Stripping and Fixing of Optical Fiber Cables

Optical fiber cables can be stripped using mechanical, thermal, or specialized hand tools, with careful attention to avoid damaging the glass core.

Mechanical Stripping

Mechanical strippers are the most common tools for removing fiber coatings. They feature precision-ground or laser-drilled holes sized for specific fiber diameters, allowing the technician to remove the outer jacket, buffer coating, and acrylate layer without touching the glass core. Standard hand strippers often have multiple notches to handle different coating thicknesses, such as 250µm or 900µm, and are suitable for fusion splicing or connector termination.

The process typically involves: Stripping the outer jacket firstRemoving aramid yarn or strength membersStripping the buffer coating to expose the bare fiberThermal StrippingThermal strippers use heat to soften the polymer coating, making it easier to remove without applying excessive mechanical force. This method is particularly useful for delicate fibers or laboratory applications where precision is critical. Heated tools reduce the risk of nicks or scratches that can compromise signal integrity.

Specialized Tools

Flat Drop Wire Strippers: Designed for FTTx installations, these remove the outer jacket of flat drop cables without damaging internal fibers. Adjustable Strippers: Allow manual adjustment of blade diameter for non-standard or legacy fiber types.

Three-

Hole or Multi-Notch Strippers: Enable stripping of multiple layers with a single tool, improving efficiency and consistency. Cable Cutting Scissors: Used to trim aramid fibers or cut the outer sheath cleanly after stripping.

Best Practices

Strip each layer progressively, not all at once, to avoid damaging underlying layers. Ensure the blade does not contact the glass fiber, as even a small nick can lead to cracks or signal loss over time. Use professional-grade tools designed for the specific fiber type and coating thickness.

Inspect the stripped fiber to confirm a clean, straight cut without jagged edges or residual coating. By combining the right tools with careful technique, technicians can safely prepare optical fibers for splicing, connectorization, or other applications while maintaining signal integrity and long-term reliability.