Temporal pulse division in hollow fiber compressors

Abstract : We propose a detailed analysis of a temporal multiplexing technique suited to the post-compression of energetic femtosecond laser pulses in gas-filled hollow-core fibers down to the few-cycle regime. Twofold temporal division and combination are achieved using two birefringent plates with specific crystallographic orientation. We demonstrate a simple interferometric method for measuring the relative spectral phase between two replicas, which gives a measure of the phase mismatch in the combining plate, as well as that induced by eventual cross-phase modulation or ionization during propagation in the fiber. We present the experimental conditions required for producing few-cycle pulses with high fidelity. This passive combination technique will aid the energy scaling of hollow fiber compressors to the multi-millijoule level. (C) 2015 Optical Society of America
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Journal articles
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Submitted on : Thursday, November 17, 2016 - 2:15:10 PM
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Hermance Jacqmin, Aurélie Jullien, Brigitte Mercier, Rodrigo Lopez-Martens. Temporal pulse division in hollow fiber compressors. Journal of the Optical Society of America B, Optical Society of America, 2015, 32 (9), ⟨10.1364/JOSAB.32.001901⟩. ⟨hal-01398559⟩

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