Polarization mode dispersion measuring device, method,...

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

Reexamination Certificate

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Reexamination Certificate

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07006207

ABSTRACT:
A device for measuring τPMDincludes a polarization controller (12) that allows first (second) incident light, in a synthetic incident light to an object to be measured (30), to be in line with a p-polarization (s-polarization) axis in a polarization separator (16). The phase shift equivalent value (optical angle frequency differentiation) and amplitude equivalent value (square value) of a first (second) incident light component in an output from the polarization separator (16) measured by a first (second) measuring unit (20a, 20b) are respectively the phase shift equivalent value and amplitude equivalent value of a first column T11, T21(second column T12, T22) when the transfer function matrix of the object (30) is a 2×2 matrix to thereby allow a control unit (2) to determine the polarization mode dispersion τPMDof the object (30).

REFERENCES:
patent: 6362874 (2002-03-01), Madsen
patent: 6519027 (2003-02-01), Gordon et al.
patent: 6586724 (2003-07-01), Graves
patent: 9-72827 (1997-03-01), None
patent: 9-264814 (1997-07-01), None

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