Fabrication of hollow optical fiber with a vitreous film for CO2 laser light delivery

Katsumasa Iwai, Mitsunobu Miyagi, Shi Yi-Wei, Zhu Xiao-Song, Yuji Matsuura

Research output: Contribution to journalConference articlepeer-review


Vitreous film based on the structural unit R2SiO, where R is an organic group, is newly used as the reflection layer in the hollow optical fiber for CO2 laser delivery. A smooth vitreous film is formed at room temperature by using the liquid-phase coating technique. The vitreous film-coated silver hollow optical fibers achieve low-loss property for lasers in the infrared regions by properly selecting fabrication conditions. A hollow fiber with thicker vitreous film designed for CO2 laser light showed acceptable loss as an output tip. It is shown that the hollow tip is of high durability to withstand several cycles of autoclave sterilization.

Original languageEnglish
Article number71730Q
JournalProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Publication statusPublished - 2009
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX - San Jose, CA, United States
Duration: 2009 Jan 242009 Jan 25


  • CO laser
  • Hollow fiber
  • Infrared laser


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