Transmission properties of dielectric-coated hollow optical fibers based on Ni-Ti tube

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Ni-Ti tube is used as a supporting tube for the infrared hollow fiber to obtain flexibility and strong mechanical strength. In order to reduce roughness of inner surface of Ni-Ti tube which causes the additional transmission loss, an acrylic-silicon resin material is used as a buffer layer to the inner wall of Ni-Ti tube for a low-loss characteristic. For the dielectric inner-coating layer, cyclic olefin polymer (COP) is used to lower the transmission loss. The COP layer is formed by using liquid-phase coating method. The hollow fibers with optimized COP inner film thickness for CO2 laser light were fabricated and reasonable transmission losses was demonstrated.

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX
EditorsIsrael Gannot, Israel Gannot
PublisherSPIE
ISBN (Electronic)9781510632295
DOIs
Publication statusPublished - 2020
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX 2020 - San Francisco, United States
Duration: 2020 Feb 12020 Feb 2

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume11233
ISSN (Print)1605-7422

Conference

ConferenceOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX 2020
Country/TerritoryUnited States
CitySan Francisco
Period20/2/120/2/2

Keywords

  • CO2 laser
  • Coating
  • Hollow fiber
  • Ni-Ti tube

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