Characterization and optimization of a multiterawatt CPA laser system using SPIDER

J. Wemans; Goncalo N. Figueira; N. C. Lopes; L. Cardoso; J. Tito Mendonca

doi:10.1117/12.611215

23 March 2005 Characterization and optimization of a multiterawatt CPA laser system using SPIDER

J. Wemans, Goncalo N. Figueira, N. C. Lopes, L. Cardoso, J. Tito Mendonca

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611215
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

We present a device for spectral phase pulse diagnosis assembled to optimize and control pulse compression in our chirped pulse amplification (CPA) laser system at Laboratorio de Lasers Intensos (L²I). The device uses the spectral interferometry for direct electric-field reconstruction (SPIDER) technique and, together with a pulse spectral intensity acquisition, allows the complete temporal and spectral characterization of the pulses. Using the device and our own real-time software we successfully optimized the compression and characterized the final terawatt pulses. We also describe here a new simple interferometric method to directly measure a calibration constant of the SPIDER setup and control the temporal overlapping of the two replicas and chirped pulse in SPIDER. A study is presented that allows the measure of chirps in pulses far above the normally accepted dispersion limit of a SPIDER diagnosis.

Citation Download Citation

J. Wemans, Goncalo N. Figueira, N. C. Lopes, L. Cardoso, and J. Tito Mendonca "Characterization and optimization of a multiterawatt CPA laser system using SPIDER", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611215

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