| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a WDM-PON system that flexibly responds to the band needs of ONUs. <P>SOLUTION: The WDM-PON system has: a plurality of subscriber terminals and a station-side terminating device; a wavelength multiplexer/demultiplexer that multiplexes up-signals from the plurality of subscriber terminals and wavelength-splits a down-signal from the station-side terminating device; and a splitter that multiplexes the down-signal from the station-side terminating device and power-splits the up-signals from the plurality of subscriber terminals. The station-side terminating device has a plurality of transmission units and a plurality of receiving units. Each of the plurality of transmission units includes a variable wavelength light source. Each of the plurality of receiving units includes a variable wavelength filter in the pre-stage. The plurality of variable wavelength light sources respectively transmit optical signals of a plurality of wavelengths by time division. The station-side terminating device sets each transparent wavelength of the plurality of variable wavelength filters while following each variable wavelength light source. <P>COPYRIGHT: (C)2011,JPO&INPIT |
