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a) Cleaved coupling section of a bent waveguide bus and a resonator; b&c) Delay line consisting of several ring resonators
Researchers have effectively delayed light's travel for the purpose of chips

IBM has announced that its researchers have built a device capable of delaying the flow of light on a silicon chip, which could lead the further development of using light instead of electricity to transfer data. Researchers have known that the use of optical instead of electrical signals for transferring data within a computer chip might result in significant performance enhancements since light signals can carry more information faster. The engineering challenge is buffering data on the chip, which is difficult given light’s speed. Thus, a means of using light effectively is to delay its travel.

Long delays can be achieved by passing light through optical fibers. IBM scientists were able to delay light by passing it through a new form of silicon-based optical delay line built of up to 100 cascaded "micro-ring resonators," built using current silicon complementary metal-oxide-semiconductor (CMOS) fabrication tools. When the optical waveguide is curved to form a ring, light is forced to circle multiple times, delaying its travel. The optical buffer device based on this simple concept can briefly store 10 bits of optical information within an area of 0.03 square millimeters. This advancement could potentially lead to integrating hundreds of these devices on one computer chip, an important step towards on-chip optical communications.

"Today's more powerful microprocessors are capable of performing much more work if we can only find a way to increase the flow of information within a computer," said Dr. T.C. Chen, vice president of Science and Technology for IBM Research. "As more and more data is capable of being processed on a chip, we believe optical communications is the way to eliminate these bottlenecks. As a result, the focus in high-performance computing is shifting from improvements in computation to those in communication within the system."

The report on this work, "Ultra-compact optical buffers on a silicon chip," is published in the premiere issue of the journal Nature Photonics. This work was partially supported by the Defense Advanced Research Projects Agency (DARPA) through the Defense Sciences Office program "Slowing, Storing and Processing Light."

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RE: There is more to this than meets the eye
By nurbsenvi on 12/28/2006 8:30:54 AM , Rating: 3
In late 07 and beginning of 08 laser Television. Material that can bend light giving the illusion of invisibility. Controlling the Speed of Light and its density.

summing up all the clues you leaked here I came to a very important conclusion...

mmm...I want donuts....

just kidding

The real answer is:

In 10 years we will be watching a laser TV on a couch, while wareing an invisible suit, through a scope that delays and darkens your vision... so when your wife comes in to the house she wouldn't know if you are there the only thing she will notice is a scope that floats in thin air and a TV that's on while no one is watching.

you haven't said a jack there mate... just spill the bean like The inquirer.

RE: There is more to this than meets the eye
By Nyne on 12/28/2006 9:15:01 AM , Rating: 2
This is stupid of me and I could get fired but I will let dailytech and you guys know.

We are currently working on a project were we take a cube of light bending material and our experimenting on laser guided paths that will result in a 3rd dementional television. The rusult looks like that of star wars chess for now or like the computer holograms on halo. We belive one day it would be possible with light slowing technology to design something like that of star trek's holodeck however our research team is currently on that. You should have 3d tv as soon as late 09 mostly for gaming though because we can easily make a 3d animation 3d. we are also experimenting on 2d-3d for games and stuff but right now anything 2d is desplayed like a rear projector on a clear screen. It will be amazing and hopefully by twenty o nine we will have the price down to 3 or 4 thousand.

By nurbsenvi on 12/28/2006 9:41:10 AM , Rating: 2
Thanks for sharing that info
very generous and brave of you.

now where did I put the phone number for the US patent office...

Well I think that the technology is good but I can't think of it as a domestic application but more of military or 3D CAD modeling application maybe? Industrial design will benefit quite alot I think.

but it will be cool to have musicals like the Cat's played out on 300inch 3D holographic projector in your house.

By Ringold on 12/29/2006 4:12:50 AM , Rating: 2
As a Star Wars geek.. for 3-4 grand, in "late 09" dollars, assuming I don't find myself unemployed or set back, I think I would pick me up one of these boondoggles. It'd make for an interesting piece! It could do that SW game, or it could do that game at the Battle School from the book Ender's Game, or could play chess.

Or, of course, would probably do a fine job of looping a scene of a woman poll dancing. I'll save that app for when the 'guys' come over.

I'd love the holodeck thing if not for the whole not being able to touch anything. Unless, of course, you've really got some brilliant guys and figured out how replicators work, too.

By gibletsqueezer on 12/29/2006 5:35:23 AM , Rating: 2
3D displays for games by 2009 eh? Gee - these guys (plus countless others) must be ahead of the curve -

But - keep up the holodeck work, just don't let your mother see what your doing, she just might stop you playing with your light saber

By cocoman on 1/19/2007 11:27:39 AM , Rating: 2
Read the best of CES 2007 in anandtech. They already have your 3D TV working in the show.

"I modded down, down, down, and the flames went higher." -- Sven Olsen

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