OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 17, Iss. 10 — Oct. 1, 1999
  • pp: 1823–

Residual Stresses in a Doubly Clad Fiber with Depressed Inner Cladding (DIC)

Y. Park, K. Oh, U. C. Paek, D. Y. Kim, and Charles R. Kurkjian

Journal of Lightwave Technology, Vol. 17, Issue 10, pp. 1823- (1999)

View Full Text Article

Acrobat PDF (320 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


Thermal and mechanical stresses developed in concentric three-layered optical fiber-core, and inner and outer cladding, have been throughly studied for various concentrations of dopants and geometric structures. In order to examine the parametric results of thermal stresses in preforms, the stresses were measured with a polariscope. The results agreed well with the theoretical calculations. The thermal stresses were calculated for three temperature ranges in which the glass in each layer has a different thermal expansion coefficient. The mechanical stresses were studied considering the normal stress in the molten neck down region and its development with time. In order to include the time dependence of the stress below softening point, Maxwell's one dimensional viscoelasticity was applied. In a parametric study, the analyzes were carried out based on the fiber parameters such as relative index difference, ratio of clad to core, and depressed relative index difference. With an increase of core index above the silica, the thermal stresses in core increased linearly, but the depressed inner clad does not affect the stresses in core. From the parametric studies and modeling it was found that when the depressed inner cladding (DIC) layer has a large cross-section or high dopant concentration, the mechanical stress in core change from compression to tension.


Y. Park, K. Oh, U. C. Paek, D. Y. Kim, and Charles R. Kurkjian, "Residual Stresses in a Doubly Clad Fiber with Depressed Inner Cladding (DIC)," J. Lightwave Technol. 17, 1823- (1999)

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited