Impact of pumping configuration on all-fibered femtosecond chirped pulse amplification

Proceedings of SPIE(2008)

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摘要
We experimentally compared the co- and counter-propagative pumping scheme for the amplification of ultra-short optical pulses. According to Pumping direction we show that optical pulses with a duration of 75 fs and 100mW of average output power can be obtained for co-propagative pumping, while Pulse duration is never shorter than 400 fs for the counter-propagative case. We show that the impact of non-linear effects on pulse propagation is different for the two pumping configurations. We assume that Self Phase Modulation (SPM) is the main effect in the co-propagative case, whereas the impact of Stimulated Raman Scattering is bigger for the counter-propagative case.
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关键词
ultra-short optical pulses,fibre lasers,femtosecond Chirped Pulse Amplification,Self-Phase Modulation,Double-Clad Er/Yb doped fibre,chromatic dispersion,Stimulated Raman scattering,non-linear effects,femtosecond laser,dispersion shifted fibre
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