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Laser micromachining of optical endoscopic fiber for viewing  

Yoo, Dongyoon (Advanced Photonics Research Institute, Gwangju Intitute of Science and Technology)
Choi, Hun-Kook (Advanced Photonics Research Institute, Gwangju Intitute of Science and Technology)
Sohn, Ik-Bu (Advanced Photonics Research Institute, Gwangju Intitute of Science and Technology)
Noh, Young-Chul (Advanced Photonics Research Institute, Gwangju Intitute of Science and Technology)
Shin, Jung-Won (GSM Korea)
Publication Information
Laser Solutions / v.18, no.1, 2015 , pp. 18-22 More about this Journal
Abstract
In this paper, controlling shape of optical fiber tip for endoscope was investigated for eliminating blind spot. The blind spot of endoscope is generated by divergence angle of optical fiber, so it is easy to generate blind spot when tightly focusing. In order to eliminate this region, fiber tip is necessary to be controlled as convex or concave. Illumination simulation of convex and concave type of fiber tip in the endoscope was in progress, so the distance of non- blind region was investigated in each case. As well as the simulation, the tip was fabricated as concave shape by UV laser machining. Then the beam radiation was measured to observe the blind region. The result showed that controlling the fiber tip as convex or concave shape makes the narrow blind region of illumination in endoscope.
Keywords
Endoscope illumination; optical fiber; UV laser; laser processing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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