Title :
The Effects of Polarization-Mode Dispersion on the Phase of the Recovered Clock
Author :
Benlachtar, Yannis ; Killey, Robert I. ; Bayvel, Polina
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London
Abstract :
The impact of polarization-mode dispersion (PMD) on the phase of the recovered clock in the receiver is analyzed. The effects of first-order PMD on different clock-recovery configurations utilized for return-to-zero (RZ) and non-RZ (NRZ) formats are studied. Closed-form expressions relating the PMD-induced sampling time shift with the differential group delay and the power ratio between the principal states of polarization are obtained for each high-Q filter-based clock recovery. An experimental validation at 10 Gb/s is also shown for the case of NRZ data format
Keywords :
Q-factor; delays; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical filters; optical modulation; optical receivers; synchronisation; clock recovery; closed-form expressions; differential group delay; high-Q filter; nonreturn-to-zero format; polarization-mode dispersion; principal polarization states; receiver; recovered clock phase; return-to-zero format; sampling time shift; Bit error rate; Circuits; Clocks; Closed-form solution; Delay effects; Optical fiber polarization; Optical signal processing; Polarization mode dispersion; Q factor; Sampling methods; High-$Q$ filter-based clock recovery; polarization-mode dispersion (PMD);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.883125
