Wavelength dependence of stress-induced time of flight variations

N. Kashima, T. Endou

Research output: Contribution to journalArticle

6 Citations (Scopus)


In this paper, we measured the stress-induced time of flight variations in silica-fibers for λ =0.67μm∼ 1.65μm. For measurements, the phase method was used to detect the phase change of the modulated wave propagating in a fiber with and without stress. It is found that the measured time of flight variations due to stress have clear wavelength dependence. It is very important to evaluate the photo-elastic constant as a basic constant of silica fibers. In this paper, we propose to evaluate the photo-elastic constant based on the measured stress-induced time of flight variations. Using this method, we evaluate the photo-elastic constant in a wide wavelength range (λ =0.44μm∼ 1.65μm). It is found that the evaluated photo-elastic constant has clear wavelength dependence. We also discuss the error of the proposed evaluation method and the origin of wavelength dependence of the photo-elastic constant.

Original languageEnglish
Pages (from-to)329-334
Number of pages6
JournalJournal of Optical Communications
Issue number6
Publication statusPublished - 2006 Dec


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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