Abstract

This paper presents the configurations of a diffraction grating having the function of switching diffraction properties. By combining the polymer stabilized liquid crystal with the specific electrode design, it has the feature of being modulated by external electric field for generating two diffraction modes. This technology could be applied to the fabrication of a three-beam grating which is necessary for the tracking of a rewritable two-wavelength optical head with the monolithic two-wavelength integrated laser diode.

© 2007 Optical Society of America