Polarization-Mode-Dispersion Compensation for Wideband Optical Signals

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Polarization mode dispersion (PMD), as well as other polarization effects, such as polarization dependent loss (PDL), has become a key factor that limits transmission rates and distances in high-speed fiber systems. Present technology allows polarization control and compensation of first-order PMD for a single wavelength. Current solutions do not apply to situations with wideband optical signals where the PMD varies across the optical bandwidth.

Researchers at Purdue University have developed a novel method that controls the polarization state of light and compensates PMD and PDL independently on a wavelength-by-wavelength basis.

Advantages:
-Allows lightwave communication systems to run at higher speeds over longer distances
-Capability to restore a single wavelength independent polarization state

Potential Applications:
-Optics
-Telecommunications
Mar 28, 2008
CON-Patent
United States
7,689,125
Mar 30, 2010

May 24, 2001
Utility Patent
United States
7,369,773
May 6, 2008

May 24, 2001
PCT-Patent
WO
(None)
(None)

May 24, 2000
Provisional-Patent
United States
(None)
(None)
Purdue Office of Technology Commercialization
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