International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2569

Full Length Research Paper

Comparative performance of Raman-SOA and Raman-EDFA hybrid optical amplifiers in DWDM transmission systems

V. Bobrovs, S. Olonkins, A. Alsevska, L. Gegere and G. Ivanovs
Institute of Telecommunications, Riga Technical University, Azenes Str. 12, RÄ«ga, LV-1048, Latvia.
Email: [email protected]

  •  Accepted: 22 October 2013
  •  Published: 23 October 2013

Abstract

To combine the benefits and compensate for the drawbacks of different optical amplifier types, a hybrid amplifier can be composed. The authors consider two most frequently used hybrid amplifiers that can provide better performance: a semiconductor optical amplifier (SOA), and an erbium doped fiber amplifier (EDFA), both in combination with a distributed Raman amplifier (DRA). To compare performance of the hybrid amplifiers, the eye diagrams of detected signals were analyzed and the maximum transmission distances were found. The results obtained show that even under the conditions advantageous for a SOA-DRA hybrid, the EDFA-DRA combination will produce less distortions of the amplified signal.

Key words: Dense wavelength division multiplexing, hybrid amplifier, semiconductor optical amplifier.

Abbreviation

Dense wavelength division multiplexing, DWDM; hybrid amplifier, HA; semiconductor optical amplifier, SOA; erbium-doped fiber amplifier, EDFA; distributed Raman amplifier DRA; nonlinear optical effects, NOEs; amplified spontaneous emission, ASE.

Copyright © 2024 Author(s) retain the copyright of this article.

This article is published under the terms of the Creative Commons Attribution License 4.0

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