Dopant designing of Thermally Stable Graded Index Plastic Optical Fiber

Y. Yamaki, A. Kondo, Y. Koike

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


The graded index polymer optical fiber (GI POF) has been proposed as a media for very short reach network because of its high flexibility, low laying cost and excellent transmission characteristics. However, the plasticization efficiency which causes by the high refractive dopant decreases the glass transition temperature (Tg) in the center of the core and deteriorates thermal stability of fibers. In this paper, thermally stable PMMA based GI POF was successfully fabricated for the first time by designing dopant molecule which has little plasticizer effect. Tg at the core region was improved to 104 °C while that of conventional GI POF is 86 °C. Stability of attenuation at 85 °C/dry and 75 °C/85 %RH were clarified to be as high as that of non-doped step index POF.

Original languageEnglish
Title of host publicationOrganic Photonic Materials and Devices XI
Publication statusPublished - 2009
EventOrganic Photonic Materials and Devices XI - San Jose, CA, United States
Duration: 2009 Jan 272009 Jan 29

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherOrganic Photonic Materials and Devices XI
Country/TerritoryUnited States
CitySan Jose, CA


  • 9-Bromophenanthrene
  • Co-extrusion process
  • Graded-Index plastic optical fiber
  • High refractive index molecule
  • PMMA
  • Plasticization effect
  • Tg
  • Thermally stable fiber

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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