Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Changing fiber optics communications

22.10.2003


Florida Tech professor quadruples amount of information carried on single cable



Dr. Syed Murshid’s eyes light up as he flips the switches, one, two, three, and four. As the Florida Tech associate professor of electrical engineering uses his optics projector, pulses of red light project onto a wall. With each click, a new concentric circle appears. The circles represent a sea change in information technology. When he’s finished, a red glowing bull’s eye shines brightly, and Murshid laughs.
"The future of fiber optics is right on target," he said.

Indeed, if the future of communications can be found in the tiny glass strand of a fiber optic cable, then Murshid’s patented discovery may change the future.



"Fiber optics has always enchanted me," Murshid said. "I was amazed when I realized that this tiny piece of glass -- only the size of a hair -- can transport so much information."

The miracle of fiber optics goes far beyond wires made of glass.

"The information signal carried through fiber optics is a beam of light, much like that projected on the wall," said Murshid. "In order to prevent a loss of signal over great distances, the glass used must be very clean."

The glass is so clean, in fact, that if the ocean was as pure, you could see the bottom from the surface.

Murshid has already discovered a way to quadruple the amount of information carried over a single fiber optic cable. Offering an example, he compares information sent through fiber optics to FM radio.

"Radio stations have to broadcast at a certain frequency, WFIT, for example, is 89.5 Megahertz here on the Space Coast," he said. "But, if you go to Tampa, you will hear a different station broadcasting on 89.5 because the distance between the two stations enable them to operate without interference."

The same used to be true for information sent through fiber optics cables. Each cable could accommodate a set of frequencies or wavelengths, but could use each individual frequency or wavelength only once. But now, through a patented process called Spatial Domain Multiplexing designed by Murshid, Dr. Barry Grossman, Florida Tech professor of electrical engineering, and Murshid’s doctoral graduate assistant Narakorn, the same fiber optic cable can transmit multiple pieces of information at the same wavelength without interference, thus significantly increasing the effective information carrying capacity of the cable.

"In this process we are able to transmit information from multiple sources at the same frequency with high reliability and high accuracy," Murshid said. "In effect, we quadruple the information-carrying capacity at a very low cost."

The information-carrying light pulses are transported through the fiber optic cable as concentric circles – giving the pattern the appearance of a target.

Dr. Ron Bailey, dean of the Florida Tech College of Engineering, said Murshid’s discovery may transform the telecommunications industry. "By increasing the capacity of a single optical fiber, Dr. Murshid’s process has eliminated the need for additional cables," said Bailey. "Up until now, if a telecommunications company needed more capacity, it was forced to undergo the expensive process of laying down more fiber. This new technology provides them with a cost-effective solution."

Murshid believes the technique that makes it possible to quadruple the amount of information carried at the same frequency on a single fiber optic cable has the potential for enormous gains in information-carrying capacity.

"We’ve been able to successfully transmit at the same frequency four independent beams of information-carrying light so far," he said. "But we’re only scratching the surface. We will be able to increase this number over time."

Jay Wilson | EurekAlert!

More articles from Communications Media:

nachricht New Technologies for A/V Analysis and Search
13.04.2017 | Fraunhofer-Institut für Digitale Medientechnologie IDMT

nachricht On patrol in social networks
25.01.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

All articles from Communications Media >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Organ Crosstalk: Fatty Liver Can Cause Damage to Other Organs

18.08.2017 | Life Sciences

Gold shines through properties of nano biosensors

17.08.2017 | Physics and Astronomy

Greenland ice flow likely to speed up: New data assert glaciers move over sediment, which gets more slippery as it gets wetter

17.08.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>