| 摘要 |
<p>A re-configurable OADM (ROADM) is proposed, suitable for being inserted at an optical multichannel transmission line and comprising a multiplexer and a demultiplexer. The demultiplexer is adapted to receive a multiplexed optical signal comprising a plurality of optical channels and, upon demultiplexing thereof, obtain at egress ports of the demultiplexer separate egress optical channels. The multiplexer is adapted to receive at its ingress ports separate ingress optical channels for further multiplexing thereof. At least one egress port of the demultiplexer and at least one corresponding ingress port of the multiplexer relate to one and the same corresponding optical channel. The ROADM is characterized in that the at least one egress port is connectable with its corresponding ingress port by an external removable optical connector, thereby allowing conversion of the corresponding optical channel from a through state to an add/drop state and vice versa.</p> |
