|TUP050||Extension of Existing Pulse Analysis Methods to High-Repetition Rate Operation: Studies of the "Time-Stretch Strategy"||483|
Funding: ANR (2010-042301, DYNACO), LABEX CEMPI project (ANR-11-LABX-0007), ERC grant COXINEL (340015), GENCI TGCC/IDRIS (x2014057057,i2015057057).
Many single-shot recording setups are based on the encoding of the information onto a laser pulse. This concerns in particular electro-optic sampling of bunch shapes, and VUV/X pulse monitors using transient reflectivity. The upgrade of these methods to high repetition rates presents challenging issues, that are due to the limited speed of the recording cameras. Recently , we demonstrated that multi-MHz repetition rates can be achieved using a relatively simple upgrade of existing setups, using the so-called "photonic time-stretch" technique. Here we present guidelines for the practical realization in the case of electro-optic sampling. We also present a performance analysis, and compare it to the spectral encoding case. The technique is potentially applicable to other cases where the information can be encoded on a chirped laser pulse, as, e.g., transient reflectivity diagnostics of XUV pulses.
 Observing microscopic structures of a relativistic object using a time-stretch strategy, E. Roussel, C. Evain, M. Le Parquier, C. Szwaj, S. Bielawski, L. Manceron, J.-B. Brubach, M.-A. Tordeux, J.-P. Ricaud, L. Cassinari, M. Labat, M.-E Couprie, and P. Roy, Scientific Reports 5, 10330 (2015).
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