Patent ID: 7203392
Filing Date: 2007-04-10
Classification: H04B,H04J

Abstract:
1. An optical apparatus for bidirectional optical communication comprising: an optical transmission section configured to generate a signal light in accordance with a data signal inputted to a data input port, to thereby transmit the signal light as a transmitted light; an optical reception section configured to receive a light inputted thereto and having a wavelength different from that of the transmitted light from said optical transmission section, to thereby regenerate said light inputted thereto as a data signal to be outputted from a data output port; an apparatus, including therein an optical isolator, and configured to output a light inputted thereto, by way of said optical isolator; a first optical component, including a first port, a second port and a third port, and configured to allow a light inputted to said first port to output from said third port, and to allow a light inputted to said second port to output from said first port; a second optical component configured to multiplex the transmitted light output from said optical transmission section with the light outputted by said third port of said first optical component, to thereby output the multiplexed light into said apparatus; and a third optical component configured to separate the light outputted by said optical isolator of said apparatus into separate lights in accordance with a wavelength difference, to thereby allow the separated lights to output toward the second port of said first optical component and toward to said optical reception section, respectively.