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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 11    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 11, November 2011
Different Pump Configurations for Discrete Raman Amplifier
Full Text(PDF, 3000)  PP.  
Author(s)
Arwa H. Beshr, Moustafa H. Aly and A.K. AboulSeoud
KEYWORDS
Discrete Raman Amplifier (DRA), Net Raman Amplifier Gain, Bidirectional Pumping, Counter pumping
ABSTRACT
In a discrete Raman fiber amplifier, the gain depends strongly on the difference between the pump and signal wave lengths. One of the major attractive characteristics of Raman amplification is that, it can be used over a very wide wavelength range by multiplexing different wavelengths together. This paper describes the net gain of the discrete Raman amplifier (DRA) as a function of the fiber length at different pump configurations: forward pumping (co-pumping), backward pumping (counter-pumping) and bidirectional pumping. Also, input pump power as function of span length is presented. The signal and pump wavelengths are, respectively, 1550 nm and 1450 nm
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