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Optics Letters

Optics Letters


  • Vol. 23, Iss. 2 — Jan. 15, 1998
  • pp: 109–110

Graded-index characteristics in single-crystal fibers

J. H. Sharp, R. Illingworth, and I. S. Ruddock  »View Author Affiliations

Optics Letters, Vol. 23, Issue 2, pp. 109-110 (1998)

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Single-crystal fibers of Ti3+:Al2O 3have been grown by the laser-heated pedestal growth technique and shown to exhibit radial refractive-index gradients. A refractive-index increase of approximately 12% in the fiber core with respect to the fiber sidewalls has been measured. The index profile can be fitted with a parabolic model. Postgrowth treatment of Cr3+:Gd3Sc 2Al 3O12fibers has been shown to produce a uniform cladding region with a graded-index core. The core index is some 12.5% larger than the cladding region, with an index profile shape that is approximately parabolic in nature.

© 1998 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2430) Fiber optics and optical communications : Fibers, single-mode

J. H. Sharp, R. Illingworth, and I. S. Ruddock, "Graded-index characteristics in single-crystal fibers," Opt. Lett. 23, 109-110 (1998)

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