TAILIEUCHUNG - Technicians’ Best Practices: Handling Reduced Bend

Some monumental breakthroughs have taken place in optical fiber cables and their ability to bend around sharp corners without increasing attenuation – but today’s technicians and installers may be receiving mixed messages. This paper will highlight the potential issues surrounding these new fibers as they apply to the people who handle and install the cables in fiber-to-the-premise (FTTP) applications. | Next Gen NETWORKS Technicians Best Practices Handling Reduced Bend Radius Fiber Technicians Best Practices Handling Reduced Bend Radius Fiber Some monumental breakthroughs have taken place in optical fiber cables and their ability to bend around sharp corners without increasing attenuation - but today s technicians and installers may be receiving mixed messages. This paper will highlight the potential issues surrounding these new fibers as they apply to the people who handle and install the cables in fiber-to-the-premise FTTP applications. The possibility of perceiving these new fibers as being virtually indestructible is a dangerous misperception. Technicians must be acutely aware that reduced bend radius fibers are in the end still glass and still subject to the same forces that have traditionally caused increased attenuation problems and failure in optical links. ADC s intent is to educate technicians and installers about the true attributes of reduced bend radius fibers while reinforcing the idea that proper fiber cable management techniques still apply. Bend-proof isn t break-proof Technicians should be aware that the new breed of reduced bend radius fibers can reduce minimum bend radius requirements significantly but they can also still become damaged or even broken if mishandled or stressed beyond their limitations. The fibers are designed to reduce the minimum bend radius from the traditional 10 times the outside diameter of the jacketed cable about 38 mm to as low as 5 mm with negligible added attenuation. Applications for reduced bend radius fiber began in the 1990s with specialized use in optical subassemblies and dense wavelength division multiplexing DWDM systems including oceanic repeaters where reduced space is a critical issue. As WDM installations gain traction in access segments of optical networks such as new WDM passive optical networks WDM-PON these new fibers are gaining even more momentum. With the evolution of cable structures that provide .

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