| 摘要 |
PROBLEM TO BE SOLVED: To prevent deterioration of optical amplification characteristics by guiding light provided to one port of a light input port group to one port of a light output port group with a wave-guiding path network, and providing an optical part to a specified point of the wave-guiding path network. SOLUTION: In an optical fiber amplification device, optical couplers 131 and 140 and WDMs(wavelength division multiplexer) 134 and 137 are made into optical wave-guiding paths, and these optical couplers 131 and 140 and WDMs 134 and 137 are integrated in one optical wave-guiding path device. The optical wave-guiding path device is provided with ports P1-16 connected with 16 optical fibers, respectively, and the light provided to one port of a light input port group, P1-8, is guided to one port of a light output port group, P9-16, and an optical connector and an optical part, etc., that are members of the optical fiber amplification device are provided to specified points of a wave-guiding path network that guides the light. |
