Title: Impact of FEC on different modulation formats in optical communication systems

Authors: Ajay K. Sharma, Amarpal Singh, Manisha

Addresses: Department of Computer Science and Engineering, Dr. B R Ambedkar National Institute of Technology, Jalandhar, Punjab, India. ' Department of Electronics and Communication Engineering, Beant College of Engineering and Technology, Gurdaspur, Punjab, 143521, India. ' Department of Electronics and Communication Engineering, DAV Institute of Engineering and Technology, Jalandhar, Punjab, India

Abstract: The desire for higher per-fibre transport capacities and at the same time, the drive for lower costs per end-to-end transmitted information bit has led to optically routed transmission systems with higher spectral efficiencies. Among other enabling techniques that are used for the purpose, optical modulation formats with the application of some forward error correction techniques have become key to the design of modern optical transmission systems. In this paper we have analysed the optical communication system to evaluate the performance of different modulation formats with or without applying forward error correction techniques.

Keywords: forward error correction; FEC; non-return-to-zero; NRZ; return-to-zero; RZ; chirped return-to-zero; CRZ; carrier suppressed return-to-zero; CSRZ; optical modulation formats; optical communication.

DOI: 10.1504/IJCNDS.2009.026614

International Journal of Communication Networks and Distributed Systems, 2009 Vol.3 No.1, pp.3 - 14

Published online: 21 Jun 2009 *

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