Performance comparison of 40 Gb/s ULH transmissions using CSRZ-ASK or CSRZ-DPSK modulation formats on Ultra Wave™ fiber

Year: 2007

Authors: Pincemin E., Tan A., Tonello A., Wabnitz S., Ania-Castañón J.D., Mezentsev V., Turitsyn S., Jaouën Y., Grüner-Nielsen L.

Autors Affiliation: France Telecom, Research and Development Division, Technopôle Anticipa, 2 Avenue Pierre Marzin, 22307 Lannion Cedex, France; Institut Carnot de Bourgogne, UMR CNRS 5209, 9 Avenue Alain Savary, 21078 Dijon, France; Photonics Research Group, School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, United Kingdom; GET/Telecom Paris, CNRS UMR 5141, 46 rue Barrault, 75634 Paris Cedex, France; OFS Fitel Denmark, Priorparken 680, DK-2605 Brondby, Denmark; XLIM, Département Photonique, UMR CNRS 6172, 123 Avenue Albert Thomas, 87060 Limoges, France

Abstract: In this work we present extensive comparisons between numerical modelling and experimental measurements of the transmission performance of either CSRZ-ASK or CSRZ-DPSK modulation formats for 40-Gb/s WDM ULH systems on UltraWave™ fiber spans with all-Raman amplification. We numerically optimised the amplification and the signal format parameters for both CSRZ-DPSK and CSRZ-ASK formats. Numerical and experimental results show that, in a properly optimized transmission link, the DPSK format permits to double the transmission distance (for a given BER level) with respect to the ASK format, while keeping a substantial OSNR margin (on ASK modulation) after the propagation in the fiber line. Our comparison between numerical and experimental results permits to identify what is the most suitable BER estimator in assessing the transmission performance when using the DPSK format.

Journal/Review: OPTICS EXPRESS

Volume: 15 (18)      Pages from: 11142  to: 11153

KeyWords: Bit error rate; Computer simulation; Light modulation; Optical fibers; Optical links; Phase shift keying, CSRZ-DPSK modulation; Signal format; Ultra Wave™ fiber, Light transmission
DOI: 10.1364/OE.15.011142

Citations: 2
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