| 摘要 |
<p>The present invention relates to a triplexer, comprising a first three-waveguide coupler and a second three-waveguide coupler, and a path difference adjustment unit consisting of three-waveguides connected between said first three-waveguide coupler and said second three-waveguide coupler. The triplexer of the present invention splits three wavelength bands at once to thereby reduce the size of the whole device, and to achieve less optical loss, high crosstalk, and flat frequency response characteristics at a wide wavelength band.</p> |
