| 摘要 |
<p>In accordance with the invention, an N channel WDM system is provided with add/drop capability by distributing the N channels among M paths where N < M, filtering each of the M paths through P add/drop filters where M x P = N, and recombining the M filtered paths for transmission. This can be implemented with an M x 1 demultiplexer, tunable Bragg grating filters and a 1 x M multiplexer. <IMAGE></p> |
