Patent ID: 6907198

Claim:
A wavelength division multiplexed optical interconnection device comprising: a plurality of optical signal Input units mach comprising a plurality of optical receivers for respectively receiving a plurality of lights of different wavelenghts and converting said lights of different wavelengths into first electric signals, said optical signal input units being placed in L-shaped form or C-shaped form across sides adjacent to a peripheral portion of a main surface of a semiconductor substrate; a signal processing integrated circuit having a logic circuit for effecting a path switching process on the first electric signals delivered from said plurality of optical receivers and for generating second electric signals, said signal processing integrated circuit being placed in a central portion of the main surface of the semiconductor substrate; and a plurality of optical signal output units each comprising a plurality of optical emitters for respectively converting the second electric signals generated by said signal processing integrated circuit into light, an optical multiplexer for wavelength-multiplexing the plurality of lights of different wavelengths emitted from the optical emitters, and fibers for transmitting the wavelength-multiplexed light sent from the optical multiplexer to the outside, said optical signal output units being placed in inverted L-shaped form or C-shaped form so as to be opposite to the plurality of optical signal input units across the sides adjacent to the peripheral portion of the main surface of the semiconductor substrate.