Method and apparatus for measuring the birefringence...

Optics: measuring and testing – For optical fiber or waveguide inspection

Reexamination Certificate

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C356S073000, C356S128000, C356S364000

Reexamination Certificate

active

07969562

ABSTRACT:
Disclosed is a method and apparatus for determining the birefringence autocorrelation length of a fiber in a non-destructive manner. The PMD of an optical fiber is measured over a first optical spectrum. A Faraday rotation angle is measured over a second optical spectrum. The birefringence autocorrelation length is determined from the measuring of the PMD and the Faraday rotation angle.

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Wuilpart et al., “Fully-distributed Polarization Properties of an Optical Fibre Using the Backscattering Technique,” 2000, Applications of Photonic Technology 4, Roger A. Lessard, George A. Lampropoulos, Editors, Proceedings of SPIE vol. 4087, pp. 396-404.

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