Using Low-Density Parity-Check Codes to Reduce the Effect of Laser Line width For Optical Communication

Authors

  • R. S. Fyath Department of Computer Engineering, College of Engineering, Nahrain University, Baghdad-Iraq
  • Hussam A. Darweesh Department of Computer Engineering and Information Technology, University of Technology

Keywords:

Laser Line width, Low-Density Parity-Check

Abstract

The performance of coherent optical communication systems is degraded significantly by the phase noise of the semiconductor lasers. The phase noise is induced by spontaneous emission in the laser cavity and yields broadening in the laser linewidth. This paper addresses the application of the Low-Density

Parity-Check (LDPC) codes as Forward Error Correcting (FEC) codes to relax the laser linewidth requirement. These codes are applied to three types of heterodyne optical receivers (BPSK, DPSK and QPSK) operating with finite laser linewidths

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Published

26-03-2011

Issue

Vol. 14 No. 1 (2011): Al-Nahrain University, College of Engineering Journal (NUCEJ)

Section

Articles

License

The authors retain the copyright of their manuscript by submitting the work to this journal, and all open access articles are distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC-BY-NC 4.0), which permits use for any non-commercial purpose, distribution, and reproduction in any medium, provided that the original work is properly cited.

How to Cite

[1]
R. S. Fyath and H. A. Darweesh, “Using Low-Density Parity-Check Codes to Reduce the Effect of Laser Line width For Optical Communication”, NJES, vol. 14, no. 1, pp. 67–79, Mar. 2011, Accessed: Nov. 24, 2024. [Online]. Available: https://nahje.com/index.php/main/article/view/603