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[1]P. C. Becker, N. A. Olsson, and J. R. Simpson. ¡°Erbium-Doped Fiber Amplifiers: Fundamentals and Technology¡±. Optics and Photonics, 1999.
[2]P. Mylinski, D. Nguyen, and J. Chrostowski.¡±Effects of concentration quenching on the performance of erbium doped fiber amplifiers¡±. Journal of Lightwave technology, vol. 15, no 1, January 1997.
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