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Theoretical and experimental investigation of optical fiber coatings removal by laser irradiation

A theoretical and experimental synergic analysis of the removal of optical fiber coating has been presented. The theory of thermodynamical interfacial energy of the droplet has been introduced to analyze the process of coating removal. The theoretical results show that the liquid phase coating will splash around and will be removed because of the interaction of the vaporizing pressure and the cohesive force together. Successful experiments of coating removal have been achieved using both pulsed excimer and CO2 lasers. The experimental results are in agreement with theoretical results.