Shades of Harry Potter’s invisibility cloak! A recent study in Optica describes a new way to achieve cloaking invisibility. In this method, researchers manipulated the frequency (color) of light waves passing through an object. This approach overcomes critical shortcomings in existing cloaking technologies. The research team says that this technique could help to secure data sent over optical fiber. It could also improve current technologies for sensing, telecommunications and information processing.
Most current cloaking devices can only conceal an object when it is illuminated with just one color of light. However, sunlight and most other light sources are broadband (i.e., they contain many colors). Also, typical cloaking solutions work by changing the dispersion path of the light around the object to be concealed.
The new solution avoids these problems by allowing light waves to pass through the object, rather than around it, while still avoiding any interaction between the light waves and the object.
To achieve this, the researchers rearranged different colors of broadband light so that the light waves passed through the object without actually “seeing” it. For example, if the object reflected green light, they would then change light in the green portion of the spectrum to another color. In this way, there would be no green light for the object to reflect. Then, once the light wave cleared the object, the cloaking device reversed the shift, returning the wave to its original state.
This spectral cloaking device could be useful in working with current telecommunication networks. These systems use broadband waves as data signals to transmit information over optical fiber. Spectral cloaking could selectively determine which operations are applied to a light wave and which are “made invisible” over certain periods of time. Service providers could use this capability to prevent eavesdroppers from gathering information by probing a fiber optic network with broadband light.
Also, providers could transmit more data over a given line by selectively removing and then reinstating colors that are used as telecommunication data signals. This capability could help to reduce “logjams” as data demands continue to explode.
To learn more, go HERE and HERE.
Detecting ocean-floor seismic activity is crucial to our understanding of the interior structure and dynamic behavior of the Earth. However, with 70% of the planet’s surface covered by water and only a handful of permanent, ocean-bottom seismometer stations, very little overall seismic activity is actually recorded.
Now, a group of researchers from the United Kingdom, Italy and Malta have found a way to use submarine fiber optic cables already deployed on the ocean floor as seismic detectors. In a paper published in the journal Science, the research group outlines how they discovered this capability and how it would operate.
Giuseppe Marra, a member of the group, was testing an underground fiber cable between two locations in the United Kingdom. Noticing a small slowdown in signal delivery, he traced it to tiny vibrations bending the light. He then determined that the vibrations were caused by a remote earthquake. This discovery inspired him to explore using fiber optic cables as seismic detectors.
Meet the new EZ!Fuse Splice On Connector (SOC) Termination System. This system offers an easier-to-use solution that is more reliable and cost-effective than other available splice on and mechanical connectors.
The EZ!Fuse SOC system allows for easy termination and flexibility in the field. This new splice on connector requires no field polishing or epoxy which significantly increases the quality and consistency of field connector termination. It also greatly reduces the total installation time needed when compared to traditional methods. In addition, the connector is easily assembled using a process that requires minimal skills and/or training. (more…)
OFS now offers users more ways to double their optical fiber density by expanding the AccuTube®+ Rollable Ribbon Cable product family. These new cables with 432, 576 and 864 fibers feature rollable ribbons, the newest fiber optic ribbon design from OFS. These cables are available in 100% gel-free, all-dielectric single jacket and light armor constructions.
Rollable ribbon fiber optic cables are one of the most exciting developments in outside plant (OSP) cabling in years. These cables can help users gain substantial time and cost savings with mass fusion splicing. And they also double the fiber density in a given size duct compared to traditional flat ribbon cable designs.
Each OFS rollable ribbon features 12 individual 250 µm optical fibers that are partially bonded to each other at predetermined points. These ribbons can be “rolled” into a flexible and compact bundle that offers the added benefit of improved fiber routing and handling in closure preparation.
This completely gel-free cable design also helps to reduce the time needed for splicing preparation by up to 80%. In addition, these rollable ribbon cables are smaller and weigh at least 35% less than conventional flat ribbon cables. This reduced weight improves cable handling and also helps to relieve the tension placed on installation poles.
The AccuTube+ Rollable Ribbon Cable product portfolio also features cables with 1728 fibers in both single jacket and light armor designs and 3456 fibers in a single jacket construction. All of these cables meet or exceed the requirements of Telcordia GR-20 issue 4.
With its ability to maximize duct utilization, the AccuTube+ Rollable Ribbon Cable is an excellent choice for connecting data centers, and serving as distribution for dense FTTx or mobile networks. To learn more about these cables, go here and here.
OFS expanded its ocean product portfolio by introducing the new TeraWave SCUBA 125 Optical Fiber at the OFC Conference in San Diego, California, held March 12-15.
This latest submarine fiber from OFS is optimally designed to deliver excellent performance for coherent transport submarine systems. The effective area of TeraWave SCUBA 125 Fiber is matched to terrestrial G.654.E fibers for reliable performance from the ocean landing site to terrestrial networks. In addition, this fiber offers outstanding cabling performance in the C- and L-bands along with world-class attenuation.
The effective area of 125 square-microns reduces non-linearities, enabling the launch of higher signal power when compared to G.652 fibers as well as most G.654.B fibers, while the ultra-low attenuation of ≤ 0.158 dB/km (average) reduces signal noise. Together, these capabilities enable the launch of higher signal power into the span and lower amplifier noise. This, in turn, allows higher transmission speeds with more wavelengths over trans-Atlantic distances than ultra-low-loss G.652 fibers. (more…)
Meet two new, totally gel-free fiber optic cables from OFS that feature the company’s exciting new rollable ribbon technology. Using cables with this ribbon design, users can literally double the fiber density in an existing duct.
First, the new AccuTube®+ Rollable Ribbon (RR) Fiber Optic Cable was specifically created to maximize duct utilization for ultra-high fiber count applications.
Available with 1728 and 3456 fibers in a single cable, the AccuTube+ RR Cable offers exceptional carrying capacity, highly efficient and cost-effective mass fusion splicing, and easy individual fiber breakout. This cable is an ideal choice for connecting data centers and serving as distribution for dense Fiber-to-the-Subscriber (FTTx) or mobile networks.
Next, available in 144 and 288 fiber counts, the new AccuRiser™ Rollable Ribbon (RR) Fiber Optic Cable offers the triple benefits of mass fusion splicing, compact size, and excellent flexibility for tough, indoor routing applications. Every element of this new cable was designed to offer high fiber density while helping to speed installation during a new data center or central office deployment. (more…)
The adoption of mobile devices, data-intensive applications and 4G LTE networks are just few of the key factors driving the ever-increasing demand for greater network and Internet bandwidth.
In fact, a recent article in Optical Connections Magazine maintains that fundamental physics could pose a threat to the Internet’s continued expansion.
However, according to Robert Lingle of OFS, new fiber designs such as multi-core, few-mode and hollow core fibers could be capable of extending the limit.
To learn more, go HERE.
If you missed the initial presentation, it’s not too late to view the Telecommunications Industry Association’s (TIA) Cabling Standards Update Spring 2017 webinar hosted by Cabling Installation & Maintenance.
The TIA TR-42 Engineering Committee continues to develop and revise standards and specifications relating to cabling components and systems. Because many North American cabling projects are specified to comply with TIA standards, these documents are among the most relevant to anyone involved in cabling-system design, installation, certification or management. This webcast seminar provides an update on some of the newest development and revision projects taking place in the TR-42 committee.
To learn more or access the presentation, which includes OFS’ Tony Irujo, please GO HERE.
Leading experts from OFS will present six technical papers at the first-ever UL and IWCS China Cable & Connectivity Symposium in Shanghai, China, from April 25 through April 27, 2017.
These presentations will cover a wide range of subjects from acrylate-based, harsh environmental coatings for specialty optical fiber to high-speed, SWDM transmission over Wideband Multimode Fiber.
To learn more about these technical papers and the Symposium, go here.
As data centers increase in size and scale, many industry watchers wonder when the use of single-mode optical fiber will overtake multimode fiber in these facilities. For hyperscale data center designers, that time has arrived. However, for much of the enterprise market, multimode fiber still offers significant cost and power savings over other fibers for supporting short-reach links.
As you read this blog, multimode fiber developers are hard at work creating even more cost-effective, short-reach solutions. In fact, fiber manufacturers recently introduced OM5 wideband multimode fiber, which will support short wavelength division multiplexing (SWDM).
In a new ICT Today article, OFS Product Manager John Kamino takes an in-depth look at the evolution, introduction and standardization of wideband multimode fiber. To learn more, read here.