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Proceedings Paper

Microbending-induced loss of a photonic crystal fiber
Author(s): Jinchae Kim; Dae Seung Moon; Joo Beom Eom; Un-Chul Paek; Byeong Ha Lee
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Paper Abstract

It is reported that the spectral loss of a photonic crystal fiber having a large hole-to-hole distance (~10 micron) is sensitive to micro- and macrobending on the fiber. For the macrobending experiment, the fiber was simply wound round a circular structure of known radius, which was reduced up to a few centimeters. As the bending radius was decreased, the transmission loss was increased. In terms of wavelength, the spectral loss was rather flat, which looked suitable for a wide-band fiber attenuator. For the microbending case, a series of regularly spaced silica rods was attached on a slide glass and pressed against the fiber by loading a series of metal plates of known mass on the glass. With this scheme, it was possible to induce periodic microbending on the photonic crystal fiber. The silica rods had the same diameter of a few hundred microns and spaced by about 500 micron. The bending loss was increased by adding the weight. The photonic crystal fiber having a large hole-to-hole distance was found to be highly sensitive to both microbending and macrobending when compared to the conventional single-mode fiber. In this paper, we will discuss the microbending effect on the photonic crystal fiber with various experimental conditions, such as the periodicity and the length of the microbend-inducing region.

Paper Details

Date Published: 9 July 2003
PDF: 9 pages
Proc. SPIE 5000, Photonic Crystal Materials and Devices, (9 July 2003); doi: 10.1117/12.479812
Show Author Affiliations
Jinchae Kim, Kwangju Institute of Science and Technology (South Korea)
Dae Seung Moon, Kwangju Institute of Science and Technology (South Korea)
Joo Beom Eom, Kwangju Institute of Science and Technology (South Korea)
Un-Chul Paek, Kwangju Institute of Science and Technology (South Korea)
Byeong Ha Lee, Kwangju Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 5000:
Photonic Crystal Materials and Devices
Ali Adibi; Axel Scherer; Shawn Yu Lin, Editor(s)

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