>AUSTIN, Texas-The Texas Petawatt laser reached greater than one petawatt
>of laser power on Monday morning, March 31, making it the highest powered
>laser in the world, Todd Ditmire, a physicist at The University of Texas
>at Austin, said.

Ah, so they have caught up to the one in the building next to me, that has 
been operating for a while now (a couple of years at least).

See http://www.scitech.ac.uk/ResFac/Largefac/lasers.aspx under 'Vulcan'. The 
'Astra Gemini', which is also here, has two half petawatt beams that can be 
combined apparently. 

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