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Verlagsausgabe
DOI: 10.5445/IR/1000066007
Veröffentlicht am 16.11.2018
Originalveröffentlichung
DOI: 10.1364/OE.25.001618
Scopus
Zitationen: 18
Web of Science
Zitationen: 14

Fiber nonlinearity mitigation of WDM-PDM QPSK/16-QAM signals using fiber-optic parametric amplifiers based multiple optical phase conjugations

Hu, H.; Jopson, R. M.; Gnauck, A. H.; Randel, S.; Chandrasekhar, S.

Abstract:
We demonstrate fiber nonlinearity mitigation by using multiple optical phase conjugations (OPCs) in the WDM transmission systems of both 8 × 32-Gbaud PDM QPSK channels and 8 × 32-Gbaud PDM 16-QAM channels, showing improved performance over a single mid-span OPC and no OPC in terms of nonlinear threshold and a best achievable Q2 factor after transmission. In addition, after an even number of OPCs, the signal wavelength can be preserved after transmission. The performance of multiple OPCs for fiber nonlinearity mitigation was evaluated independently for WDM PDM QPSK signals and WDM PDM 16-QAM signals. The technique of multiple OPCs is proved to be transparent to modulation formats and effective for different transmission links. In the WDM PDM QPSK transmission system over 3600 km, by using multiple OPCs the nonlinear threshold (i.e. optimal signal launched power) was increased by ~5 dB compared to the case of no OPC and increased by ~2 dB compared to the case of mid-span OPC. In the WDM PDM 16-QAM transmission system over 912 km, by using the multiple OPCs the nonlinear threshold was increased by ~7 dB compared to the case of no OPC a ... mehr


Zugehörige Institution(en) am KIT Institut für Photonik und Quantenelektronik (IPQ)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 1094-4087
URN: urn:nbn:de:swb:90-660076
KITopen-ID: 1000066007
Erschienen in Optics express
Band 25
Heft 3
Seiten 1618-1628
Nachgewiesen in Web of Science
Scopus
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