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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  
Author(s)
Ricky Anthony, Sambhunath Biswas
KEYWORDS
— Erbium doped fiber amplifier, Bowtie polarization maintaining fiber, Giles model, McCumber’s equations, C-band, Gain flattening, Noise figure, Equalization filter.
ABSTRACT
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.
References
[1] J. B. Rosolem, A. A. Juriollo and M .A. Romero, “S Band EDFA Using Standard Erbium Doped Fiber,” Electronics Letters Oct. Vol. 43 No. 22, (2007).

[2] S. A. Daud et. Al, “An Experimental Study on S-band Depressed Cladding EDFA”, proc. IEEE National Conference on Telecommunication Technologies (2008).

[3] A.Sano et.al “Ultra-High Capacity WDM Transmission Using Spectrally-Efficient PDM 16-QAM Modulation and C- and Extended LBand Wideband Optical Amplification," J. Lightwave Technol. 29, p.p.578-586 (2011).

[4] M. Tilsch, C.A. Hulse, K.D. Hendrix, R.B. Sargent, "Design and demonstration of a thin-film based gain equalization filter for C-band EDFAs", proc. NFOEC conference.

[5] B. Nagaraju, Pratima Jiaswal, R.K.Varshney, B.P.Pak, “Aninherently gain flattened EDFA design based on asymmetric twin core fiber,” ICOP-International Conference on Opticas and Photonics, Chandigarh, India, 2009.

[6] R.D Birch et.al., “Fabrication of polarization maintain fibers using gas-phase etching”, Electronics Letters, 18(24), p.p.1036-1038 (1982).

[7] C.R.Giles and E.Desurvire,” Modeling of erbium doped fiber amplifiers”, J.Lightwave Tech. 9 (2), 271 (1991).

[8] Y.Tteyam et.al, “Correlation between the basicity and optical property of Er3+ ion in oxide glasses”, Materials Science and Technology, Vol.1 (2006).

[9] Alan E. Willner, S.M.Hwang,” Transmission of many WDM channels through a cascade of EDFA’s in Long-Distance links and ring netNetworks”, Journal of Lightwave Techn., Vol.13, No.5 (1995).

[10] V.Sinivasagam, K.Dimyati, R.D.Singh and A.Mustafa, “C-Plus Lband EDFA with over 70nm operating range”, IEEE TENCON (2004).

[11] S.K.liaw et.al., “Investigate C+L band EDFA/Raman Amplifiers by using the same pump lasers”, Proc. Of IEEE JCIS (2006).

[12] D.McCumber,” Theory of phonoterminated optical masers,” Phys. Rev.,vol.134, p.p. A299-A306 (1964).

[13] W.J.Lee et.al.,” Simulation for the effect of cascaded Gain temperature fluctuations”, IEEE CLEOY (1999)

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