System and method for PMD measurement from coherent spectral...

Details System and method for PMD measurement from coherent spectral... System and method for PMD measurement from coherent spectral...

2005-03-01

2005-03-01

Stcyr, Daniel (Department: 2876)

Optical waveguides

Polarization without modulation

Reexamination Certificate

active

06862377

ABSTRACT:
Methods and systems allow an in situ determination of the magnitude of PMD in an optical network and provide an estimate of the PMD impairment in the transmitted signal even when PMD is time dependent.

REFERENCES:
patent: 6362874 (2002-03-01), Madsen
patent: 6563590 (2003-05-01), Chowdhury et al.
patent: 20030108267 (2003-06-01), Bandemer et al.
Heismann, Fred et al., “Automatic Compensation of First-Order Polarization Mode Dispersion in a 10Gb/s Transmission System”, ECEC 98, Sep. 20-24, 1998, Madrid, Spain, pp. 529-530.
Sunnerud, Henrik et al., “A Comparison Between Different PMD Compensation Techniques”, Journal of Lightwave Technology, vol. 20, No. 3, Mar. 2002, pp. 368-378.
Poti, Luca et al., “Experimental Demonstration of a PMD Compensator with a Step Control Algorithm”, IEEE Photonics Technology Letters, vol. 13, No. 12, Dec. 2001, pp. 1367-1369.
Song, Shuxian et al., “A Poincare Sphere Method for Measuring Polarization-Mode Dispersion Using Four-Wave Mixing (FWM) in Single-Model Optical Fiber”, pp. 79-82.
Calvani, Riccardo et al., “Real-Time Heterodyne Fiber Polarimetry with Narrow-and Broad-Band Sources”, Journal of Lightwave Technology, vol. LT-4, No. 7, Jul. 1986, pp. 877-883.

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