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An approach to analyze quantitavily pump-pump interaction in Raman amplifiers

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4 Author(s)
Belisario, P.H.S. ; Electr. Eng. Dept., Inst. Mil. de Eng., IME, Rio de Janeiro, Brazil ; Giraldi, M.T.M.R. ; de Farias, R.F.R. ; Martinez, M.A.G.

We report a simple and straightforward approach to analyze quantitatively pump-pump interaction contribution to wide-band Raman amplifier gain profile. The approach is based in the numerical solution of Raman amplification equations. The on-off gain difference in the presence and absence of pump-pump interaction depicts a degree of odd symmetry in gain profile around the center of the amplification band. Additionally, the approach evidences a pump power threshold level where pump-pump interaction plays a relevant role in gain profile. The approach is demonstrated for modern low loss fibers under three and two pump excitation.

Published in:

Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International

Date of Conference:

3-6 Nov. 2009