Fabrication of a rugged polymer-coated silver hollow fiber with a vitreous film for the infrared

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

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

3 Citations (Scopus)

Abstract

A rugged hollow fiber is fabricated by liquid-phase coating techniques. A silica glass capillary is used as the substrate and a vitreous film is firstly coated on the inner surface of the capillary to protect the glass tube from moisture. This protective coating keeps the thin-wall glass tube away from damage due to the following silver plating process. On the protective coating, a silver film is deposited by the conventional mirror plating technique. Subsequently, a polymer film is coated on the silver film to reduce transmission loss by employing interference effect of the polymer film. Fabrication processes and transmission properties of the rugged polymer-coated silver hollow fiber were discussed. The loss for the 700-μm-bore size, 1-m-length hollow fiber was 2 dB under straight configuration, and 3.5 dB under the configuration of a 270 degree bending with a 15-mm bending radius at the wavelength of 2.94 μm.

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIII
DOIs
Publication statusPublished - 2013
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIII - San Francisco, CA, United States
Duration: 2013 Feb 22013 Feb 3

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8576
ISSN (Print)1605-7422

Conference

ConferenceOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIII
Country/TerritoryUnited States
CitySan Francisco, CA
Period13/2/213/2/3

Keywords

  • coating
  • dielectric layer
  • hollow fiber
  • infrared
  • laser

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