Improved coating method for uniform polymer layer in infrared hollow fiber

Katsumasa Iwai, Yi Wei Shi, Mitsunobu Miyagi, Yuji Matsuura

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


An improved coating method was proposed in order to form a uniform polymer layer in the fabrication of cyclic olefin polymer-coated silver (COP/Ag) hollow fiber. A COP solution was flowed in a closed loop, in which the silver-coated tube was used as a part of the loop. Owing to the constant flowing speed of the COP solution and the airtight flowing environment, a COP layer was uniformly formed. The hollow fibers attain high performance and deliver multi-wavelength laser light from the infrared to the visible simultaneously. The method was successfully applied to the fabrication of practical hollow fibers with 2 m length for the near and mid-infrared lasers.

Original languageEnglish
Pages (from-to)1528-1531
Number of pages4
JournalOptics and Laser Technology
Issue number8
Publication statusPublished - 2007 Nov


  • Coating
  • Hollow fiber
  • Polymer film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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