Patent ID: 6907154
Filing Date: 2005-06-14
Classification: G02B,H04Q

Abstract:
1. An optical switch having a plurality of switch cells, wherein: said optical switch has n inputs (n is a natural number) and m outputs (m is a natural number); said optical switch has a unit size defined as the distance between any two adjacent ones of said switch cells; said optical switch comprises; a substrate having a switch size of K×L (K is an integer satisfying n≦K, and L is an integer satisfying m≦L); first and second mirrors parallel to each other and perpendicular to a principal surface of said substrate; and an optical unit including a plurality of input optical paths for said n inputs and a plurality of output optical paths for said m outputs, said plurality of input optical paths being inclined relative to said first and second mirrors, said plurality of output optical paths being inclined relative to said first and second mirrors; and each of said switch cells comprises a switch mirror provided movably relative to said substrate; wherein said switch mirror can switch between a first condition where incident light passes over the switch mirror and a second condition where light is reflected by the switch mirror.