Wavelength dependence of stress-induced time of flight variations in graded-index multimode fibers

N. Kashima, T. Kawashima, S. Miyauchi

研究成果: Article査読

抄録

We investigate the wavelength dependence of stress-induced time of flight variations in graded-index multimode fibers (GI-MMFs) for wavelength λ = 1.26 μm ∼1.58 μm, theoretically and experimentally. Calculations were made based on simple equations using the refractive index of silica fibers. We measured the wavelength dependence of stress-induced time of flight variations by a newly proposed measurement method. We confirmed the similar wavelength dependence of GI-MMFs to that for standard single mode fibers (SSMF). However, the value of them is different. We compare the experimental and theoretical results for two types of fibers. The comparison indicates that the difference of stress-induced time of flight variations between two types of fibers is mainly due to the group velocity difference. We conclude that there is no significant difference of the photo-elastic constant between the measured SSMFs and GI-MMFs. Although many properties of GI-MMFs depended on the mode power distribution in general, we conclude the dependence of stress-induced time of flight variations on mode power distribution is small for the measured fibers.

本文言語English
ページ(範囲)7-12
ページ数6
ジャーナルOptical Fiber Technology
25
DOI
出版ステータスPublished - 2015 10 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 制御およびシステム工学
  • 原子分子物理学および光学
  • 器械工学
  • 電子工学および電気工学

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