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  • Received: Jan. 15, 2004

    Accepted: --

    Posted: Jun. 6, 2006

    Published Online: Jun. 6, 2006

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    Jianhua Chang, Mingde Zhang, Xiaohan Sun. An improved calculation method for fiber Raman amplifier equations with multi-wavelength pumping[J]. Chinese Optics Letters, 2004, 2(8): 441

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Chinese Optics Letters, Vol. 2, Issue 8, 441 (2004)

An improved calculation method for fiber Raman amplifier equations with multi-wavelength pumping

Jianhua Chang, Mingde Zhang, and Xiaohan Sun

Author Affiliations

  • Department of Electronic Engineering, Southeast University, Nanjing 210096

Abstract

A novel numerical method for fiber Raman amplifier (FRA) from standard propagation equations is presented and derived based on the one-step method for ordinary differential equation (ODE). The proposed algorithm is effective in solving FRA equations including all the interactions among pumps, signals, and noises. Applications of the numerical analysis to practical FRA-based systems show a great reduction in computation time in comparison with the average power method and the fourth-order Runge-Kutta (RK) method, under the same condition. Also the proposed method can decrease the computing time over three orders of magnitude with excellent accuracy promises in comparison with the direct integration method.

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