Patent ID: 6801721
Filing Date: 2004-10-05
Classification: H04B

Abstract:
A polarization mode dispersion compensator comprising:a polarization beam splitter having a first output and a second output; a first allpass filter optically coupled to the first output of the polarization beam splitter, said first allpass filter having an output; a first polarization rotation device optically coupled to the second output of the polarization beam splitter, said first polarization rotation device having an output; a second allpass filter optically coupled to the output of the first polarization rotation device, said second allpass filter having an output; a 2Ã—2 filter optically coupled to the output of the first allpass filter and the output of the second allpass filter, said 2Ã—2 filter having a first output and a second output; a second polarization rotation device optically coupled to the first output of the 2Ã—2 filter, said second polarization rotation device having an output; and, a polarization beam combiner optically coupled to the output of the second polarization rotation device and the second output of the 2Ã—2 filter.