Abstract
We proposed a degree of polarization (DOP) controlling multi-stage electrical polarization mode dispersion (PMD) compensator in digital coherent receiver. The compensator is modulation format independent and can mitigate both first order and higher order PMD. We evaluated this PMD compensator in both 100-Gb/s 16-QAM and QPSK signal transmission systems with 15ps and 20ps average differential group delay (DGD) respectively. The results show that, for both two cases, less than 0.2dB optical signal to noise ratio (OSNR) penalty at 1e−3 symbol error rate (SER) can be achieved after 4-stage PMD compensation.
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