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: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>