Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

On-Chip Light Speeds up Computing

Photonics.com
Feb 2010
SYDNEY, Australia, Feb. 1, 2010 – A new laser that allows light to be used on a computer chip has been realized by an international team of researchers, led by David Moss, associate professor and senior researcher at The University of Sydney. The group developed a multiple wavelength laser on a silicon chip that produces light to process and transmit information, and in doing so, will speed up computing.

"The on-chip light source will be key to enabling the simultaneous transmission of multiple data channels either on-chip or between chips in a single optical fiber, each at a different wavelength," said Moss, adding that this technology will ultimately provide the consumer with cheaper and faster computers.

"Currently information on a chip is shuffled around using electronic signals over copper wires, or interconnects. We know that metal is prone to 'choking' on the bandwidth bottleneck," said Moss, adding that using light for simultaneous multiple information processing is an important breakthrough.

The paper titled, "CMOS-Compatible Integrated Optical Hyper-Parametric Oscillator" was recently published in Nature Photonics (concurrently with a report from Cornell University on a similar device).

With society's demands for even faster technology, ultrafast on-chip and chip-to-chip optical data communications are important. More efficient methods to transmit vast amounts of data around circuit boards are needed to keep up with these requirements.

Though multiple wavelength sources are already known, the team has developed them on a chip that, in principle, can not only be integrated with silicon computer chips (i.e. CMOS) but can be also fabricated using the same methods. The device, based on high index doped silica glass, is low loss and has a high degree of manufacturability and design flexibility.

This makes it an ideal integrated multiple wavelength source not just to improve computing power, but for a wide range of applications including telecommunications, high-precision broadband sensing and spectroscopy, metrology, molecular fingerprinting, optical clocks, and even attosecond physics.

For more information, visit: www.sydney.edu.au  


GLOSSARY
metrology
The science of measurement, particularly of lengths and angles.
optical fiber
A thin filament of drawn or extruded glass or plastic having a central core and a cladding of lower index material to promote total internal reflection (TIR). It may be used singly to transmit pulsed optical signals (communications fiber) or in bundles to transmit light or images.  
Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x We deliver – right to your inbox. Subscribe FREE to our newsletters.