Fabrication of cyclic olefin polymer (COP)-coated silver hollow glass waveguides for the infrared

Yi Wei Shi, You Wang, Yukio Abe, Yuji Matsuura, Mitsunobu Miyagi, Hiroshi Uyama, Manabu Taniwaki, Shunichi Sato

Research output: Contribution to journalConference articlepeer-review

14 Citations (Scopus)


Cyclic Olefin Polymer (COP)-coated silver hollow glass waveguides were proposed and fabricated for infrared laser light transmission such as Er:YAG, CO, and CO2 lasers. Silver mirror reaction and liquid-flow coating technique were employed to form the silver and dielectric layers inside the fused glass capillary tube for the simplicity, lower cost and potentiality of mass-production. Hollow waveguides with the length of 2m and the inner diameters of 700 μm and 1mm have been successfully fabricated. It is shown that COP-coated silver hollow glass waveguides can be used to transmit Er:YAG, CO, and CO2 laser light with low losses when the thickness of COP layer is properly chosen. The measured spectra in the visible and mid-infrared regions also show that uniform films were deposited inside the tube. Comparisons were also made among the waveguides that were inner-coated with other dielectric materials used before.

Original languageEnglish
Pages (from-to)96-102
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1998
EventProceedings of Surgical-Assist Systems - San Jose, CA, United States
Duration: 1998 Jan 251998 Jan 28


  • CO
  • CO laser
  • Cyclic olefin polymer
  • Er:YAG
  • Hollow waveguide


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