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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 4    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 4,April 2012
Gain Flattening and Noise Figure Analysis of a Dual Stage Bowtie WDM EDFA Configuration in C-Band
Full Text(PDF, )  PP.236-242  
Ricky Anthony, Sambhunath Biswas
— Erbium doped fiber amplifier, Bowtie polarization maintaining fiber, Giles model, McCumber’s equations, C-band, Gain flattening, Noise figure, Equalization filter.
The paper presents an improved gain flattening and noise figure analysis in the C-band regime using an equalization filter of a dual stage single mode polarization maintaining bowtie erbium doped fiber amplifier. The configuration uses two in-line 980nm laser pumps. The gain and noise figure variation with fiber length, pump power and temperature of the system for C-band communication have been investigated. With equalization filter, a gain and noise figure flatness (p-p) of just 1.1dB and 2.3dB respectively, in 1530-1565 nm BW, for optimized 150 mW and 250 mW pump lasers was obtained. The gain has also shown temperature dependent variation, with minimum fluctuation of 0.71dB at 200C. Based on results, the system feasibility as in C-band communication has been discussed.
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