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Theory of backward Rayleigh scattering in polarization-maintaining single-mode fibers and its application to polarization optical time domain reflectometry

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1 Author(s)
Nakazawa, M. ; NTT Corp., Ibaraki, Japan

Backward Rayleigh scattering in polarization-maintaining single-mode optical fibers has been theoretically analyzed. A simple formula for the backscattered power, which comes back again at an input portion of the fiber, is derived with a recapture factor Sxy. By applying the analysis to a polarization optical time domain reflectometry (POTDR), details of the POTDR have been made clear. The important results are that the fluctuation component in the POTDR is attributable to a polarization beat length of the fiber, and that the quantity of the polarization component occupied in the total back-scattered power is determined by the optical pulse width.

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Quantum Electronics, IEEE Journal of  (Volume:19 ,  Issue: 5 )