| 摘要 |
<p>An optical switch (10) includes light input/output ports (1,2), each having a port group (110,120) of inputting/outputting a light, an optical path manipulation unit (5) having optical path switching units (5a,5b,5c) of switching an optical path of a light from an input port in the port group to an optical path toward an output port in the same port group according to each of the light input/output ports, and a condenser lens (6) condensing light from the light input/output ports on the optical path switching units corresponding to the port groups and optically-couples the light input/output ports with the optical path manipulation unit. The input/output optical paths of the light input/output ports with respect to the condenser lens are parallel to each other between the ports in the same port group and are unparallel to each other between the ports in the different port groups as seen from a direction perpendicular to a port arrangement direction.</p> |
