Temperature dependence of strength and fatigue of fused silica fiber in the range 77 to 473 K

Michael Matthewson, Charles R. Kurkjian, Christopher D. Haines, Navin Venugopal

Research output: Contribution to journalConference article

8 Scopus citations


The strength of optical fiber at low temperature is an important parameter since it approximates the inert strength, i.e. the starting strength of the material before degradation by fatigue. Published data suggest that the fatigue may abruptly slow below some temperature. However, published data are limited to strength vs temperature or fatigue in liquid nitrogen. We report strength and fatigue data for both bare (stripped) and metal coated fused silica optical fiber at temperatures down to 77 K. While fatigue slows as the temperature is reduced (i.e. the stress corrosion parameter increases with falling temperature) fatigue is still measurable at 77 K. This is the case even for hermetic metal coated fiber with extremely low water activity at the glass surface. The results confirm that fused silica exhibits "intrinsic" fatigue, i.e. fatigue in the absence of moisture.

Original languageEnglish (US)
Pages (from-to)74-79
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - Aug 8 2003
EventReliability of Optical Fiber Components, Devices, Systems, and Networks - Brugge, Belgium
Duration: Oct 28 2002Oct 29 2002


All Science Journal Classification (ASJC) codes

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


  • Fatigue
  • Intrinsic fatigue
  • Optical fiber
  • Strength
  • Stress corrosion
  • Temperature

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