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diffused coupler

A diffused coupler is an optical coupler used to combine or split different wavelengths transmitted in an optical fiber. In contrast to biconical taper couplers and bending couplers, diffused couplers have a low attenuation. Diffused couplers are manufactured by diffusing grooves into a glass substrate, in which the modes are then guided.

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Englisch: diffused coupler
Updated at: 18.04.2009
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