Transient Response and Control of Pump-Reflecting Raman Fiber Amplifiers

This article analyzes the transient effect in pump-reflecting Raman fiber amplifiers. In order to better understand the impact of reflecting the unused pump power in the amplifier behavior, several scenarios are investigated. Results show that this pumping scheme has a worse response to dynamic chan...

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Bibliographic Details
Published in:Fiber and integrated optics 2010-01, Vol.29 (1), p.44-61
Main Authors: Ferreira, João M., Fugihara, Meire C., Pinto, Armando Nolasco
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Amplifiers
Applied sciences
Channels
Circuit properties
Dynamical systems
Dynamics
Electric noise
Electric power
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber optics
Fibers
Information, signal and communications theory
Integrated optics. Optical fibers and wave guides
Lasers
Mathematical models
Multiplexing
Optical and optoelectronic circuits
optical communications
Optical fiber communications
Optical fibers
Optical pumping
Optical telecommunications
Raman amplification
Receivers & amplifiers
Signal and communications theory
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transient responses
Wave division multiplexing
wavelength division multiplexing
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Summary:This article analyzes the transient effect in pump-reflecting Raman fiber amplifiers. In order to better understand the impact of reflecting the unused pump power in the amplifier behavior, several scenarios are investigated. Results show that this pumping scheme has a worse response to dynamic channel add/drop. However, a pump-controlled gain-locked system is proposed that is able to mitigate the amplifier transient response. Following this approach, an efficient low-cost Raman fiber amplifier suitable for dynamic optical networks is obtained.
ISSN:0146-8030
1096-4681
DOI:10.1080/01468030903452977