POLARIZATION SWITCHING SYSTEM

摘要

a substrate(10); a first mirror layer(20) formed by stacking a low refractive index media and a high refractive index media in turn on the substrate(10); a second mirror layer(40) formed by stacking a high refractive index material and a low refractive index material in turn; and a spacer layer(30) formed with Kerr material between the first and the second mirror layer(20,40). The reflectance of the first mirror layer(20) is 95 precent or 100 precent and the reflectance of the second mirror layer(40) is 5 precent or 30 precent and the initial tuning phase of the spacer layer(30) is m +t where m is an integer and t is 0.7 or 0.8.