I don't mean to go into too much gory physics detail on a trivia forum, but I do like to talk about physics, so here I am ...
00Saucer, I'm not sure what you mean by "computational power in beam laser"; a laser is not a computational tool, although you can arrange things so that it carries information. Photonics and quantum optics are big news these days and some quantum cryptography (which uses both fields) devices are currently on the market; you can find a good layman-level introduction in last January's issue of Scientific American. (Please forgive me, I don't know your educational background so I don't know if you would appreciate more technical journals ... if you would, then there are always articles in Physical Review A or the various optical-society journals.)
To my knowledge (admittedly incomplete) useful X-ray lasers have not yet been achieved, although advances in synchrotrons and linear accelerators are viewed with high hopes (Cornell University has its sights on constructing an X-ray laser beginning around 2008, I think.) There are many synchrotron sources around the world that produce intense X-ray beams, but I don't think any of them meet the technical requirements of a laser source (which has very special properties). The main problem is that regular optics (mirrors, lenses, etc) don't work well with X-ray light, as glass is largely opaque in the X-ray range.
If you don't have access to Scientific American, Nature, or any of the technical journals, you can probably find some information on the websites of major university physics departments. You can find the homepages of professors and groups who work in quantum optics, and they'll generally have descriptions of their research (sometimes on a very accessible level). They'll also often post copies of recently published research papers.
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