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: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

Im Focus: New nanomaterial can extract hydrogen fuel from seawater

Hybrid material converts more sunlight and can weather seawater's harsh conditions

It's possible to produce hydrogen to power fuel cells by extracting the gas from seawater, but the electricity required to do it makes the process costly. UCF...

Im Focus: Small collisions make big impact on Mercury's thin atmosphere

Mercury, our smallest planetary neighbor, has very little to call an atmosphere, but it does have a strange weather pattern: morning micro-meteor showers.

Recent modeling along with previously published results from NASA's MESSENGER spacecraft -- short for Mercury Surface, Space Environment, Geochemistry and...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

Conference Week RRR2017 on Renewable Resources from Wet and Rewetted Peatlands

28.09.2017 | Event News

 
Latest News

A single photon reveals quantum entanglement of 16 million atoms

16.10.2017 | Physics and Astronomy

The melting ice makes the sea around Greenland less saline

16.10.2017 | Earth Sciences

On the generation of solar spicules and Alfvenic waves

16.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>