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Persistent URL http://purl.org/net/epubs/work/52577
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Record Id 52577
Title High-spatiotemporal-quality petawatt-class laser system
Abstract We have developed a femtosecond high-intensity laser system that combines both Ti:sapphire chirped-pulse amplification (CPA) and optical parametric CPA (OPCPA) techniques and produces more than 30 J broadband output energy, indicating the potential for achieving peak powers in excess of 500TW. With a cleaned high-energy seeded OPCPA preamplifier as a front end in the system, for the compressed pulse without pumping the final amplifier, we found that the temporal contrast in this system exceeds 10e10 on the subnanosecond time scales, and is near 10e12 on the nanosecond time scale prior to the peak of the main femtosecond pulse. Using diffractive optical elements for beam homogenization of a 100 J level high-energy Nd:glass green pump laser in a Ti:sapphire final amplifier, we have successfully generated broadband high-energy output with a near-perfect top-hat-like intensity distribution.
Organisation CLF , CLF-HPL , CLF-ASTRA , STFC
Keywords Physics , Laser amplifiers , Ultrafast technology , Parametric oscillators and amplifiers , Ultrafast lasers , Optical amplifiers
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Appl Optics 49, no. 11 (2010): 2105-2115. doi:10.1364/AO.49.002105 DD00C74E-BDB9-137…29FF6CF32_197073.pdf 2010