Interferometric determination of a transfer function of a...

Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer

Reexamination Certificate

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Reexamination Certificate

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11503106

ABSTRACT:
A method of evaluating a device under test (DUT) includes detecting four interferograms of the DUT including two orthogonal detections and two orthogonal input polarizations, performing a Hilbert transformation to obtain transfer functions of the DUT on the basis of the detected interferograms, performing an Inverse Fourier transformation on the transfer functions of the DUT to get an impulse response matrix IR of the DUT, and determining impulse response eigenvalues of the DUT on the basis of the impulse response matrix of the DUT.

REFERENCES:
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patent: 1 286 150 (2002-07-01), None
patent: 2003/106944 (2003-09-01), None
Kieckbusch et al, Fast and accurate charactorization of fiber Bragg gratings with high spatial and spectral resolution, Optical Fiber Communications Confrence, 2003, OFC 2003, Mar. 2003, pp. 379-381.
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Automated Measurement of Polarization Mode Dispersion Using Jones Matrix Eigenanalysis, IEEE Photonics Technology Letters, vol. 4, No. 9, Sep. 1992, B.L. Heffner, pp. 1066-1069.
Deterministic, Analytically Complete Measurement of Polarization-Dependent Transmission Through Optical Devices, IEEE Photonics Technology Letters, vol. 4, No. 5, May 1992, B.L. Heffner, pp. 451-454.
LiNbO3-based integrated optical network analyzer for vertical structure characterization on fibre Bragg grantings, IEEE Proceedings online No. 20030762, Feb. 22, 2003, S. Bhandare, et al, pp. 490-494.
International Search Report Dated Oct. 27, 2004.

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