Concurrent three-dimensional characterization of the refractive-index and residual-stress distributions in optical fibers | Zendy

Michael R. Hutsel | Zendy; Thomas K. Gaylord | Zendy

Open Access

Concurrent three-dimensional characterization of the refractive-index and residual-stress distributions in optical fibers

Author(s) -

Michael R. Hutsel,

Thomas K. Gaylord

Publication year - 2012

Publication title -

applied optics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.668

H-Index - 197

eISSN - 2155-3165

pISSN - 1559-128X

DOI - 10.1364/ao.51.005442

Subject(s) - optics , refractive index , materials science , residual stress , characterization (materials science) , residual , optical fiber , physics , composite material , computer science , algorithm

A three-dimensional index-stress distribution (3DISD) measurement method for determining concurrently the refractive-index distributions (RIDs) and residual-stress distributions (RSDs) in optical fibers is presented. The method combines the quantitative-phase microscopy technique, the Brace-Köhler compensator technique, and computed tomography principles. These techniques are implemented on a common apparatus to enable concurrent characterization of the RID and the RSD. Measurements are performed on Corning SMF-28 fiber in an unperturbed section and in a section exposed to CO(2) laser radiation. The concurrent measurements allow for the first accurate comparison of the collocated RID and RSD. The resolutions of the refractive index and stress are estimated to be 2.34×10(-5) and 0.35 MPa, respectively.

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