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Frontiers of Optoelectronics

, Volume 10, Issue 2, pp 160–165 | Cite as

Generation and transmission analysis of 4-ary frequency shift keying based on dual-parallel Mach-Zehnder modulator

  • Liu Yang
  • Fengguang Luo
Research Article
  • 29 Downloads

Abstract

We proposed an optical 4-ary frequency shift keying (FSK) modulation scheme applying dual-parallel Mach-Zehnder (MZ) modulator. The 4-ary FSK based on the single-side-band modulation scheme can greatly lower the transmission speed in each sub-carriers and increase the transmission performance, comparing with the 2-FSK signal. The transmission performance of the 4-ary FSK was demonstrated after a 50 km single mode fiber. The results showed that the 4-ary FSK can realize error-free transmission. Moreover, we analyzed the influence of factors (such as disperse compensation and demodulation bandwidth) on the transmission performance in this paper. The analysis of the influenced factors can provide a theoretical basic for experiment.

Keywords

4-ary frequency shift keying (FSK) modulation scheme disperse compensation 

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Notes

Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 61471179 and 61301226), and the High Technology Research and Development Program of China (No. 2015AA016904).

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Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.National Engineering Laboratory for Next Generation Internet Access System, School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhanChina

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