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midiguy
12th November 2003, 21:13
Israeli processor computes at speed of light

HERZLIYA, Israel (Reuters) - An Israeli start-up has developed a processor that uses optics instead of silicon, enabling it to compute at the speed of light, the company said.


Lenslet said its processor will enable new capabilities in homeland security and military, multimedia and communications applications.


"Optical processing is a strategic competitive advantage for nations and companies," said Avner Halperin, vice president for business development at Lenslet on Wednesday.


"Processing at the speed of light, you can have safer airports, autonomous military systems, high-definition multimedia broadcast systems and advanced next-generation communications systems."


An optical processor is a digital signal processor (DSP) with an optical accelerator attached to it that enables it to perform functions at very high speeds.


"It is an acceleration of 20 years in the development of digital hardware," Lenslet founder and Chief Executive Officer Aviram Sariel told Reuters.


The processor performs 8 trillion operations per second, equivalent to a super-computer and 1,000 times faster than standard processors, with 256 lasers performing computations at light speed.


It is geared towards such applications as high resolution radar, electronic warfare, luggage screening at airports, video compression, weather forecasting and cellular base stations.


Lenslet said its Enlight processor, unveiled at the MILCOM exhibition in Boston this month, is the first commercially available optical DSP.


"Optics is the future of every information device," said Sariel.


Jim Tully, vice president and chief of research for semiconductors and emerging technologies at Gartner Inc, said most companies working with optics focus on switching optical signals for telecommunications rather than processing information optically.


"I'm not aware of any company that has taken it to the extent of processing optically," he said.


Lenslet has raised $27.5 million so far from such investors as Goldman Sachs, Walden VC, Germany's Star Ventures and Chicago-based JK&B Capital.


PALM PILOT SIZE


The company's prototype is fairly large and bulky but when Lenslet begins to supply the processor in a few months it will be shrunk to 15 x 15 cm with a height of 1.7 cm, roughly the size of a Palm Pilot.


"In five years we plan to shrink it to a single chip," project manager Asaf Schlezinger said.


Tully said one issue is whether this technology can be produced in volume the way silicon chips are made.


"Because semiconductor manufacturing technology is well developed, you can produce millions at quite low cost," said Tully, who is not familiar with Enlight.


Lenslet said its processor will be competitive in price with a multi DSP board.


Sariel is negotiating joint projects with companies and/or government agencies in the United States, Europe and Japan to produce the processor for specific applications. It already has projects signed with Israel's Defence Ministry.


"We don't rule out licensing our technology to others," Sariel said. "We are looking at a virtual production line where production is done by others and we provide testing equipment."


Tully said semiconductor companies are working on technology that would use optical channels inside a chip to allow very high speed communication from one part of a chip to another.


"It's conceiveable this technology could become mainstream inside chips in 10 years time," Tully said.


http://uk.news.yahoo.com/031029/80/ecghf.html

Die*wrek*show
13th November 2003, 12:04
That's amazing, I wish I had something more intelligent to say about it all, but my brain works at the speed of vhs tape.:p I wonder what the biggest impact will be, as far as us end users are concerned.

Lord of the Discs
13th November 2003, 14:44
They´re not the only one, go google for "optical processor".

mpucoder
13th November 2003, 17:44
People have been trying this for as long as I can remember (and that's a long time - back to the 60's). I still don't see the advantage of it, and I see a lot of problems with the processor communicating with other components. btw, electricity in a conductor travels at nearly the speed of light, so what's the big deal?

int 21h
13th November 2003, 18:52
When electricity passes through a conductor, it may pass at nearly the speed of light, but it generates heat... this would provide a solution with alot less heat.

Koepi
13th November 2003, 19:05
If photons pass an optical element they don't get reflected by 100%. The missing part will get transformed into thermal energy. So heat is a problem with optical elements in that density and switching speed as well. ;)

Regards
Koepi

Kedirekin
13th November 2003, 22:12
It's not the speed of electricity that's the problem with today's processors. It's the switching speed of the individual transistors, which is very, very much slower than the speed of light. As they make trasistor elements smaller, the switching speed increases, but you run into all sorts of nasty effects that become harder and harder to compensate for.

As I understand it, the switching speed of optical elements is much higher (though I think it's still well below the speed of light). You get much faster processors without the need to shrink things down into the range of quantum physics.

[Aside: electricity (current) flows through wire at approximately 1/3 inch per second - it's just the electromotive force (EMF, or voltage) that moves at near light speed. It's like pushing on a steel rod; the rod might move very much slower than the speed of sound, but the push reaches the far end of the rod at the speed of sound.]

midiguy
14th November 2003, 05:17
Originally posted by Lord of the Discs
They´re not the only one, go google for "optical processor".

Hmm, I did. Only seemed to find articles about the Lenslet (Israeli company) optical processor. I know that Lenslet plans on exporting their technology to other countries in Europe, to Japan, and to the US, to start a more international development effort.

Anyways, it seems that most experts agree that optics is the future for processors. And the technology can only get better from here.

badbert
16th November 2003, 01:51
A few years ago i saw a Learning channel special about a company in India that had a processor made from silica glass. It was at that time capable of speeds 100 times faster than normal processors. Supposedly the processor had the ability to reason (to a small degree). A team of people spent their time feeding the computer information, to create a huge database. And the computer was allowed free reign of the information. While they were filming the show the computer told them, "The father of a family, is like the dictator of a country." Not exactly rocket science, but a pretty deep thought for an inanimate object.

Prettz
16th November 2003, 02:36
Work on nanocomputers (especially uses of carbon nanotubes in circuitry) will still continue to progress, though, since there will always be a market for exceedingly tiny circuits, regardless of whether they can perform comparably with Pentium-sized optical processors. That is unless they predict being able to eventually shrink optical circuits to the same nano-scale dimensions...

Atamido
16th November 2003, 06:56
Originally posted by Kedirekin
It's like pushing on a steel rod; the rod might move very much slower than the speed of sound, but the push reaches the far end of the rod at the speed of sound. It should be noted that the speed of sound is different depending on the type of substance it is traveling through and the condition of that substance. In this case the speed of sound in steel is very high.