Guiding Properties of a Tapered Photonic Crystal Fiber Compared with Those of a Tapered Single-Mode Fiber |
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| Authors: | Youngchun Youk Dug Young Kim Kun Wook Park |
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| Institution: |
a Department of Information and Communications, Kwangju Institute of Science and Technology, Gwangju, Republic of Korea.
b Storage Media Group, LG Electronics Institute of Technology, Seoul, Republic of Korea. |
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| Abstract: | We have fabricated tapered photonic crystal fibers using a fusion splicer and experimentally observed the near-field mode distribution and the beam divergence of it. We have also compared characteristics of the tapered photonic crystal fiber with those of a tapered standard single-mode fiber. Unlike a tapered standard single-mode fiber, the mode field profile of a tapered photonic crystal fiber shows a good confinement of its field within the core region. The numerical apertures of tapered photonic crystal fibers are increased as the diameter of the fiber is decreased. |
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| Keywords: | tapered fiber photonic crystal fiber near field mode distribution beam divergence guiding properties |
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