Fiber Optic Cable Stripping Data

Fiber optic cable stripping involves carefully removing protective coatings to expose the bare fiber for termination, using precise tools and techniques to prevent damage and ensure optimal signal performance.Stripping Process OverviewStripping a fiber optic cable is a critical step in preparing it for termination. The process typically involves:Inspection and preparation: Ensure the work area is clean, well-lit, and free from dust. Examine the cable for kinks, bends, or damage before stripping .Layer-by-layer stripping: Multi-layer cables require progressive stripping of each layer to specific lengths. The primary buffer (usually 250 µm) is removed first, followed by secondary buffers and jackets, without touching the glass fiber itself .Cleaning: After stripping, the exposed fiber is cleaned with alcohol wipes or a suitable cleaning solution to remove debris and residue .Cleaving: A fiber optic cleaver is used to create a clean, perpendicular end face on the stripped fiber, which is essential for low-loss termination .Inspection: Use a fiber inspection microscope or visual fault locator (VFL) to ensure the cleave is smooth and defect-free .Tools for StrippingFiber strippers are precision tools designed to remove coatings without nicking or scratching the glass fiber. They come in various types:Mechanical strippers: Handheld tools with blades sized for specific fiber diameters (commonly 125 µm cladding with 250 µm coating), .Thermal strippers: Use heat to soften the buffer for easier removal, reducing the risk of mechanical damage .Automated systems: Provide consistent, repeatable stripping with minimal operator skill, ideal for high-volume assembly .Specialty strippers: For plastic optical fibers (POF) or tight buffers (e.g., 900 µm), and for “window strip” operations where a short section of coating is removed mid-fiber .Mechanical Data and Strip ForceThe mechanical behavior of fibers during stripping is influenced by coating integrity and aging:Strip force testing: Typically performed on a 30 mm fiber section at 500 mm/min, with data acquisition rates around 200 Hz, to measure the force required to remove the coating .Field-aged fibers: Studies show that fibers aged in the field may experience strength degradation, with up to 40% reduction in some cases, affecting handleability during stripping .Dynamic mechanical analysis (DMA): Characterizes viscoelastic properties of coatings, including storage modulus (elastic energy) and loss modulus (viscous energy), with peaks near the glass transition temperature (Tg) indicating optimal handling conditions .Best PracticesAlways strip fibers progressively and avoid removing multiple layers at once .Ensure blades are sharp and properly adjusted to prevent nicks or scratches .Maintain consistent cleave lengths and inspect each fiber individually .For multi-fiber cables, repeat the process for each fiber to maintain uniformity .Consider the fiber's age and environmental exposure, as coatings may become more brittle over time, requiring careful handling . By following these procedures and using the appropriate tools, fiber optic cable stripping can be performed safely and efficiently, ensuring high-quality terminations and long-term network reliability.