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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 4, Iss. 12 — Dec. 10, 2006
  • pp: 712–714

New method for lightning location using optical ground wire

Zhaoyu Qin, Zhaogu Cheng, Zhiping Zhang, Jianqiang Zhu, and Feng Li  »View Author Affiliations

Chinese Optics Letters, Vol. 4, Issue 12, pp. 712-714 (2006)

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A new technology of lightning location is described, which is based on detecting the state of polarization (SOP) fluctuation of the laser light in the optic ground wire (OPGW). Compared with the conventional lightning location method, the new method is more accurate, more stable, and cheaper. Theories of Stokes parameters and Poincare sphere are introduced to analyze the SOP at the lightning strike point. It can be concluded that although the initial points of SOP on the Poincare sphere are random, the SOP fluctuation generated by lightning strike can still be accurately identified by detecting the velocity of polarization motion. A new algorithm to quantify the velocity is also introduced.

© 2006 Chinese Optics Letters

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(230.5440) Optical devices : Polarization-selective devices

Zhaoyu Qin, Zhaogu Cheng, Zhiping Zhang, Jianqiang Zhu, and Feng Li, "New method for lightning location using optical ground wire," Chin. Opt. Lett. 4, 712-714 (2006)

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