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DWDM Network Designs and Engineering Solutions by Tony Antony, Ashwin Gumaste

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Chapter 9. Tests and Measurements

A typical optical fiber network is composed of many passive and active components working in conjunction to form a complete communication system. The performance characteristic of each component (subsystem) affects the total performance of the entire system. To effectively design and implement a fiber network, system engineers need to know the exact characteristics of the fiber links. The attenuation and dispersion characteristics of a fiber change during the installation phase, and they also limit the maximum distance and bandwidth of the fiber. Measuring these parameters and testing for conformance is crucial during the manufacturing, installation, and maintenance phases. Cracks in fiber can degrade the overall ...

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