Impact of time-interleaving on directly-detected 100-Gb/s POLMUX RZ-DQPSK robustness to PDL-induced crosstalk.
The impact of PDL-induced crosstalk on 100-Gb/s POLMUX RZ-DQPSK performance is investigated both experimentally and through numerical simulations in direct detection systems. We found that RZ time-interleaving, contrary to what happens with PMD, features a strong robustness to PDL. The detrimental effect of optical narrow filtering on PDL-induced penalty is also analyzed; RZ time-interleaving still proves the best solution to deal with the PDL issue.
Boffi
P
P
PoliCom, Dept. of Electronics and Information, Politecnico di Milano, Via G. Colombo 81, 20133 Milano, Italy. boffi@elet.polimi.it
Ferrario
M
M
Marazzi
L
L
Martelli
P
P
Parolari
P
P
Siano
R
R
Martinelli
M
M