Patent ID: 6151147
Filing Date: 2000-11-21
Classification: G02B,H04J

Abstract:
An optical communication apparatus, comprising:a light source to emit light of a wide wavelength band;an optical fiber to transmit said light from said light source; anda plurality of transmitting units and receiving units disposed with a one-to-one correspondence along said optical fiber,wherein each of said plurality of transmitting units includes a transmitting mechanism, the transmitting mechanism having a first wave-branching filter to selectively wave-branch light of a predetermined wavelength, as well as to transmit light of other wavelengths of the wide wavelength band transmitted through said optical fiber, and a circuit breaker to selectively cut-off and transmit light wave-branched by the first wave-branching filter, said first wave-branching filter combines light transmitted by said circuit breaker with light of other wavelengths transmitted through said first wave-branching filter and transmits said combined light, each of said transmitting mechanisms wave-branching light of a different wavelength of the wide wavelength band,wherein each of said plurality of receiving units includes a second wave-branching filter to selectively wave-branch light of a wavelength corresponding to the light of predetermined wavelengths of the first wave-branching filters, and a light receiving element to receive the light of the wavelength wave-branched by the second wave-branching filter, each of the receiving units wave-branching light of different corresponding wavelengths.