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Archived — Fiber Optic Technology


Preparing for 100-GbE in the data center

With the continued requirement for expansion and growth in the data center, cabling infrastructures must provide reliability, manageability, and flexibility. Deployment of an optical connectivity solution allows for an infrastructure that meets these requirements for current applications and data rates. Scalability is an additional key factor when choosing the type of optical connectivity. Scalability refers not only to the physical expansion of the data center with respect to additional servers, switches, or storage devices, but also to the infrastructure to support a migration path for increasing data rates. As technology evolves and standards are completed to define data rates, such

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Buried Cable Installation Best Practices (2)

5.0 PLOWING VERSUS TRENCHING 5.01 In general, the most desirable and economical method of cable placement in open or rural areas is plowing. Here there will be fewer obstacles to impede the progress of the plowing equipment. Advantages of Plowing: Speed of installation in open areas Less ground disturbance than may be caused by trenching Disadvantages of Plowing: Large size and high cost of equipment Requires skilled equipment operators, quality supervision, and equipment in good condition Can not be used for all soil and terrain conditions Possibility of damaging cables or underground utilities 5.02 In urban or suburban areas where

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Buried Cable Installation Best Practices (1)

1.0 GENERAL 1.01 This best practices procedure provides general information for the installation of fiber optic cables in direct buried applications. The methods described are intended for guideline use only, as it is impossible to cover all the various conditions that may arise during an installation. Individual company practices for placing fiber optic cable should supersede any conflicting instructions in this document when they do not exceed the cable’s optical and mechanical performance specifications. 1.02 Placement methods for direct buried fiber optic cable are essentially the same as those used for placing direct buried copper cable. However it must be

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Fiber Optic Cable Installation Guidelines

Safety Precautions • When installed on a live system, invisible laser radiation may be present. Do not stare into connector end face or view directly with optical instruments. • Wear safety glasses when working with optical fiber. • Dispose of all scrap fibers to avoid getting fiber slivers. 1 Scope The following guidelines are intended as a general overview of important issues related to the installation of fiber optic cable. 2 Installation Specifications For a proper cable installation, it is important to understand the cable specifications. The two most important specifications are tensile loading and bend radius. It is very

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Optics for Fiber Laser Applications

Fiber lasers have found a processing and research niche where Nd:YAG lasers are too expensive or have beam properties which are undesirable (e.g. large M2 values). Users of fiber lasers may be concerned with the interchangeability of their existing supply of optical components or how to specify new optics. This article addresses such areas of concern and highlights which characteristics should be specified particularly carefully. Fiber lasers are gaining ground in a variety of applications such as drilling, welding, foil cutting, laser marking, and precise micro-machining. Research scientists are also finding them very useful as sources because of their small

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