Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Dependence of the Transmission Characteristics of Photonic Crystal Fiber on the Macrobending Radius and the Mechanically Induced Microbending

  • Lee, Byeong-Ha (Department of Information and Communications Kwangju Institute of Science and Technology) ;
  • Moon, Dae-Seung (Department of Information and Communications Kwangju Institute of Science and Technology) ;
  • Eom, Joo-Beom (Department of Information and Communications Kwangju Institute of Science and Technology) ;
  • Kim, Jin-Chae (Department of Information and Communications Kwangju Institute of Science and Technology) ;
  • Kim, Hok-Young (Department of Information and Communications Kwangju Institute of Science and Technology) ;
  • Paek, Un-Chul (Department of Information and Communications Kwangju Institute of Science and Technology)
  • Received : 2003.03.27
  • Published : 2003.06.01
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Abstract

It is reported that the spectral loss of photonic crystal fiber (PCF) having a large hole-to-hole distance (~ 10 ${\mu}{\textrm}{m}$) is sensitive to micro- and macrobending when compared with the conventional single-mode fiber. In this paper, we will present the measurement result of the macro- and microbending characteristics of fabricated PCF with large hole-to-hole distance (> 10 ${\mu}{\textrm}{m}$) . For the macrobending experiment, the fiber was simply wound around a circular structure with variable diameter that could be reduced to a few centimeters. For the microbending case, regularly spaced silica rods were attached on a slide glass and pressed against the fiber by loading a stack of metal plates of known weight on the glass. The transmission loss spectrum shows a rather flat response to the to microbending, and this makes the PCF a good candidate for a wideband variable optical attenuator.

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References

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