| 摘要 |
An object of the present invention is to realize a compensation circuit which can cope with rapidly fluctuating polarization mode dispersion, and the configuration thereof is a polarization dispersion compensation circuit for compensating polarization mode dispersion which takes place when a signal propagates on a transmission path, characterized by comprising: a front-end compensation part configured as a transversal filter for shaping a waveform subjected to polarization mode dispersion; and a data tracking/recovery part including a PLL-type data recovery circuit having a loop frequency band higher than the fluctuation frequency of polarization mode dispersion, and that tracks the temporal fluctuation of the polarization mode dispersion to recover data.
|
