Efficient tools for erbium doped fiber amplifiers (EDFA) design: an experimental and theoretical analysis

Emmanuel Jaunart; P. Crahay; Bernard Heens

doi:10.1117/12.201974

22 February 1995 Efficient tools for erbium-doped fiber amplifier (EDFA) design: an experimental and theoretical analysis

Emmanuel Jaunart, P. Crahay, Bernard Heens

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Proceedings Volume 2449, Fiber Optic Network Components; (1995) https://doi.org/10.1117/12.201974
Event: Advanced Networks and Services, 1995, Amsterdam, Netherlands

Abstract

In many amplification regimes, the EDFA gain is saturated by noise. The accurate computation of noise spectra is then necessary to predict the EDFA exact gain and noise characteristics. This is done by solving the rates equations (ordinary differential equations, ODE) describing the noise spectra. The first way to optimize the EDFA modeling tool is the noise spectrum discretization. Such a method is detailed in this paper. Another interesting approach has been given by E. Desurvire. One ordinary differential equation (ODE) describes the whole noise spectrum in one direction. This is the usual concept of noise effective bandwidth (NEB). The NEB definition we use has been modified in order to take into account the spatial distribution of the light power in the active fiber section and the population inversion. The NEB method we propose uses 1, 2, or 4 NEBs, leading to small computation times (approximately equals 4 s). The experimental set-up allowing the determination of the input parameters is also detailed. The predictions provided by one modified NEB are at least better than the results obtained with 4 standard NEBs, as defined by E. Desurvire. The computations fairly agree with experimental results: the larger discrepancy is lower than 0.7 dB. Prototype performances are discussed.

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Emmanuel Jaunart, P. Crahay, and Bernard Heens "Efficient tools for erbium-doped fiber amplifier (EDFA) design: an experimental and theoretical analysis", Proc. SPIE 2449, Fiber Optic Network Components, (22 February 1995); https://doi.org/10.1117/12.201974

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KEYWORDS

Optical amplifiers

Luminescence

Interference (communication)

Ordinary differential equations

Absorption

Adaptive optics

Modeling

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