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Title:
複合POTDRトレースを用いるファイバPMD評価方法
Document Type and Number:
Japanese Patent JP5037506
Kind Code:
B2
Abstract:
A method for screening fiber polarization mode dispersion using a polarization optical time domain reflectometer. A pulse radiation is emitted into the fiber under test, and the backscattered radiation is measured by the POTDR and used to obtain a POTDR trace. A composite trace of more than one POTDR trace is obtained. The composite trace is then analyzed to compare the variation of signals along the length of the fiber, the variation in signals relating to the level of PMD along the length of the fiber. Because high levels of PMD correspond to localized levels of low variability, by setting the variability of signal threshold sufficiently low, fibers having unacceptably high localized PMD can be identified and removed.

Inventors:
Chen, Shin
Hunt, Timothy El
Application Number:
JP2008519390A
Publication Date:
September 26, 2012
Filing Date:
June 20, 2006
Export Citation:
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Assignee:
CORNING INCORPORATED
International Classes:
G01M11/02; G01J4/04
Domestic Patent References:
JP2003106942A
JP2000510246A
JP2006505791A
JP2004119652A
Foreign References:
WO2004045113A2
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Kaori Kono
Hiroshi Higuchi



 
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