波导开关是光集成回路中很重要的元件。虽然人们已经提出了各种形式的波导开关,但其中大部分器件都很长,并有很强的偏振依赖关系。因为这些器件都是基于电光效应的,而电光效应只引起较小的折射率变 Waveguide switches are very important components in optical integrated circuits. Although various forms of waveguide switches have been proposed, most of these devices are long and have a strong polarization dependence. Because these devices are based on electro-optic effects, electro-optic effects cause only small changes in refractive index