Optical multi-channel separating filter with electrically adjustable photon crystals

An optical multipath switch having electrically switchable photonic crystals, the switch comprising an optical geometry structure including tunable photonic crystals having long miniaturized needles and acting as high-precision optical mirrors, deformations acting as photonic band gaps capable of being generated selectively in the structure;

• cavities between the needles being filled with nonlinear optical materials or liquid crystals enabling an optical transmission characteristic of the optical geometry structure to be varied up to reflection by disposing first electrodes in the structure and applying a strong electrical field;
• the optical geometry structure being provided with second, divided electrodes for providing separate field guidance in crystal areas for enabling the optical transmission characteristic of the structure to be varied separately in individual crystal areas up to reflection;
• the optical geometry structure being disposed between mirrors of fixed photonic crystals having an orientation so that light hits the optical geometry at a predetermined angle and the light is capable of being coupled in and selectively out via the mirrors.