Method and apparatus for measuring polarization-mode dispersion

Details Method and apparatus for measuring polarization-mode dispersion Method and apparatus for measuring polarization-mode dispersion

2005-09-20

2005-09-20

Nguyen, Tu T. (Department: 2877)

Optics: measuring and testing

For optical fiber or waveguide inspection

Reexamination Certificate

active

06947129

ABSTRACT:
Polarization-mode dispersion (PMD) of an optical device, i.e. fiber or component is effected by launching a first pump laser beam of a fixed wavelength, a probe laser beam with a second fixed wavelength and a second pump laser beam having a variable wavelength and a polarization direction orthogonal to the other two beams into an optical device to generate three output signals which are input into a semiconductor optical amplifier to generate four-wave mixing (FWM) products. The average PMD of the device is computed by measuring the power of the FWM products versus the wavelength of the second pump laser beam.

REFERENCES:
patent: 6522818 (2003-02-01), Aso et al.
patent: 6687426 (2004-02-01), May et al.
patent: 6819428 (2004-11-01), Ogawa

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