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IBM Unveils a Prototype Green Optical Network Technology

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#1
IBM Researchers today unveiled a prototype technology that could bring massive amounts of bandwidth in an energy efficient way to all kinds of machines - from supercomputers to cell phones - that could revolutionize the way people access, use and share information across many different applications. The new technology uses light instead of wires to send information and could allow, for example, the transmission of 8 trillion bits (terabits) per second of information - equivalent to about 5,000 high-definition video streams - using the power of a single 100-watt lightbulb.


This kind of bandwidth can drive energy efficiencies inside of datacenters and speed the sharing of large datasets, whether it's scientists crunching data to discover new drugs and forecast the weather, people sharing high-definition movies between devices and friends, doctors sending high-definition medical images to a specialist in seconds for diagnoses while patient is in office, or bringing the power of high-definition to mobile phones.

Consistent with green computing initiatives, the new optical technology could save massive amounts of power in supercomputers. For a typical 100 meter long link, the power consumed by the optical technology is 100 times less than today's electrical interconnects, and offers a power savings of 10 times over current commercial optical modules.

This prototype "green optical link" is designed to meet the bandwidth requirements for peta- and exa-flop supercomputing, marking a significant leap from related work unveiled by the same research team a year ago. The new technology puts optical chips and optical data buses in a single package with standard components.

"Last year we unveiled an optical transceiver chip-set that could transmit a high-definition movie in under a second using highly customized optical components and processes," said IBM Researcher Clint Schow, part of the team that built the prototype. "Just a year later, we've now connected those high speed chips through printed circuit boards with dense integrated optical 'wiring.' Now we have built an even faster transceiver and have moved the optical components away from custom devices to more standard parts procured from a volume manufacturer, taking an important step toward commercializing the technology."

The applications for this technology range from cell phones to supercomputers and span industries from consumer electronics to healthcare, including:
  • High-definition content everywhere: As high-definition video becomes more widespread, this technology will enable widespread HD video sharing and video on-demand by dramatically increasing the bandwidth of video servers. Web-serving sites that host videos could use the technology to access libraries with millions of high-definition movies and video clips in seconds, speeding up access for users. By incorporating an optical data port in laptops, HD video recorders, personal mp3 and video players, cell phones, or PDAs, HD video content could be stored and displayed on high- resolution external screens.
  • Patient Care: Physicians and researchers could send high-definition images such as MRIs, heart scans which are huge files, for real-time analysis and 3-D visualization.
  • Consumer electronics: "Scaled-down" versions of the optical interconnect technology may find applications in a range of consumer products. For example, in cell phones, one chip could sit in the base of the phone and the other could sit in the display, allowing for very large files, even high-definition content move from one to the other. The advantage is that by using optics instead of wires, the display can be flipped up and down or moved from side-to-side without being impeded by electrical wires.
  • Massive Bandwidth for Supercomputing: The improved bandwidth of data interconnects will enable massively parallel supercomputers to have a profound impact in many fields: offering improved molecular dynamics calculations, accelerating drug discoveries, providing accurate weather/climate modeling, as well advancing our understanding of sub- nuclear physics such as quantum chromodynamics.
The prototype that the IBM scientists revealed today is the world's fastest and most integrated optical data bus that could lead to connecting an unprecedented number of high-performance computers to work as a single system.

Tech Specs Behind IBM's Green Optical Network Technology
The optically-enabled circuit boards, or "Optocards," employ an array of low-loss polymer optical waveguides to conduct light between transmitters and receivers. The complete databus constructed with these Optocards not only incorporates a large number of high-speed channels, but also closely packs them to achieve unprecedented density: each waveguide channel is smaller in size than a human hair. The packaging approach for the complete system is unique in that it utilizes hybrid chip integration to produce a highly integrated optical module, or "Optochip."

The Optochip is a multi-component 3-D assembly, that is constructed with conventional surface mount solder processes similar to those currently used in the mass-production of electrical chips. The 10 Gb/channel databus is the first ever demonstration of an integrated module-to-module, 32-channel optical datalink on a printed circuit board. The need for high-bandwidth photonic communications between chips or modules has been discussed in technical literature for more than a decade, and various small pieces of the technology have been shown. IBM has assembled a fully functional and integrated solution, significantly advancing the field of chip-level optical interconnects. By proving the viability of high-density parallel optics, IBM has accelerated the prospect of real-world deployment of practical, high-capacity interconnects between chips.

In addition to the optical data bus, IBM also has developed a parallel optical transceiver module with a higher number of channels and an increased speed of operation: 24 transmitters and 24 receivers that each operate at 12.5 Gb/s. The resulting total bi-directional data transfer rate is an unprecedented 300 Gb/s, nearly doubling the performance of the earlier generation. Compared to current commercial optical modules the transceiver provides 10x greater bandwidth in 1/10 the volume while consuming comparable power. To enable low-cost volume production, the new transceiver uses standard 850-nm vertical-cavity surface emitting lasers (VCSELs), high-speed versions of the inexpensive devices found in many computer mice. By focusing on innovative packaging of low-cost and low-power technologies such as VCSELs and CMOS chips, IBM Research is paving the way to the widespread adoption of optical communications.

IBM has a long history of research into high-bandwidth parallel optics, and the current breakthroughs were achieved as part of a DARPA-funded program, launched in 2003, to demonstrate high-bandwidth chip-to-chip interconnects through polymer waveguides integrated on a printed circuit board. Further details of this work will be provided through two presentations at the 2008 Optical Fiber Communications Conference in San Diego, CA. Clint Schow will present "300-Gb/s, 24-Channel Full-Duplex, 850-nm, CMOS-Based Optical Transceivers," on Feb 25th and Fuad Doany will present "Chip-to-Chip Board-Level Optical Data Buses," on Feb. 28th. The team that developed the optical data bus and transceiver technology spans the worldwide IBM research labs, and the collective author list for these presentations includes : J. Kash, C. Baks, D. Kuchta, P. Pepeljugoski, C. Tsang, C. Patel, N. Ruiz, R. Horton, J. Knickerbocker, R. Budd, F. Libsch, R. Dangel, F. Horst, and B. Offrein.

Source: IBM
 

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#2
what is this, news from 1980? just kidding. its a new twist on an old technology im guessing.
 
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#3
If this is optimized for the internet optical cable could be replaced with these... Imagine of hooked up to a PC... :)
 

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#4
wew it does seem like a new twist i was like um....thats fiber optics its not really new...i remember this when i was like 7....
 
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#5
this is old news, this new twist was brought up a few months ago
 
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#6
*is still waiting for the fiberwire to his house...
 
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#7
i think you guys are missing the point here... its not just about fibre optics... its about fibreoptics on motherboards etc... and capable of 8TB p/sec....

remember that post a few days ago about googles undersea cable... well that was capable of 7TB p/sec and its probably about 1metre in diameter... so this is quite different ;)

I for one am patiently waiting the day when this tech becomes standard as solder on components and network connections around my house :D

I'll be an old man and be saying to my kids... it used to take 20 minutes to download a gig in my day son... hehehe
 
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#8
just remember ppl, it says "terabits" not "tarabytes" there 2 different things......
there are 8 bits in a byte... so it can move 1 Terabyte per second... not 8... just to clarify for ppl that dont know...

Tb = Terabit
TB = Terabyte

(note the uppercase "B")
 
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#9
yay 10Mb->100Mb->Gigabit->terabyte!

one terabyte network sounds tasty. do want.