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Basic Test Methods for Passive Fiber Components

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Basic Test Methods for Passive Fiber Components

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The ever increasing demand for telecommunications bandwidth is driving the market for the components that make up fi ber-optic networks. This article presents basic principles of passive component testing and compares test methods. In particular, the benefi ts and drawbacks of broadband and narrowband sources measurements are discussed. For the purpose of this article a “passive” component is one that does not require electrical input to add energy to the information signal. Electrical input may be required for control. Examples include attenuators, fused couplers, multiplexers, circulators, splitters, taps, isolators, WDM fi lters, Bragg gratings, and waveguides.

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