Why do optical fibers and pigtails need to be dissolved

Optical fibers and pigtails need to be stripped of their protective coatings to expose the bare fiber, allowing precise splicing or connectorization for low-loss, reliable optical connections. Purpose of Stripping or "Dissolving" Fiber CoatingsOptical fibers are coated with primary and secondary protective layers to prevent physical damage and maintain flexibility. Before a fiber can be terminated or spliced, these coatings must be removed to expose the bare glass core, which is the actual medium for light transmission.

This step is essential because the coatings are not optically transparent and would prevent proper fusion or mechanical splicing, leading to signal loss or back reflection.

Role in Pigtail Termination

A fiber optic pigtail has a factory-terminated connector on one end and a bare fiber on the other. The bare end must be stripped, cleaned, and cleaved before it can be spliced to the incoming fiber in the field. This ensures a low-loss permanent joint between the pigtail and the main fiber cable.

Without stripping, the fiber cannot be properly fused or mechanically joined, which would compromise network performance.

Methods and Best Practices

Stripping Tools: Specialized fiber strippers (e.g., Miller, No-Nik, Microstrip) are used to remove the coatings without damaging the glass core. Cleaning: After stripping, the bare fiber is cleaned with alcohol wipes to remove any residue. Cleaving: The fiber end is cleaved to create a smooth, perpendicular surface for splicing or connectorization.

Splicing or Connectorization: Once stripped and cleaved, the fiber can be fusion spliced or joined to a connector, ensuring minimal insertion loss and high return loss. Summary"Dissolving" or stripping optical fibers and pigtails is a critical step to expose the glass core, enabling precise splicing or connectorization. This process ensures optimal signal transmission, low loss, and reliable network performance, which cannot be achieved if the protective coatings remain intact.