Fabrication of 50-μm-bore hollow fiber for infrared transmission

Katsumasa Iwai, Kouki Takahashi, Hiroyuki Takaku, Mitsunobu Miyagi, Yi Wei Shi, Yuji Matsuura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Extremely flexible hollow fibers with 50 μm-bore size were developed for infrared laser light delivery. The hollow fiber was inner coated with silver and a dielectric layer to enhance the reflection rate at an objective wavelength band. The silver layer was inner-plated by using the conventional silver mirror-plating technique. Concerning the fabrication parameters used up to now for 320-μm bore-sized fibers, the target flowing rate for plating solutions was 10 ml/min. Parallelly arranged bundles of silica capillary were used to increase the cross-sectional area. To achieve the target, bundles with 4800 pieces were used for the capillary with a length of 20 cm and inner diameters of 50 μm. The loss for the 50 μm bore size, 10 cm length silver hollow fiber was 6 dB at the wavelength of 1 μm. Thin dielectric layer was formed by using liquid-phase coating method for low-loss transmission of Nd:YAG and Er:YAG laser light.

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV
PublisherSPIE
ISBN (Print)9780819498519
DOIs
Publication statusPublished - 2014
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV - San Francisco, CA, United States
Duration: 2014 Feb 12014 Feb 2

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8938
ISSN (Print)1605-7422

Other

OtherOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV
CountryUnited States
CitySan Francisco, CA
Period14/2/114/2/2

Keywords

  • Coating
  • Dielectric layer
  • Hollow fiber
  • Infrared
  • Laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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