| 摘要 |
PURPOSE:To equally distribute a clock signal of small size and send and receive signals among respective LSIs by inputting a light signal which contains the clock signal from right below a conic groove and inputting it to a core. CONSTITUTION:This circuit is provided with a function which superposes the clock signal on the light signal with wavelength lambda1, transmits it from an optical transmission part 9, and equally distributes the signal to respective transmitting receiving circuits 1-1-1-8, and the light signal from one optical transmission part 9 is propagated in cores 3-1-3-8 arranged radially around the conic groove 6 at the center part of a circular substrate 2 and led to respective receiving circuits 1-1-1-8. The light signal with the wavelength lambda1 which is converged in an optical waveguide 7 provided right below the conic groove 6 reaches the comic groove 6 through a 1st clad 4 and is totally reflected and radially diverged, and made equally incident on and coupled with the respective cores 3-1-3-8. The light signals are propagated in the respective cores 3-1-3-8 as shown by arrows 12-1-12-8 and made incident on the respective optical receiving circuits 1-1-1-8. |
