Research On Removing Optical Fiber Coatings With Laser

As a powerful, orientable, clean and efficient light source, laser has leaded a vitally important innovation in various fields since emergence. At the same time, optical fibers for sensor and telecommunications technology, a novel interdiscipline has also played an important role in iatrology, biotechnology, food industry and environmental surveillance. This paper presents a research on removing optical fiber coatings with laser, which is developing with aforementioned two different technologies. It presents a model of heat transfer accord with experimental data and methods stripping optical fiber coatings taking advantage of high removal capability, environment friendly, flexible and non-contact process of laser. The key points of this paper include:1,The properties and ingredient of optical fiber coatings were analyzed and studied, the molecular structure and absorption spectra maximum with different wavelengths of acrylic jacket material were acquired.2,Characterization of the ablation properties of the acrylic jacket material using different removal methods has been analyzed. Comparing with conventional techniques, the advantages and drawbacks of laser-based process were discussed. Results show that laser stripping optical fiber coatings can meet the needs of future applications.3,Models of the heat transfer within an optical fiber cladding, which incorporates the analysis and computation dependence of the various fiber parameters, and on acrylic jacket material plate were created. According to the theoretical model, the "non-damage" power density of optical fiber cladding and acrylic jacket material plate was calculated and was ready to guide the experiment in the next step.4,The optical fiber coatings and acrylic jacket material plate were radiated using infra-red CO₂ laser and ultraviolet KrF laser. The results present the best laser parameters on the basis of experimental data (removal effect and mechanical property) and relations between them. Correspondingly, the experimental data can also verify the correctness of theoretical model.