| 摘要 |
PURPOSE:To increase speed for transmission and further to prevent an waveform from being dull by increasing fan-out by providing an optical waveguide, which can bidirectionally transmit an optical signal between a pair of end faces, and one directional coupling means for inputting / outputting the optical signal to the optical waveguide at least while being provided on the side face. CONSTITUTION:A bus line is composed of an optical signal transmitting member and equipped with a pair of end faces and side faces linked to a pair of end faces. An optical waveguide 11 is provided to bidirectionally transmit the optical signal between a pair of end faces, and one directional coupling means 12 is provided on the side face at least to input / output the optical signal to the optical waveguide 11. Therefore, the optical signal multiplexing the wavelength can be bidirectionally transmitted between a pair of end faces of the optical waveguide 11. Thus, a signal waveform without any distortion can be obtained, and high-speed data transmission is enabled. |
