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http://dx.doi.org/10.3807/KJOP.2014.25.4.200

Fabrication of a Multidirectional Side-firing Optical Fiber Tip and Its Numerical Analysis  

Jung, Deok (Advanced Photonics Research Institute, Gwangju Institute of Science and Technology)
Sohn, Ik-Bu (Advanced Photonics Research Institute, Gwangju Institute of Science and Technology)
Noh, Young-Chul (Advanced Photonics Research Institute, Gwangju Institute of Science and Technology)
Kim, Jin-Hyeok (Interdisciplinary Program for Photonic Engineering, Chonnam National University)
Kim, Changhwan (School of Mechanical Engineering, Kyungpook National University)
Lee, Ho (School of Mechanical Engineering, Kyungpook National University)
Publication Information
Korean Journal of Optics and Photonics / v.25, no.4, 2014 , pp. 200-206 More about this Journal
Abstract
In this paper, using the value theoretically calculated to emit multidirectionally a beam coming into an optical fiber with diameter of $125{\mu}m$, we modeled and produced a cone-shaped structure at the distal end of the fiber. A numerical simulation was performed for an optical fiber tip in which all incident beams were totally reflected and emitted toward the side, as well as for an optical fiber tip from which the beams could be emitted forward and sideways simultaneously. We produced multidirectional-firing optical fiber tips based on the simulation result and model. Laser fabrication of the optical fiber was done by processing a cone-shaped structure at the distal end of an optical fiber with diameter of $125{\mu}m$ using a femtosecond pulsed laser and polishing the processed surface with a $CO_2$ laser. We also conducted an analysis to compare experimental and simulation results.
Keywords
Optical fiber tip; Laser material processing; Multidirectional side-firing; Femtosecond laser; $CO_2$ laser;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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