Residual stress relaxation in cleaved fibers

In Hee Shin, Bok Hyeon Kim, Suhas Poyyil Veetil, Won Taek Han, Dug Young Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The relaxation of intrinsic stress, in particular, the frozen-in stress in the vicinity of the cleaved end of optical fibers is studied. Stress distribution is measured at many cross sections along the fiber using a conventional polariscopic stress measurement technique. Fibers drawn with different tensions are used to study the dependence of stress release on the draw tension. From the measured frozen-in stress, the frozen-in viscoelastic stress is studied through the calculation of mean axial stress. The dependence of the release of viscoelastic stress on the draw tension is established. Though the presence of residual stress shows a sudden decline as a consequence of cleaving, it is not completely released at the cleaved end and is explained by the frozen-in viscoelastic stress in the optical fiber. The study shows that the relaxation of frozen-in viscoelastic stress near the cleaved fiber end is only a fraction of the amount of total residual stress in the optical fiber.

Original languageEnglish
Pages (from-to)75-79
Number of pages5
JournalOptics Communications
Volume281
Issue number1
DOIs
Publication statusPublished - 2008 Jan 1

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stress relaxation
Stress relaxation
residual stress
Residual stresses
fibers
Fibers
Optical fibers
optical fibers
axial stress
stress measurement
Stress measurement
stress distribution
Stress concentration
cross sections

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Shin, In Hee ; Kim, Bok Hyeon ; Veetil, Suhas Poyyil ; Han, Won Taek ; Kim, Dug Young. / Residual stress relaxation in cleaved fibers. In: Optics Communications. 2008 ; Vol. 281, No. 1. pp. 75-79.
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Residual stress relaxation in cleaved fibers. / Shin, In Hee; Kim, Bok Hyeon; Veetil, Suhas Poyyil; Han, Won Taek; Kim, Dug Young.

In: Optics Communications, Vol. 281, No. 1, 01.01.2008, p. 75-79.

Research output: Contribution to journalArticle

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AU - Shin, In Hee

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AB - The relaxation of intrinsic stress, in particular, the frozen-in stress in the vicinity of the cleaved end of optical fibers is studied. Stress distribution is measured at many cross sections along the fiber using a conventional polariscopic stress measurement technique. Fibers drawn with different tensions are used to study the dependence of stress release on the draw tension. From the measured frozen-in stress, the frozen-in viscoelastic stress is studied through the calculation of mean axial stress. The dependence of the release of viscoelastic stress on the draw tension is established. Though the presence of residual stress shows a sudden decline as a consequence of cleaving, it is not completely released at the cleaved end and is explained by the frozen-in viscoelastic stress in the optical fiber. The study shows that the relaxation of frozen-in viscoelastic stress near the cleaved fiber end is only a fraction of the amount of total residual stress in the optical fiber.

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