Bandwidth optimization of PVDF clad GI-POF

Yuta Aruga, Kunihiro Ohdoko, Takaaki Ishigure, Yasuhiro Koike

Research output: Contribution to conferencePaperpeer-review


The PVDF clad GI-POF has a flat refractive index region in the core that can cause large modal dispersion. On the other hand, for practical use in high speed optical link, it is assumed to use Under-filled launch (UFL) that launches only small mode groups in the GI core region by adapting an LD as a light source. We investigated the way to reduce the mode coupling (the energy transfer among the propagating modes) and to achieve the high bandwidth property in a PVDF clad GI-POF. It was found that the mode coupling strength could be reduced by increasing the numerical aperture (NA) of the GI region in the PVDF clad GI-POF, and the PVDF clad GI-POF with high bandwidth under UFL condition could be fabricated for the first time by decreasing the mode coupling.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27


Other54th SPSJ Annual Meeting 2005


  • Flat core region
  • GI core region
  • GI-POF
  • Mode coupling
  • Numerical aperture
  • Propagating mode
  • PVDF
  • UFL

ASJC Scopus subject areas

  • Engineering(all)


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