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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 10 — Apr. 1, 2002
  • pp: 1989–1994

Elasto-optics in double-coated optical fibers induced by axial strain and hydrostatic pressure

Yu-Ching Yang, Haw-Long Lee, and Huann-Ming Chou  »View Author Affiliations


Applied Optics, Vol. 41, Issue 10, pp. 1989-1994 (2002)
http://dx.doi.org/10.1364/AO.41.001989


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Abstract

Stresses, microbending loss, and refractive-index changes induced simultaneously by axial strain and hydrostatic pressure in double-coated optical fibers are analyzed. The lateral pressure and normal stresses in the optical fiber, primary coating, and secondary coating are derived. Also presented are the microbending loss and refractive-index changes in the glass fiber. The normal stresses are affected by axial strain, hydrostatic pressure, material properties, and thickness of the primary and secondary coatings. It is found that microbending loss decreases with increasing thickness, the Young’s modulus, and the Poisson’s ratio of the secondary coating but increases with the increasing Young’s modulus and Poisson’s ratio of the primary coating. Similarly, changes in refractive index in the glass fiber decrease with the increasing Young’s modulus and Poisson’s ratio of the secondary coating but increase with the increasing Young’s modulus and Poisson’s ratio of the primary coating. Therefore, to minimize microbending loss induced simultaneously by axial strain and hydrostatic pressure in the glass fiber, the polymeric coatings should be suitably selected. An optimal design procedure is also indicated.

© 2002 Optical Society of America

OCIS Codes
(160.0160) Materials : Materials
(160.4760) Materials : Optical properties

History
Original Manuscript: August 6, 2001
Revised Manuscript: October 24, 2001
Published: April 1, 2002

Citation
Yu-Ching Yang, Haw-Long Lee, and Huann-Ming Chou, "Elasto-optics in double-coated optical fibers induced by axial strain and hydrostatic pressure," Appl. Opt. 41, 1989-1994 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-10-1989


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References

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