Light Control and Manipulation
In current technologies that pass information along optical fibers, it is necessary to transform the information from optical into electronic signals for actual manipulation of the signal, including routing, switching, and processing. If optical components could be constructed to reliably switch, amplify, route, and modulate optical signals, then it would be possible to construct an all-optical communications system. Moreover, if two light signals could be controllably combined to give a third one, we can envision a full computational scheme based only on light. In such a scheme, the optical computer would store its information on an optical disk or in a holographic or optical crystal, and the manipulation of data, ...
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