How to strip a vibrating optical cable

Vibrating optical cables can be safely stripped using precision mechanical, thermal, chemical, or laser-based methods while ensuring the fiber remains undamaged.

Mechanical Stripping

Mechanical fiber strippers are precision tools designed to remove coatings without nicking the glass core. For vibrating cables, it is crucial to secure the fiber using a gripper or clamp to prevent movement during stripping. Tools like the Clauss CFS-1, Fitel S-210, or adjustable strippers can handle standard 125 µm cladding fibers and larger diameters, allowing controlled removal of coatings over 30–50 mm lengths.

Using a textured rubber gripper, as in Thorlabs' BFG1, helps hold the fiber securely without introducing microfractures.

Thermal Stripping

Thermal strippers use controlled heat to soften or remove the coating. Devices such as the Vytran FFS-2000 or FiberStrip 7030 can safely strip fibers with standard or high-temperature coatings. For vibrating cables, stabilizing the fiber in a holder is essential to prevent uneven heating or accidental bending.

Chemical Stripping

Chemical methods involve solvents or acids (e.g., 120°C sulfuric acid) to dissolve the coating. When working with vibrating fibers, pre-securing the fiber tip with glue or collapsing the fiber ends prevents movement and ensures uniform coating removal. This method is suitable for specialty fibers or high-power applications where mechanical stripping may risk damage.

Laser-

Based Stripping

Laser stripping is particularly effective for tight-buffered or multi-layer cables. A focused infrared laser beam can create grooves in the protective cover without contacting the fiber, allowing the outer jacket to be split and removed safely. This method is ideal for vibrating or delicate fibers, as it avoids mechanical stress and reduces the risk of micro-cracks.

Dual-beam setups can strip multiple grooves simultaneously for complex cable structures.

Best Practices

Progressive Layer Stripping: For multi-layer cables, strip the outer jacket, aramid yarn, and buffers sequentially to avoid damaging underlying layers. Secure the Fiber: Use grippers or clamps to minimize vibration during stripping. Inspect the Fiber: After stripping, check for scratches or nicks using a fiber microscope.

Clean the Fiber: Remove residues with lint-free wipes and high-purity alcohol before cleaving or connectorization. By combining proper tools, stabilization techniques, and careful handling, vibrating optical cables can be stripped efficiently without compromising fiber integrity.