A method for optimizing optical duobinary transmission systems

Shuai Wang; Xue Chen; Fangwei Fu; Weiqin Zhou; Sheping Shi

doi:10.1117/12.803379

11 November 2008 A method for optimizing optical duobinary transmission systems

Shuai Wang, Xue Chen, Fangwei Fu, Weiqin Zhou, Sheping Shi

Author Affiliations +

Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 71361B (2008) https://doi.org/10.1117/12.803379
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

DWDM networks have been evolving to higher spectral efficiency. To make optical duobinary format, which is considered as a suitable modulation format in MAN DWDM networks, can work in 50GHz channel spacing 43Gb/s DWDM networks is very significant. In this paper, it is pointed out that the delay time in delay-and-add optical duobinary system is one of key factors which affect system performance. The suitable delay time for 43Gb/s systems compatible 50GHz with 100GHz channel spacing is obtained by system simulation. The simulation results show that 0.8 bit delay time is more suitable for 43Gb/s ODB DWDM system at compatible 50 with 100GHz channel spacing than 1 bit delay time because of its higher Q value and bigger dispersion and nonlinearity tolerance.

Citation Download Citation

Shuai Wang, Xue Chen, Fangwei Fu, Weiqin Zhou, and Sheping Shi "A method for optimizing optical duobinary transmission systems", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71361B (11 November 2008); https://doi.org/10.1117/12.803379

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