Repetitive petawatt-class laser with near-diffraction-limited focal spot and transform-limited pulse duration

Cheng Liu; Sudeep Banerjee; Jun Zhang; Shouyuan Chen; Kevin Brown; Jared Mills; Nathan Powers; Baozhen Zhao; Gregory Golovin; Isaac Ghebregziabher; Donald Umstadter

doi:10.1117/12.2005008

6 March 2013 Repetitive petawatt-class laser with near-diffraction-limited focal spot and transform-limited pulse duration

Cheng Liu, Sudeep Banerjee, Jun Zhang, Shouyuan Chen, Kevin Brown, Jared Mills, Nathan Powers, Baozhen Zhao, Gregory Golovin, Isaac Ghebregziabher, Donald Umstadter

Author Affiliations +

Proceedings Volume 8599, Solid State Lasers XXII: Technology and Devices; 859919 (2013) https://doi.org/10.1117/12.2005008
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

A repetitive petawatt-class Ti:sapphire laser system operating with high spatial and temporal beam quality is demonstrated. Maximum pulse energy of 30 J is obtained via five multi-pass amplification stages. Closed-loop feedback control systems in the temporal and spatial domains are used to yield Fourier-transform-limited pulse duration (33.7 fs), and diffraction-limited focal spot sizes (with several different tight focusing optics). The laser parameters have been fully characterized at high-power, and are monitored in real-time, to ensure that they meet the experimental requirements for laser-wakefield electron acceleration and x-ray generation.

Citation Download Citation

Cheng Liu, Sudeep Banerjee, Jun Zhang, Shouyuan Chen, Kevin Brown, Jared Mills, Nathan Powers, Baozhen Zhao, Gregory Golovin, Isaac Ghebregziabher, and Donald Umstadter "Repetitive petawatt-class laser with near-diffraction-limited focal spot and transform-limited pulse duration", Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 859919 (6 March 2013); https://doi.org/10.1117/12.2005008

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