Patent ID: 8401390

Claim:
An optical connecting apparatus comprising: a light source outputting an optical signal indicating a plurality of wavelengths which correspond to a plurality of transmission channels; an optical transmission section and an optical reception section being mounted with integrated circuits and being connected to each other through an optical line; and a signal converter disposed between the optical transmission section and the optical reception section and connected to the respective sections through the optical line, and configured to convert a phase modulated signal into an intensity modulated signal according to transmission information modulated on the phase modulated signal, wherein the optical transmission section includes: an optical modulator unit which generates the phase modulated signal by implementing phase modulation with optical signals from the light sources, each which has a different wavelength, by using a plurality of optical modulators; and a multiplexer which multiplexes the phase modulated signals from the optical modulator unit and outputs the multiplexed phase modulated signals to the signal converter through the optical line, and the optical reception section includes: a demultiplexer which separates the intensity modulated signal from the signal converter according to the transmission channels; and an optical reception unit which converts the intensity modulated signals from the demultiplexer into electric signals.