Title :
Polarization-dependent loss and its effect on the signal-to-noise ratio in fiber-optic systems
Author :
Shtaif, Mark ; Mecozzi, Antonio
Author_Institution :
Dept. of Phys. Electron, Tel-Aviv Univ., Israel
Abstract :
We study the effect of polarization-dependent loss (PDL) on the signal-to-noise ratio in fiber-optic systems. We show that in most cases of interest PDL-induced penalties result primarily from the coupling of noise generated with a polarization state orthogonal to that of the signal into the signals´ state of polarization. This mechanism sets a limit to the improvement that can be expected to result from the periodic use of dynamic gain equalizers along the link.
Keywords :
equalisers; optical fibre communication; optical fibre losses; optical fibre polarisation; optical noise; PDL; dynamic gain equalizer; fiber-optic systems; polarization state; polarization-dependent loss; signal-to-noise ratio; Degradation; Noise generators; Optical amplifiers; Optical attenuators; Optical fiber polarization; Optical losses; Optical noise; Optical polarization; Page description languages; Signal to noise ratio;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.819391
