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http://dx.doi.org/10.7736/KSPE.2013.30.10.1017

Laser Microfabrication of Multidirectional Side-fire Optical Fiber Tip  

Jung, Deok (Advanced Photonics Research Institute, GIST)
Sohn, Ik-Bu (Advanced Photonics Research Institute, GIST)
Noh, Young-Chul (Advanced Photonics Research Institute, GIST)
Kim, Jin-Hyeok (Interdisciplinary Program for Photonic Engineering, Chonnam Univ.)
Kim, Changhwan (Mechanical Engineering, Kyungpook National Univ.)
Lee, Ho (Mechanical Engineering, Kyungpook National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.10, 2013 , pp. 1017-1022 More about this Journal
Abstract
Currently, various optical fiber tips are used to deliver laser beam for endoscopic surgery. In this paper, we demonstrated multidirectional (forward and side) firing optical fiber tip using a femtosecond micromachining and $CO_2$ laser polishing technology. We controlled the edge width of optical fiber tip, by modulating the condition of $CO_2$ laser, to regulate the amount of side and forward emission. The distal end of the optical fiber with core/clad diameter of $400/440{\mu}m$ was microstructured with cone shape by using a femtosecond laser. And then the microstructured optical fiber tip was polished by $CO_2$ laser beam result in smoothing and specular reflection at the surface of the cone structure. Finally, we operated the LightTools simulation and good agreement was generally found between the proposed model and experimental simulation.
Keywords
Laser material processing; Femtosecond laser; $CO_2$ laser; Optical fiber tip; Multidirectional side-fire;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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