these guidelines, technicians can ensure a reliable, low-loss splice while maintaining the mechanical integrity of the fiber optic cable.