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9 March 2016 Unstable multipulsing can be invisible to some ultrashort pulse measurement techniques
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Multiple pulsing is a feature of most mode-locked ultrafast laser systems at very high pump powers, and slight variations in the pump power around certain regimes can cause sinusoidally-varying or even chaotic separations among pulses. The impact of this type of unstable multipulsing on modern pulse measurement methods has not been studied. We have performed calculations and simulations and find that allowing only the relative phase of a satellite pulse to vary causes the satellite to wash out of the SPIDER measurement completely. Although techniques like FROG and autocorrelation cannot accurately determine the precise properties of satellite pulses, they do succeed in seeing them.
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Michelle Rhodes, Zhe Guang, and Rick Trebino "Unstable multipulsing can be invisible to some ultrashort pulse measurement techniques", Proc. SPIE 9732, Real-time Measurements, Rogue Events, and Emerging Applications, 97320R (9 March 2016);

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