Effect of secondary coating on the fatigue and aging of fused silica fibers

V. M. Thirtha, Michael Matthewson, C. R. Kurkjian, K. C. Yoon, J. S. Yoon, C. Y. Moon

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

The mechanical reliability of fused silica glass fibers is significantly influenced by the properties of their polymer coatings. The primary coating, which is in contact with the fiber surface, is expected to control the chemistry there, but the secondary coating does have a considerable effect on the strength and aging behavior of the fiber. This observation is confirmed by data obtained for ten fused silica fibers, having the same primary coatings but ten different secondary coatings. These fibers were aged at 85°C in both de-ionized water and 85% relative humidity for up to 6 weeks and the residual strength as a function of aging time was measured. Dynamic fatigue measurements were carried out on as received and aged fibers using two-point bending. The results show that the secondary coating has a notable effect on the aging behavior and the coating strip force, but does not greatly influence the dynamic fatigue parameter.

Original languageEnglish (US)
Pages (from-to)75-81
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4639
DOIs
StatePublished - Jan 1 2002
EventOptical Fiber and Fiber Component Mechanical Reliability and Testing - San Jose, CA, United States
Duration: Jan 21 2002Jan 21 2002

Fingerprint

Fused Silica
Fused silica
Fatigue
Coating
Aging of materials
Fiber
Fatigue of materials
silicon dioxide
coatings
Coatings
fibers
Fibers
residual strength
Relative Humidity
silica glass
glass fibers
Glass fibers
Chemistry
Strip
humidity

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Coating
  • Dynamic fatigue
  • Fused silica
  • Optical fiber
  • Strip force
  • Two-point bending
  • Zero-stress aging

Cite this

Thirtha, V. M. ; Matthewson, Michael ; Kurkjian, C. R. ; Yoon, K. C. ; Yoon, J. S. ; Moon, C. Y. / Effect of secondary coating on the fatigue and aging of fused silica fibers. In: Proceedings of SPIE - The International Society for Optical Engineering. 2002 ; Vol. 4639. pp. 75-81.
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Effect of secondary coating on the fatigue and aging of fused silica fibers. / Thirtha, V. M.; Matthewson, Michael; Kurkjian, C. R.; Yoon, K. C.; Yoon, J. S.; Moon, C. Y.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4639, 01.01.2002, p. 75-81.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Effect of secondary coating on the fatigue and aging of fused silica fibers

AU - Thirtha, V. M.

AU - Matthewson, Michael

AU - Kurkjian, C. R.

AU - Yoon, K. C.

AU - Yoon, J. S.

AU - Moon, C. Y.

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N2 - The mechanical reliability of fused silica glass fibers is significantly influenced by the properties of their polymer coatings. The primary coating, which is in contact with the fiber surface, is expected to control the chemistry there, but the secondary coating does have a considerable effect on the strength and aging behavior of the fiber. This observation is confirmed by data obtained for ten fused silica fibers, having the same primary coatings but ten different secondary coatings. These fibers were aged at 85°C in both de-ionized water and 85% relative humidity for up to 6 weeks and the residual strength as a function of aging time was measured. Dynamic fatigue measurements were carried out on as received and aged fibers using two-point bending. The results show that the secondary coating has a notable effect on the aging behavior and the coating strip force, but does not greatly influence the dynamic fatigue parameter.

AB - The mechanical reliability of fused silica glass fibers is significantly influenced by the properties of their polymer coatings. The primary coating, which is in contact with the fiber surface, is expected to control the chemistry there, but the secondary coating does have a considerable effect on the strength and aging behavior of the fiber. This observation is confirmed by data obtained for ten fused silica fibers, having the same primary coatings but ten different secondary coatings. These fibers were aged at 85°C in both de-ionized water and 85% relative humidity for up to 6 weeks and the residual strength as a function of aging time was measured. Dynamic fatigue measurements were carried out on as received and aged fibers using two-point bending. The results show that the secondary coating has a notable effect on the aging behavior and the coating strip force, but does not greatly influence the dynamic fatigue parameter.

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KW - Strip force

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