An optical wiring device includes an electric connecting portion, an optical transmission unit for transmitting an optical signal, and an optical device for conducting an optoelectric conversion. The optical device is provided between the electric connecting portion and the optical transmission unit. The optical device includes at least one of a surface light emitting device, which is modulated by an electric signal supplied through the electric connecting portion, and a surface light receiving device, which converts an optical signal transmitted through the optical transmission unit to an electric signal.

 
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