Introduction to fiber optic cable strippers

Fiber optic cable strippers are precision tools designed to remove protective coatings from optical fibers without damaging the delicate glass core, enabling proper splicing and connectorization.

What Fiber Optic Cable Strippers Are

A fiber optic cable stripper is a specialized hand tool used to remove the protective polymer coatings from optical fibers, exposing the bare glass core and cladding for splicing or connector termination . Fiber optic cables typically consist of multiple layers: the core, cladding, buffer coating, strength members (like aramid yarn), and the outer jacket. Strippers are engineered to remove specific layers, usually from a 250 µm or 900 µm diameter down to the 125 µm glass cladding, without causing nicks, scratches, or stress fractures that could degrade signal quality .

Types of Fiber Strippers

1. Mechanical Strippers: These are the most common and feature precision-ground or laser-drilled notches to strip coatings of specific diameters. They may have multiple holes for different layers, such as the outer jacket, tight buffer, and acrylate coating . Examples include FOS03 and CFS-2 strippers, which can handle 125 µm fibers and 250 µm cladding .
2. Buffer Tube Strippers: Designed for loose-tube cables, these strippers remove the outer jacket and buffer tube without damaging the fibers inside. They are essential for outdoor or gel-filled cables .
3. Cable Slitters: These tools make longitudinal cuts along the cable jacket, allowing mid-span access to fibers without fully cutting the cable. Adjustable blades prevent damage to inner layers .
4. Micro Strippers: Used for high-precision stripping of individual fibers, often in laboratory or delicate applications. They have very small, sharp blades for precise removal of buffer coatings .
5. Specialized Strippers: Some strippers use thermal, chemical, or plasma methods for coatings that are difficult to remove mechanically. These are tailored to specific fiber types and coatings .

How to Use Fiber Strippers

The basic steps for using a fiber optic cable stripper are:

1. Strip the outer sheath of the fiber using the appropriate notch or hole.
2. Remove the stripped coating carefully to expose the glass fiber.
3. Trim any aramid fibers or strength members with cable-cutting scissors if necessary . Proper use ensures signal integrity, reduces attenuation, and prevents back reflections that can compromise network performance .

Key Considerations

• Precision: Strippers must match the fiber diameter and coating type to avoid damage.
• Layer-specific stripping: Multi-hole strippers allow selective removal of outer jackets, tight buffers, and acrylate coatings.
• Durability: High-quality materials and spring-loaded designs reduce hand fatigue and improve reliability .
• Application: Choose strippers based on cable type (loose-tube, tight-buffered, or specialty fibers) and the required strip length, typically 30–50 mm . Fiber optic cable strippers are essential tools for technicians, ensuring clean, precise fiber preparation for splicing, connectorization, and overall network reliability.