Fabrication of a Graded-index Polymer Optical Fiber Preform by Using a Centrifugal Force

Sang Hyuk Im, Duck Jong Sub, O. Ok Park, Hansol Cho, Jin Sung Choi, Jae Keun Keun Park, Jin Taek Hwang

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We have investigated a fabricating method for a graded index polymer optical fiber preform using a centrifugal force. When two monomers with different densities and refractive indices are polymerized under a centrifugal force, a concentration gradient is generated due to their density difference. Therefore, a graded refractive index can be obtained according to the concentration gradient. When a monomer is polymerized under a centrifugal force, a preform with a hollow is obtained because of volume shrinkage. To compensate for this practically, additional monomer should be filled into the hollow. Monomer should be fed to obtain a continuous gradient of refractive index at the interface before the first polymerized product is perfectly glassified. Two different types of feeding additional monomer were experimented with: monomer-monomer pair (case I) and monomer-polymer pair (case II). The graded index profile with a proper Δn (about 0.01) was successfully obtained in either case.

Original languageEnglish
Pages (from-to)505-509
Number of pages5
JournalKorean Journal of Chemical Engineering
Issue number3
Publication statusPublished - 2002 May
Externally publishedYes

Bibliographical note

Funding Information:
The authors are grateful to the Center for A&~anced Functioilal Polymers, mad this work is also partially supported by the Brain Korea 21 Project

Copyright 2018 Elsevier B.V., All rights reserved.


  • Centrifugal Force
  • Graded Index
  • Polymer Optical Fiber Preform
  • Volume Shrinkage

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering


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