Typically, 30–40 mm of fiber coating is stripped for splicing, with a maximum of about 50 mm to avoid damage.

Recommended Strip Length

For most standard telecommunication fibers, the coating is stripped over a length of 30–40 mm to expose the bare glass for splicing . This applies to both fusion and mechanical splicing, though the exact length may vary depending on the splicer or connector manufacturer's specifications . Stripping more than 50 mm at a time is generally discouraged, as it increases the risk of fiber damage or breakage .

Preparation Steps

1. Remove Outer Jacket and Buffer Coatings: Begin by carefully stripping the outer protective layers to expose the individual fibers . Use a high-quality fiber stripper to avoid nicks or scratches on the glass core .
2. Clean the Bare Fiber: After stripping, clean the exposed fiber with 99% isopropyl alcohol and lint-free wipes to remove any residue or contaminants .
3. Cleave the Fiber: Use a precision cleaver to create a flat, perpendicular end face. A poor cleave can lead to misalignment, higher splice loss, and increased reflection .
4. Splice the Fiber: Place the prepared fibers into a fusion splicer or mechanical splice assembly. Fusion splicing produces a permanent, low-loss joint, while mechanical splicing allows for temporary or quick connections .
5. Protect the Splice: After splicing, apply a splice protector or recoater to safeguard the joint from mechanical stress and environmental factors .

Key Considerations

• Tool Quality: Use precision strippers and cleavers designed for the fiber type and coating thickness to ensure clean, damage-free preparation .
• Fiber Type: Standard fibers typically have a 125 µm glass core with a 250 µm coating, but specialty fibers may require adjustments in strip length and tool settings .
• Splice Type: Fusion splicing generally requires slightly longer stripped lengths to accommodate the splice protector, while mechanical splicing may need only the minimum required for alignment . By following these guidelines, technicians can achieve strong, low-loss splices that maintain signal integrity and network reliability.