IBM Develops Nanophotonic Switch
March 18, 2008 1:07 PM
comment(s) - last by
A visual representation of a CPU using nanophotonic switches to direct light speed traffic between cores on a chip.
IBM continues push towards light speed computing
In 2005 International Business Machines demonstrated silicon nanophotonic devices that
slowed down light
via clever reflecting methods. Then in 2006 it showed how a similar device could be used to buffer a full byte of information in stored optical pulses, a necessity for optical computing.
In December 2007, researchers demonstrated a silicon device that transformed energy from electronic impulses from a processor into light pulses -- the pulses in the 2005 and 2006 developments were manually triggered.
Now, IBM has made another
significant research breakthrough
in its quest to achieve optical computing. Researchers at IBM have announced that they have developed the world's smallest nanophotonic switch. The tiny silicon device, measuring a mere hundredth of the size of a human hair, is an essential step towards creating "light transistors," that allow chips to process at the speed of light. Such chips could greatly outclass today's chips in performance and speed, as today's chips rely on slower electrical communication through copper wires.
Before such chips, though, an important stepping stone IBM sees is the use of its optical technologies in on chip networks. The optical devices could be put to use as a bus between cores in
IBM's next generation Cell processors
or other multicore systems.
Yurii Vlasov, manager of silicon nanophotonics at IBM’s TJ Watson Research Center states, "
This new development is a critical addition in the quest to build an on-chip optical network."
IBM's partially DARPA-funded research is published in the April 2008 journal
, titled "
High-throughput silicon nanophotonic wavelength-insensitive switch for on-chip optical networks."
The switch takes light converted by IBM's other devices from electrical signals and can direct it along multiple routes. This will eventually allow on-chip optical interconnects. IBM states that the device fulfills several key criteria making it ideal for use on-chip. First, they state, it is extremely compact. Secondly, it can process multiple wavelengths of light (known as colors in the visible spectra). This means that with each wavelength transmitting data at up to 40 Gb/s, the aggregated bandwidth can exceed 1 Tb/s.
IBM has shown the device is tolerant to heat. This is an essential characteristic for successful on-chip deployment as modern processors develop "hot spots" which migrate around, based on changing loading conditions.
This article is over a month old, voting and posting comments is disabled
Light speed is too slow
3/18/2008 2:53:20 PM
We're going to have to go right to...ludicrous speed.
RE: Light speed is too slow
3/18/2008 4:41:53 PM
what the hell was that...it's IBM sir...they've gone plad
"People Don't Respect Confidentiality in This Industry" -- Sony Computer Entertainment of America President and CEO Jack Tretton
IBM Shrinks Cell/B.E. to 45nm Process
February 7, 2008, 6:41 PM
IBM Slows Light: Announces Major Milestone for Optical Computing
December 25, 2006, 7:37 AM
Lenovo to Complete $2.1B Acquisition of IBM's x86 Server Operations on October 1
September 29, 2014, 3:19 PM
ZOTAC Announces Diminutive ZBOX PI320 pico
August 27, 2014, 9:00 AM
Quick Note: QNAP Announces $129 QGenie 7-in-1 NAS for Mobile Users
July 14, 2014, 9:32 AM
Apple Launches 21.5” iMac with 1.4GHz Core i5 Processor Priced at $1,099
June 18, 2014, 8:07 AM
Lowe's "Holoroom" Brings Holodeck, Home Improvement Dreams Closer to Reality
June 13, 2014, 9:06 AM
Intel to Broaden Market for Fanless Tablets, Ultrabooks with 14nm Intel Core M
June 3, 2014, 10:42 AM
Most Popular Articles
New AT&T Mobile Share Value "Double Data" Promotion Lasts Through October
September 28, 2014, 8:32 AM
Update: Apple Releases iOS 8.0.2 Update to Make Up for Botched 8.0.1 Release
September 25, 2014, 8:19 PM
Appalling Negligence: Decade-Old Windows XPe Holes Led to Home Depot Hack
September 8, 2014, 8:58 PM
TiVo Mega Features 24TB of Storage, Can Record Three Years* Worth of TV Content
September 8, 2014, 8:45 AM
FBI Outraged That Apple, Google are Adopting Digital "Locks" to Protect Users
September 26, 2014, 1:00 PM
Latest Blog Posts
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
Space Terrorism is a Looming Threat For the United States
Apr 23, 2014, 7:47 PM
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information