How to strip high-temperature optical cables

High-temperature optical cables can be safely stripped using mechanical, thermal, or chemical methods, with careful attention to fiber integrity and coating type.Mechanical StrippingMechanical strippers are precision tools designed to remove the protective coating without nicking the glass fiber. For high-temperature fibers, which often have single-layer acrylate or specialized high-temperature coatings, adjustable strippers like the Clauss CFS-1 or Fitel S-210 are recommended for standard 125 µm cladding fibers, while larger diameters may require a Clauss No Nik stripper or adjustable models . Key steps include:Cut the fiber to the desired length (typically 30–50 mm at a time).Use the stripper to remove the coating evenly, avoiding excessive force that could introduce micro-cracks.Inspect the stripped fiber under a microscope to ensure no coating remnants or scratches remain .Thermal StrippingThermal strippers soften the coating with heat before removal, which is particularly effective for high-temperature fibers that may be brittle or have tough coatings. Devices like the Vytran FFS-2000, FiberStrip 7030, or WRXTS6 Thermal Stripper provide controlled heating and ergonomic handling . Guidelines include:Set the temperature according to the fiber manufacturer's specifications.Hold the fiber in a stable position using fiber holders to prevent bending or stress.Remove the softened coating gently to avoid damaging the glass.Chemical StrippingChemical methods involve dissolving the coating using solvents or acids, such as sulfuric acid at 120°C for one minute . This method is suitable for fibers with coatings resistant to mechanical or thermal stripping. Safety precautions are critical:Seal the fiber tip with glue or collapse the fiber end to prevent damage.Use appropriate personal protective equipment (PPE) and work in a fume hood.Rinse and clean the fiber thoroughly after stripping to remove all residues.Cleaning and Quality ControlAfter stripping, the bare fiber must be cleaned using lint-free wipes with high-purity alcohol or dedicated fiber cleaning agents . Inspect the fiber for:Residual coatingMicroscopic scratches or nicksConsistent strip length Proper cleaning and inspection preserve the fiber's tensile strength and ensure reliable splicing or connectorization.Safety ConsiderationsAlways work in a clean, well-lit area.Replace worn or damaged stripping tools to maintain precision.Avoid stripping more than 50 mm at a time to reduce the risk of fiber damage .Follow manufacturer guidelines for temperature, chemical exposure, and tool use. By selecting the appropriate method—mechanical, thermal, or chemical—and following careful handling and inspection procedures, high-temperature optical cables can be stripped safely and efficiently without compromising fiber performance .