| 摘要 |
PURPOSE:To provide an optical circuit parts without an energy loss due to the power distribution of multiple wavelength light by distributing the multiple wavelength light into plural lights having plural different wavelengths without distributing the power of the light of a multiple wavelength. CONSTITUTION:An optical fiber fusion splicing type coupler 4 is connected to an optical fiber 5a on the incident side, a tree splitter 1 dividing an optical power into eight equal parts is connected to the side transmitting the power of light of the coupler 4 through an optical fiber 5b2 and an optical multiplexer 3 is connected to the exit side of the tree splitter 1 through eight optical fibers 5c1-5c8. An optical demultiplexer 2 is connected to the exit side of multi- wavelength light of the coupler 4 through an optical fiber 5b1, the optical demultiplexer 2 distributes the multiple wavelength light into the light of plural different wavelengths without distributing the power of the light of a multiple wavelength, the optical demultiplexer 2 is connected to the optical multiplexer 3 through the optical fibers 5d1-5d8 through which the respective light beams of the respective wavelengths are transmitted, the respective light beams from the tree splitter 1 are combined with the respective light beams of the respective wavelengths from the optical demultiplexer 2 one by one and multiplexed. |
