Transients control in Raman fiber amplifiers

Marcio Freitas; Sidney Nascimento Givigi Jr.; Jackson Klein; Luiz C. Calmon; Ailson R. de Almeida

doi:10.1117/12.567441

16 November 2004 Transients control in Raman fiber amplifiers

Marcio Freitas, Sidney Nascimento Givigi Jr., Jackson Klein, Luiz C. Calmon, Ailson R. de Almeida

Proceedings Volume 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers; (2004) https://doi.org/10.1117/12.567441
Event: Photonics North, 2004, Ottawa, Ontario, Canada

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.

Citation Download Citation

Marcio Freitas, Sidney Nascimento Givigi Jr., Jackson Klein, Luiz C. Calmon, and Ailson R. de Almeida "Transients control in Raman fiber amplifiers", Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); https://doi.org/10.1117/12.567441

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