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Theoretical Investigation of First-order and Second-order Polarization-mode Dispersion Tolerance on Various Modulation Formats in 40 Gb/s Transmission Systems with FEC Coding

Authors
Jang, HodeokKim, KyoungsooLee, JaehoonJeong, Jichai
Issue Date
6월-2009
Publisher
OPTICAL SOC KOREA
Keywords
Polarization mode dispersion; Tolerance; Forward error correction; Coding gain
Citation
JOURNAL OF THE OPTICAL SOCIETY OF KOREA, v.13, no.2, pp.227 - 233
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF THE OPTICAL SOCIETY OF KOREA
Volume
13
Number
2
Start Page
227
End Page
233
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119857
DOI
10.3807/JOSK.2009.13.2.227
ISSN
1226-4776
Abstract
We investigated the polarization-mode, dispersion (PAID) tolerance for 40Gb/s non-return to zero (NEZ), duobinary NRZ, return to zero (RZ), carrier-suppressed RZ (CS-RZ), and duobinary-carrier-suppressed RZ (DCS-RZ) inoculation formats with a forward error correction (FEC) coding. The power penalty has been calculated as a measure of the system performance due to PMD. After comparison of the PAID tolerance of various modulation formats, our results suggest that, RZ signals have the best tolerance against the effect of first-order PMD only. The duobinary NRZ modulation format is most, resilient to PMD when both first- and second-order PMD are considered. However, the duobinary NRZ modulation format is the most sensitive to the incident angle of the input signal to a fiber axis in the presence of first- and second-order PMD, leading to incident angle-dependent; power penalty. The coding gain by FEC call cope with the power penalties induced by first- and second-order PMD up to a DGD value of 16ps.
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