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Proceedings Paper

Transients control in Raman fiber amplifiers
Author(s): Marcio Freitas; Sidney Nascimento Givigi; Jackson Klein; Luiz C. Calmon; Ailson R. de Almeida
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Paper Abstract

Raman fiber amplifiers (RFA) have been used in optical transmission communication systems in recent years due to their advantages over Erbium-doped fiber amplifiers (EDFA). Recently, the analysis of RFAs dynamic response and transient’s control has become important in order to predict system response to channel add/drop(s) or cable cuts in optical systems, and to avoid impairments caused by the power transients. Fast signal power transients in the surviving channels are caused by the cross-gain saturation effect in RFA, and the slope of the gain saturation characteristics determines the steady-state surviving channel power excursion. We are presenting the modeling and analysis of power transients control using two different approaches: (1) Power transient control using a Pump control method for a single and multi-pump scheme, and (2) the gain clamping of RFAs. Both methods are analyzed in a single amplifier as well in a cascade of RFAs.

Paper Details

Date Published: 16 November 2004
PDF: 11 pages
Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); doi: 10.1117/12.567441
Show Author Affiliations
Marcio Freitas, Optiwave Corp. (Canada)
Univ. Federal do Espirito Santo (Brazil)
Sidney Nascimento Givigi, Optiwave Corp. (Canada)
Univ. Federal do Espirito Santo (Brazil)
Jackson Klein, Optiwave Corp. (Canada)
Luiz C. Calmon, Univ. Federal do Espirito Santo (Brazil)
Ailson R. de Almeida, Univ. Federal do Espirito Santo (Brazil)


Published in SPIE Proceedings Vol. 5579:
Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers
Donna Strickland; Trevor J. Hall; Stoyan Tanev; Xiaoyi Bao; Franko Kueppers; David V. Plant, Editor(s)

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