Characterization and modeling of amplified spontaneous emission in unsaturated erbium-doped fiber amplifiers

Desurvire, E.,Zirngibl, M.,Presby, H.M.,DiGiovanni, D.

Photonics Technology Letters, IEEE（1991）

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摘要

The generation of amplified spontaneous emission (ASE) in erbium-doped fiber amplifiers is characterized. A theoretical model leading to closed-form analytical expressions for the backward and forward ASE power spectra is developed for the unsaturated gain regime. The results are found to be in close agreement with the measured experimental data. Such closed-form expressions are useful to model ASE noise in low-gain, distributed fiber amplifiers.

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关键词

erbium,fibre lasers,laser theory,optical saturation,superradiance,amplified spontaneous emission,backward ASE power spectra,closed-form analytical expressions,forward ASE power spectra,spectral distributions,unsaturated Er-doped fibre amplifiers,unsaturated gain regime

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