Highly efficient temporal cleaner for femtosecond pulses based on cross-polarized wave generation in a dual crystal scheme

Abstract : We present an experimental demonstration of a renewed set up, with respect to the one described in [A. Jullien et al, Opt. Lett. 30, 920 (2005)], that enables more reliable and robust performances in the increase of the contrast ratio (CR) of energetic femtosecond pulses. The new approach is based on the use of two successive crystals situated at optimum position that generate cross polarized waves whose individual effect interferes constructively. This arrangement overcomes the limitation of the single crystal schemes for temporal cleaning – the early saturation of the transmission efficiency, previously observed when either using a relatively thick crystal or increasing intensities up to its damage threshold. A theoretical model that predicts the output CR is developed for the first time. It shows that the CR depends on the initial CR and the extinction ratio of the polarizers used. The measured temporal CR 10^-10 is in accordance with theoretical predictions.
Document type :
Journal articles
Complete list of metadatas

https://hal-polytechnique.archives-ouvertes.fr/hal-00554022
Contributor : Thuy Le <>
Submitted on : Monday, January 10, 2011 - 1:09:05 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

Links full text

Identifiers

Collections

Citation

A. Jullien, Stoyan Kourtev, Olivier Albert, Gilles Cheriaux, Jean Etchepare, et al.. Highly efficient temporal cleaner for femtosecond pulses based on cross-polarized wave generation in a dual crystal scheme. Applied Physics B - Laser and Optics, Springer Verlag, 2006, 84 (3), pp.409-414. ⟨10.1007/s00340-006-2334-7⟩. ⟨hal-00554022⟩

Share

Metrics

Record views

233