Title :
Analysis of PMD compensators with fixed DGD using importance sampling
Author :
Lima, I.T., Jr. ; Biondini, G. ; Marks, B.S. ; Kath, W.L. ; Menyuk, C.R.
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA
fDate :
5/1/2002 12:00:00 AM
Abstract :
In this letter, we use importance sampling to analyze polarization-mode dispersion compensators with a constant differential group delay (DGD) element. We optimize the value of the fixed DGD element of the compensator with respect to the outage probability. We show that the optimum value of the fixed DGD element of the compensator can reduce the outage probability by several orders of magnitude, even though it does not provide a substantial reduction of the average penalty due to polarization-mode dispersion in the cases that we studied. By contrast, choosing the fixed DGD element to maximally reduce the average penalty may lead to an outage probability that is orders of magnitude larger than the optimal choice.
Keywords :
compensation; importance sampling; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical fibre theory; optimisation; PMD compensators; average penalty; constant differential group delay element; fixed DGD; fixed DGD element; importance sampling; optical fiber dispersion; optical fiber polarization; optical fibre communications; optimal choice; optimum value; outage probability; polarization-mode dispersion; polarization-mode dispersion compensators; Biomedical optical imaging; Bit error rate; Delay; Lead; Monte Carlo methods; Optical distortion; Optical fiber polarization; Optical fibers; Optical pulses; Polarization mode dispersion;
Journal_Title :
Photonics Technology Letters, IEEE
