Comparison of different wavelength pump sources for Tm subnanosecond amplifier

Andras Cserteg; Sébastien Guillemet; Yves Hernandez; Domenico Giannone

doi:10.1117/12.922321

8 May 2012 Comparison of different wavelength pump sources for Tm subnanosecond amplifier

Andras Cserteg, Sébastien Guillemet, Yves Hernandez, Domenico Giannone

Proceedings Volume 8433, Laser Sources and Applications; 843304 (2012) https://doi.org/10.1117/12.922321
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We report here a comparison of different pumping wavelengths for short pulse Thulium fibre amplifiers. We compare the results in terms of efficiency and required fibre length. As we operate the laser in the sub-nanosecond regime, the fibre length is a critical parameter regarding non linear effects. With 793 nm clad-pumping, a 4 m long active fibre was necessary, leading to strong spectral deformation through Self Phase Modulation (SPM). Core-pumping scheme was then more in-depth investigated with several wavelengths tested. Good results with Erbium and Raman shifted pumping sources were obtained, with very short fibre length, aiming to reach a few micro-joules per pulse without (or with limited) SPM.

Citation Download Citation

Andras Cserteg, Sébastien Guillemet, Yves Hernandez, and Domenico Giannone "Comparison of different wavelength pump sources for Tm subnanosecond amplifier", Proc. SPIE 8433, Laser Sources and Applications, 843304 (8 May 2012); https://doi.org/10.1117/12.922321

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