Impact of time-interleaving on directly-detected 100-Gb/s POLMUX RZ-DQPSK robustness to PDL-induced crosstalk

P Boffi; M Ferrario; L Marazzi; P Martelli; P Parolari; R Siano; M Martinelli

doi:10.1364/OE.18.006972

Impact of time-interleaving on directly-detected 100-Gb/s POLMUX RZ-DQPSK robustness to PDL-induced crosstalk

Opt Express. 2010 Mar 29;18(7):6972-7. doi: 10.1364/OE.18.006972.

Authors

P Boffi¹, M Ferrario, L Marazzi, P Martelli, P Parolari, R Siano, M Martinelli

Affiliation

¹ PoliCom, Dept. of Electronics and Information, Politecnico di Milano, Via G. Colombo 81, 20133 Milano, Italy. boffi@elet.polimi.it

PMID: 20389716
DOI: 10.1364/OE.18.006972

Abstract

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.