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Applied Optics

Applied Optics


  • Vol. 39, Iss. 19 — Jul. 1, 2000
  • pp: 3192–3196

Attenuation measurement of infrared optical fibers by use of a hollow-taper-based coupling method

Ilko K. Ilev, Ronald W. Waynant, and Michael A. Bonaguidi  »View Author Affiliations

Applied Optics, Vol. 39, Issue 19, pp. 3192-3196 (2000)

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An alternative method for attenuation measurement of infrared (IR) fibers is described. The method includes a simple technique for direct laser-to-fiber coupling with an uncoated glass hollow taper. The operating principle of the hollow taper is based on the grazing-incidence effect of light reflection. The hollow taper forms a smooth Gaussian-shaped profile of the output laser emission and provides the proper conditions for equilibrium-mode distribution of optical power within the test IR fibers. The experimental hollow-taper-based coupling method is used for measurement of attenuation and bending losses of various kinds of IR fiber, including solid-core (fluoride, chalcogenide, and germanium-doped) and hollow fibers.

© 2000 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components

Original Manuscript: November 5, 1999
Revised Manuscript: April 10, 2000
Published: July 1, 2000

Ilko K. Ilev, Ronald W. Waynant, and Michael A. Bonaguidi, "Attenuation measurement of infrared optical fibers by use of a hollow-taper-based coupling method," Appl. Opt. 39, 3192-3196 (2000)

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