OPTICAL TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a bidirectional optical transmission device that transmits and receives optical signals in two directions by using a single core optical fiber as a transmission medium, the optical transmission device being capable of suppressing interference and crosstalk between an optical signal transmitted to the outside through the optical fiber and an optical signal transmitted from the optical fiber.

SOLUTION: The optical fiber has in a clad 4 a light-reception-side core 3b where the optical signal incident from the optical fiber 11 is guided and a light-emission-side core 3a where the optical signal incident on the optical fiber 11 is guided. The light-reception-side core 3b is separated from the light-emission-side core 3a. Thus, the structure of separating the light-reception-side core 3b from light-emission-side core 3a can prevent the transmit and receive signals from interfering with each other.

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