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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 5, Iss. S1 — May. 31, 2007
  • pp: S70–S72

Hollow fiber using silver-clad stainless steel pipe with inner dielectric layer for CO2 laser light transmission

Akihito Hongo, Hiroaki Takamiya, and Tadashi Koike  »View Author Affiliations

Chinese Optics Letters, Vol. 5, Issue S1, pp. S70-S72 (2007)

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We have developed a rigid hollow fiber composed of a silver-clad stainless steel pipe. The inside wall of the pipe was polished to a mirror-smooth state, and after that a cyclic olefin polymer (COP) as a transparent dielectric material was coated on the inside of the silver layer. Transmission of CO2 laser light through the hollow fiber of 20-cm length with a 0.75-mm inside diameter was 95% under straight condition, and more than 75% under the condition of a 90 deg. bend with a 4-cm bending radius. This metallic hollow fiber is not very long or flexible, but it has great mechanical strength. For this reason, this sturdy metallic hollow fiber can be used for a laser probe mounted at the tip of a long optical transmission line.

© 2007 Chinese Optics Letters

OCIS Codes
(160.4670) Materials : Optical materials
(190.4400) Nonlinear optics : Nonlinear optics, materials
(210.4810) Optical data storage : Optical storage-recording materials
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.4000) Optical devices : Microstructure fabrication

Akihito Hongo, Hiroaki Takamiya, and Tadashi Koike, "Hollow fiber using silver-clad stainless steel pipe with inner dielectric layer for CO2 laser light transmission," Chin. Opt. Lett. 5, S70-S72 (2007)

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  1. J. A. Harrington, Infrared Fibers and Their Applications (SPIE Press, Bellingham, WA 2004).
  2. M. Miyagi and A. Hongo, "Hollow waveguide and method of making same" US patent 5995696 (1999).
  3. E. D. Palik, (ed.) Handbook of optical constants (Academic, Orlando, 1985).

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