ElaKiri Community
Downloads
Go Back   ElaKiri Community > General > News
Reload this Page IBM Slows Light: Announces Major Milestone for Optical Computing
Reply
 
Thread Tools
(#1)
Old
Anusha's Avatar
Anusha Anusha is offline
Senior Member
Anusha is on a distinguished road
 
Posts: 25,865
Join Date: Jun 2006
Location: Japan
IBM Slows Light: Announces Major Milestone for Optical Computing - 12-28-2006, 05:28 AM

Souce: Dailytech

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.


a) Cleaved coupling section of a bent waveguide bus and a resonator; b&c) Delay line consisting of several ring resonators

"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."
Reply With Quote
(#2)
Old
Novindu's Avatar
Novindu Novindu is offline
Senior Member
Novindu will become famous soon enough
 
Posts: 21,985
Join Date: Jun 2006
Location: u nwa kno.......
Send a message via MSN to Novindu Send a message via Yahoo to Novindu
12-28-2006, 07:09 AM

thx for da info machooo
Reply With Quote
(#3)
Old
Anusha's Avatar
Anusha Anusha is offline
Senior Member
Anusha is on a distinguished road
 
Posts: 25,865
Join Date: Jun 2006
Location: Japan
12-29-2006, 05:41 PM

IBM's rate of application of technology to practice is not that great. I heard when I was doing A/Ls that IBM had developed a transistor which can work at 10GHz or more speeds. Hmmm...why the hell haven't we heard about that after that news
Reply With Quote
(#4)
Old
amila325's Avatar
amila325 amila325 is offline
Senior Member
amila325 will become famous soon enoughamila325 will become famous soon enough
 
Posts: 9,196
Join Date: Jul 2006
12-31-2006, 09:39 AM

wow thanx for the info man ela ela
Reply With Quote
(#5)
Old
seong619's Avatar
seong619 seong619 is offline
Senior Member
seong619 is an unknown quantity at this point
 
Posts: 942
Join Date: Aug 2006
Location: Rajagiriya
Send a message via MSN to seong619
12-31-2006, 09:41 AM

Damn! Reali?!

That's amazing! Thanks!
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Light In Your Eyes kasunsankalpana New Music 1 01-19-2008 07:50 AM
Turn Off The Light kasunsankalpana New Music 1 10-22-2007 09:06 PM
How Lasers Work Mihindu_Gajaba ElaKiri Talk! 4 07-24-2007 11:27 PM



Copyright © 2006 - 2011 ElaKiri™ Beta2.Evo vBulletin, vBa iBproArcade Subdreamer I-Magic MKv
Optimisation plugin by DBtech

Page generated in 0.07062 seconds with 11 queries