The Optoelectronic reference article from the English Wikipedia on 24-Apr-2004
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Optoelectronic

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The word optoelectronic descibes a device that functions as an electrical-to-optical or optical-to-electrical transducer, or an instrument that uses such a device in its operation.

Examples of devices used in optical fiber communications.

Electro-optical is often erroneously used as a synonym.