An optical fiber switch in accordance with an embodiment of the present invention
includes a first plurality of ports, a second plurality of ports, a first plurality
of mirrors disposed on a first surface, and a second plurality of mirrors disposed
on a second surface. Each one of the first plurality of mirrors is individually
controllable to direct light output from a corresponding one of the first plurality
of ports to any one of the second plurality of mirrors. Each one of the second
plurality of mirrors is individually controllable to direct to a corresponding
one of the second plurality of ports light incident on it from any one of the first
plurality of mirrors. Advantageously, optical fiber switches in accordance with
embodiments of the present invention may couple more than a thousand input ports
to more than a thousand output ports with an insertion loss of less than about
3 decibels.