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8 September 2006 Accurate modeling and experimental validation of a singlemode 4 W output power double cladding erbium ytterbium fibre amplifier
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Proceedings Volume 6343, Photonics North 2006; 63430L (2006)
Event: Photonics North 2006, 2006, Quebec City, Canada
We developed a model that accurately predicts the performances of high power double cladding erbium ytterbium fibre amplifiers. We experimentally validate the model in co- and counter-propagation configuration for different pump wavelengths and fibre lengths. By adjusting the ytterbium to erbium cross-relaxation rate with a simple amplifier experiment, we obtained a complete agreement between the model predictions and the experimental data regarding the output signal. We measured that the McCumber relationship considerably overestimates the ytterbium emission crosssection; with a correction of this parameter, we obtained an excellent prediction of the ytterbium spontaneous emission at 1.0 μm. The model is valid for high power singlemode amplifiers as we obtained a full agreement for a 4W output power amplifier from a seed signal of 8 mW at 1556nm. The output was diffraction limited with a measured M2 parameter of 1.03 without doing any mode selection from a slightly multimode fibre with a core diameter of 10 μm and a numerical aperture of 0.18.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bertrand Morasse, Carl Hovington, Stéphane Chatigny, and Michel Piché "Accurate modeling and experimental validation of a singlemode 4 W output power double cladding erbium ytterbium fibre amplifier", Proc. SPIE 6343, Photonics North 2006, 63430L (8 September 2006);


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