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Tag Archive: Fiber Optic Cable Articles | OFS Optics

  1. Need Premises Fiber Optic Cable? Go Small and Dense!

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    When you need a fiber-dense yet compact cabling solution for high-bandwidth, high-density applications, look to the R-Pack™ Rollable Ribbon (RR) Backbone Fiber Optic Cable. As the newest member of our award-winning Premises Rollable Ribbon cable portfolio, this cable marks a key step forward in premises building cable innovation.

    Doubling the Density

    Combining plenum-rated materials with OFS rollable ribbons creates a very compact, yet robust and fiber-dense cable. By featuring rollable ribbons, the latest OFS optical fiber technology, the R-Pack RR Backbone Cable offers twice the fiber density when compared to a traditional flat ribbon premises cable. The result is a reduced diameter, fiber-dense cable that helps customers to substantially improve fiber routing and save on space in congested pathways.

    What are Rollable Ribbons?

    To form rollable ribbons, 250 micron fibers are partially bonded to each other at intermittent points. Rollable ribbon cables offer the advantages of both loose fibers and traditional flat fiber ribbons in one fiber optic cable. These ribbons can be rolled and routed similarly to individual bare fibers and can also be spliced like traditional fiber ribbons.  Rollable ribbons promote efficient and cost-effective mass fusion splicing while also offering easy breakout of individual fibers. These capabilities can help simplify cable installation, save on splicing time and costs and get a new data center or building deployment up and running quickly.

    Versatile Cable

    While the R-Pack RR Backbone Cable meets stringent Telcordia GR-409 standards for horizontal backbone applications, its plenum construction also meets NFPA 202 requirements for use in a number of demanding building applications, such as routing through ladder racking and raceways.  This fiber optic cable can also be used in numerous other application spaces or even to construct assemblies.

    Featuring 24, 48 or 72 optical fibers in a versatile design, the R-Pack RR Backbone Fiber Optic Cable is a natural choice for use in Data Centers, Central Offices and Fiber-to-the-Business applications.

     

  2. The Incredible Shrinking, Double-Density Fiber Optic Cable

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    As everyone uses more bandwidth than ever before, today’s networks require more optical fiber in less space. To help address this need, OFS introduced Fortex™ 2DT Fiber Optic Cable, the newest addition to the completely gel-free Fortex DT Cable product line.

     

    Fiber Optic Cable: Getting Smaller and More Dense

    Fortex 2DT Cable is the industry’s first fully Telcordia GR-20-rated, totally gel-free, loose tube fiber optic cable to feature 200 micron (µm) optical fiber. This fiber literally doubles the fiber count in the cable buffer tubes, significantly increasing fiber density. And, by using AllWave®+ 200 Micron ZWP Single-Mode Fiber, this fiber optic cable also offers more efficient use of network pathways.

     

    Just as importantly, the Fortex 2DT Cable design reduces cable outer diameters by up to 18% and areas by up to 32%. This smaller outer cable diameter increases the efficient use of duct and subducts. Plus, cables with reduced outer diameters allow longer continuous cable reel lengths, which can result in fewer splices needed. In a deployment over long distances, less splicing can help create substantial cost savings.

     

    Lighter is Better

    The Fortex 2DT Cable is also lighter in weight. This lower weight can help to reduce cable pulling tensions which can increase cable pulling lengths. These increased pulling lengths can, in turn, help to save on installation time and costs. For aerial deployments, a lighter-weight cable can also decrease the loads on poles.

     

    A Fiber Optic Cable Design for Your Application

    The Fortex 2DT Cable product line features single jacket, light armor and armored cable options. These cables are available with up to 288 fibers in Telcordia GR-20 Issue 4 compliant cable designs. While the single jacket cable is an excellehttps://fiber-optic-catalog.ofsoptics.com/item/outdoor-fiber-optic-cables/loose-tube-fiber-optic-cables-1/fortex-2dt-single-jacket-cablent choice for duct, lashed aerial and general outside plant (OSP) installations, the light armor and armored cables feature a layer of rugged electrolytically chrome-coated steel (ECCS) armor. The armored cable also includes an inner polyethylene (PE) jacket. With these added features, the light armor and armored cables offer extra durable crush resistance for more demanding OSP applications, including direct buried in challenging environments.

     

    >> View our complete line of Fiber Optic Cable

     

     

  3. Using Dark Fiber Optic Cables to Detect Earthquakes

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    Researchers hope to use networks of unused, dark fiber optic cables to help detect underground sound waves that can warn of an impending earthquake.

    Millions of miles of unused, dark fiber optic cables are installed underground. A research team of scientists from the University of California (Berkeley) and Lawrence Berkeley National Lab have been experimenting with a new predictive technique. This method may gather measurements of movement in the Earth’s crust that are superior to those obtained by current seismic detection systems.  

                                                                                                                                                                                                                                                                          Measuring Activity

    In seismology, scientists often have only a small number of sensors to use in detecting earthquakes. This is one reason why measuring vibrations through the Earth’s surface is an uneven, “touch-and-go” venture. Also, some seismically-active areas have many sensors on hand, while places distant from shifting tectonic plates may have very few. This variation in equipment can make it tough to measure seismic vibrations in places where, for example, fracking triggers earthquakes. Using the new method, users could turn each fiber optic cable length of a few feet into an individual seismic sensor.

    In this new experiment, the research team “borrowed” from other groups who have developed distributed acoustic sensing (DAS) methods. In DAS, laser pulses are used to detect minute vibrations along optical fiber/cable. Researchers insert units called interrogators along the optical fiber/cable. These interrogator units send out and sense short infrared laser pulses. Triggered by seismic activity, tiny strains on the optical fibers cause some of the laser light to be reflected and then bounced back to the sensor. By sending rapid pulses, the scientists can detect changes in the light scattering over time. By knowing the speed of light, they can pinpoint where the activity occurred.

    “Real World” Testing   

    With this latest technique, the researchers essentially tested the DAS method in the real world. They plugged their interrogators into the fiber optic cable line along the Department of Energy’s Dark Fiber Testbed. This 13,000-mile stretch of telecommunications fiber in the western U.S. is used for testing new communications equipment. The researchers targeted a 17-mile cable segment near West Sacramento, California, and recorded data from July 28, 2017, up to January 18, 2018.

    The research team successfully recorded information on the speed of sound waves traveling through the Earth. In fact, during September 2017, they detected and measured the massive 8.1 magnitude earthquake in Mexico (the strongest quake to hit Mexico in a century).

    Unfortunately, this detection technique isn’t ready to be used beyond research. But keep an eye open for possible use in the future!

  4. Celebrating Women and Girls in Science

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    Today the United Nations, its partners and women and girls around the world are marking the International Day of Women and Girls in Science.

     

    Recent studies suggest that 65 per cent of children entering primary school today will have jobs that do not yet exist. While more girls are attending school than ever before, girls are significantly underrepresented in Science, Technology, Engineering and Math (STEM) subjects in many settings. They also appear to lose interest in STEM subjects as they reach adolescence. In addition, less than 30 percent of researchers worldwide are women.

     

    As a step forward in reversing these trends, the April 2018 National Math and Science Initiative’s “Yes, She Did” campaign honored female STEM inventors. During the campaign, teachers, students, grandmothers and education enthusiasts voted fiber optic cable as the most impactful woman-influenced innovation.

     

    One of the women highlighted in the campaign is Shirley Jackson, the first African-American woman to earn a doctorate from the Massachusetts Institute of Technology (MIT) and the first African-American woman to be awarded the National Medal of Science. She is credited with scientific research that enabled the invention of such things as the portable fax, touch-tone telephone, solar cells and fiber optic cable.

     

    “It’s madness that women aren’t always recognized for their STEM contributions,” the National Math and Science Initiative (NMSI) wrote in introducing its social media audiences to the women behind eight highly impactful innovations. In addition to fiber optic cable, NMSI highlighted the women behind the circular saw, Laserphaco probe, dishwasher, Kevlar® Fiber, modern home security system, computer programming and NASA’s space bumper.

     

    “Fiber optic cable shrunk the global marketplace and now everything’s connected real-time to be faster, better, stronger,” said NMSI Chief Information Officer Rick Doucette.

     

    On this International Day of Women and Girls in Science, let’s change the trends on women in science and technology. Join us in celebrating women and girls who are leading innovation and call for actions to remove all barriers that hold them back.

  5. The “Wet Net” World of Underwater Fiber Optic Cables

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    You panic when even a few drops of water fall on your laptop. Everyone knows that water and electronics don’t “mix.” That’s why it seems so ironic that most of the Internet’s “hard” infrastructure lies underwater on the ocean floor.

    Virtually all global data travels through millions of miles of submarine fiber optic cables beneath the ocean’s surface. More than 350 subsea cable lines stretch from the U.S. West Coast to the East Coast, with many more being deployed to connect countries around the world.

    Installing submarine fiber optic cables deep on the ocean floor is time consuming and expensive. While special ships deploy the cable, ocean divers repair and maintain the network. And even with thick, protective jackets, there are many ways to damage a cable. Some destructive forces include ship anchors, commercial fishing equipment, earthquakes, hurricanes and even sinister interference. (more…)

  6. 5G: What’s All the Hoopla About?

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    5g and Fiber Optics There’s been lots of excitement and even some “hype” around the idea of 5G. But what is it really? Does it mean just faster internet? Will it really be that much better than 4G? Many people are asking these questions as the FCC begins to auction the first licenses for the airwaves that will carry 5G service.

     

    What Is 5G, Really?

    5G will be up to 100 times faster than today’s cellular connections – and even faster than many home fiber optic broadband services. But it’s not just about speed. Networks will have greater capacity and respond faster than earlier wireless services. More people and devices will work at the same time on the same network without slowing it to a crawl. And it will do all of this with lower latency. Latency is the time delay between a device contacting the network and receiving a response.

    This improved latency will help to bring about some of the most amazing tech trends on the horizon. And while 5G may not change your life right away, it will certainly bring some totally new technologies to life. For now, here are a few of the most exciting apps and technologies that 5G will enable.

    Promising 5G Applications

    Self-driving vehicles – Self-driving cars will be a common sight with the next generation of wireless service.  And 5G will make vehicle-to-vehicle communication happen – where cars can almost instantly share information between them on their location, speed, acceleration, direction and steering. Many experts believe that this feature will become the greatest lifesaving advance in the auto industry in more than a decade. Using this, cars will know before their drivers when another car moves into your blind spot or when a dump truck that’s six vehicles ahead suddenly stops.

    Telesurgery – Remote surgery isn’t new. However, 5G could make a huge difference in providing medical care to millions in distant locations, along with training doctors remotely in surgery and other specialties.

    Virtual Reality – For truly realistic virtual reality (VR), a wireless network must carry tons of data. And while it must be fast, the network must also handle this data deluge to create a life-like VR experience. It will take 5G to make this happen.

    Drones: 5G technology will let drones talk to one another, helping prevent overhead accidents while in flight.

    5G wireless networks can make many of the technologies, applications and experiences that we’ve been waiting for a reality.

  7. Could Fiber Optic Sensors Help Prevent Power Theft?

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    Fiber optic sensors could one day catch thieves who steal electricity and materials from overhead power lines. The UK firm Bandweaver recently demonstrated a distributed acoustic sensing (DAS) system that detects invasion and interruption on power lines. The system does this by using back-scattering effects along an optical fiber.

    The Cost of Tampering
    A major global problem is tampering and theft from power lines. In fact, this activity costs the electric industry an estimated $96 billion a year. Tampering can also interrupt power supplies and lead to operating losses for power companies and national grids.

    Detecting and identifying theft when it first happens is the key to solving this problem. The power industry generally sees current solutions as time consuming, inefficient and expensive.

    The Demonstration

    Working with Dominican Republic power company ELESUR and an infrastructure firm, Bandweaver installed its system at an ELESUR sub-station in Santo Domingo. The team hoped to show how the photonics technology could locate and identify any tampering with overhead lighting and distribution poles connected to a fiber optic cable. They believed that by continually watching just one optical fiber, the system could monitor the entire route for real-time threats 24/7 using existing fiber optic cables.

    The team installed the system and waited. When power company employees created different types of disturbances at random power line locations, the DAS system detected and located each problem.

    Conclusion
    Bandweaver believes that the demonstration’s success proved the ability of its system. The DAS system identified the exact location of each incident and then sent specific information to security systems and alerted company staff.

    Possibly the greatest value of the system is that it alerted the power company when a threat began. This “heads up” notification could help companies act before major damage is done. And this capability could help to reduce costs and improve system operations.

  8. Make Way for High-Density Fiber Optic Cables

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    High density cable means more fiber density in less space. From 5G to data centers to FTTx, the picture is clear. Everyone uses more bandwidth than ever before. And while bandwidth demand may seem endless, the space to install fiber optic cable isn’t. That’s why being able to install more optical fiber in the same or less space can be a game changer for today’s network operators. And it’s why “High Density” is also a critical word for many service providers today.

    With microcables and rollable ribbon cables that increase fiber density while saving on space, OFS is your high-density fiber optic cable solutions provider.

    Rolling In the Optical Fiber

    Rollable Ribbon fiber optic cables are one of the most exciting outside plant (OSP) cabling technologies today. These cables feature rollable ribbons, the newest fiber ribbon design from OFS. This ribbon can be “rolled” (compacted) and routed like individual fibers, allowing the use of smaller closures and splice trays.

    With up to 3,456 fibers, OFS AccuTube®+ Rollable Ribbon (RR) Cables help network operators double their fiber density in the same size duct or space. They also enable very efficient, cost-effective mass fusion splicing and easy individual fiber breakout. This ability helps simplify installation and save on labor costs. And by maximizing duct use, high-density AccuTube+ RR Cables are an excellent choice for connecting very large fiber distribution hubs. They are also very suitable for data centers, FTTx and access networks.

    Taking Things Indoors……

    With the award-winning AccuRiser™ RR and AccuFlex® RR Cables, network operators can bring the benefits of rollable ribbon cables indoors. The innovative indoor/outdoor AccuRiser RR Cable helps ease cable installation over ladder racking and through tight bends during routing. This high-density cable is excellent for use in data centers or central offices. It’s also a great choice for building-to-building cable connections along with routing for terminations and frames, and preconnectorized applications.

    The strong yet flexible, plenum-rated AccuFlex RR Cable helps prevent installation problems such as packing density, routing and deployment speed. This cable’s flame rating meets NFPA 262, allowing the cable to be installed into air-handling spaces. The AccuFlex RR Cable is an outstanding solution for data centers, central offices and head ends.

    With Limited Space, Go Small (and Dense)

    To help solve the problem of deploying or upgrading crowded FTTx or underground networks, OFS created the high-density MiDia®Microcable family. Optimized for exceptional air-blown installation, MiDia microcables can help lower installation costs while increasing fiber optic density and capacity in limited spaces. The MiDia Cable portfolio includes MiDia Micro FX Cable,  MiDia Micro GX Cable and MiDia200 Micro FX Cable.

    And for network operators who prefer ribbon cables and the benefits of mass fusion splicing, OFS offers the AccuRibbon® DuctSaver® FX Cable. This cable makes optimal use of valuable duct space. It also maximizes the key advantages of air-blown microduct installation: rapid deployment and service turn-up.

    To learn more about high-density fiber optic cables, contact OFS at 1-800-fiberhelp.

  9. Fiber Optic Cables as Undersea Seismic Monitors?

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    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.

    (more…)