• Chinese Journal of Lasers
  • Vol. 40, Issue 3, 308007 (2013)
Zhang Li*, Wang Anbang, Li Kai, and Wang Yuncai
Author Affiliations
  • [in Chinese]
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    DOI: 10.3788/cjl201340.0308007 Cite this Article Set citation alerts
    Zhang Li, Wang Anbang, Li Kai, Wang Yuncai. Fiber Fault Visible Chaotic Optical Time Domain Reflectometry Measurement Method[J]. Chinese Journal of Lasers, 2013, 40(3): 308007 Copy Citation Text show less

    Abstract

    A method for fiber fault location with distance measurement and visual fault search is presented. Broadband red chaotic signal, generated by utilizing the optical feedback of a red diode laser, is used as the signal light. Distance measurement between initial point and fiber fault is obtained by correlation between reference and back reflected signal waveform. Further visible search is realized by the dazzling spot at fault position owing to the leakage of signal light exactly. Experimental results demonstrate that the proposed method can realize the locations of single and multiple fiber faults, and the fiber fault at about 500 m is measured with a resolution of 3.9 cm, which is independent of the range of the fault position.
    Zhang Li, Wang Anbang, Li Kai, Wang Yuncai. Fiber Fault Visible Chaotic Optical Time Domain Reflectometry Measurement Method[J]. Chinese Journal of Lasers, 2013, 40(3): 308007
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