| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a transmission quality for an optical signal when connecting between WDM (Wavelength Division Multiplexing) networks having different wavelength intervals. <P>SOLUTION: An optical network repeater for connecting a first WDM network for transmitting a WDM optical signal with a first wavelength interval with a second WDM network for transmitting a WDM optical signal with a second wavelength interval larger than the first wavelength interval, has an optical branch device and a wavelength cycle optical filter. The optical branch device branches the WDM optical signal transmitted in the first WDM network to generate an inter-network WDM optical signal. The wavelength cycle optical filter removes wavelength components unnecessary in the second WDM network from the inter-network WDM optical signal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
