Patent ID: 6928206
Filing Date: 2005-08-09
Classification: G02B,G02F

Abstract:
1. An optical switch: wherein, in an interval of inputted light signals being outputted, a laminated structure having two or more nonlinear optical layers and two or more buffer layers alternately laminated is placed to intersect an optical path through which the light signal inputted passes, the laminated structure having multiple specific point regions; an external field is applied to a specific point region of the nonlinear optical layers from a direction vertical to the optical path to thereby refract the inputted light signal at the specific point region of the nonlinear optical layers where the external field is applied; the inputted light signal is outputted in the direction in which the light signal is refracted, and without the external field being applied, the inputted signal light is made to travel straight so that the light signal is outputted and taken out; whereby optical switching is performed.