| 摘要 |
An optical switch, comprises: a plurality of N input ports (2) ; a plurality of M output ports (24); and a plurality of displaceable beam steering arrangements (1) which, during switching, displace; N being greater or equal to 3 whilst M is greater or equal to 2; the plural number of displaceable arrangements substantially corresponding to either N or M; wherein said displaceable arrangements displace to and from positions of interception of substantially entire beams originating from said input ports and direct said beam on a path to said output port. |
