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Applied Optics

Applied Optics


  • Vol. 16, Iss. 9 — Sep. 1, 1977
  • pp: 2368–2371

Nondestructive interferometric measurement of the delta and alpha of clad optical fibers

M. J. Saunders and W. B. Gardner  »View Author Affiliations

Applied Optics, Vol. 16, Issue 9, pp. 2368-2371 (1977)

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It is shown that interferograms generated by passing light perpendicular to the axis of a fiber can be used to obtain the maximum refractive index difference and the index profile shape to better than ±10% accuracy in regions of the core where α is constant. This technique avoids the time consuming sample preparation required for the slab method, the propagation problems associated with the near-field technique, and the surface quality problem associated with the reflection technique.

© 1977 Optical Society of America

Original Manuscript: January 17, 1977
Published: September 1, 1977

M. J. Saunders and W. B. Gardner, "Nondestructive interferometric measurement of the delta and alpha of clad optical fibers," Appl. Opt. 16, 2368-2371 (1977)

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