| 摘要 |
<p>A ROADM device for realizing the monodirectional and polydirectional wavelength dispatch in the optical transmission system DWDM field, includes: N groups optical preamplifiers, coupler unit, transmission WSS and optical power amplifier unit, the N is a natural number which is greater than or equal to 1, and represents one of the N directions, the device also contains down-road WSS and distribution unit, adjustable filtering and receiving unit RX, adjustable up-road TX and up-road wavelength multiplexer and distribution unit. It mainly solves the technical problems that the WB-realized monodirectional manner can not smoothly expand and does not support polydirectionally re-configurationable add and drop multiplex function in the prior art, and using optical switch array to realize the polydirectional manner costs a lot. It uses WSS to realize the monodirectional and polydirectionally ROADM function, and reaches the wavelength dispatch request of intelligentizing DWDM device, and supports the smoothly expanding and the smartly upgrading function, saves the original investment.</p> |
