The parameters of the optical slab glass waveguide (refractive index and thickness of thinfilm) were measured by a new technique for using the prism coupler, i. e., leaky mode method.
由使用棱镜耦合器的一种新技术即漏模法，测量了平板玻璃光波导的参数(薄膜的折射率和厚度)。
2
At the present time, the mainstream optical filter techniques including dielectric thin-film filter, array waveguide (AWG), Fabry-Perot (F-P) filter, fiber Bragg grating (FBG).
目前主要滤波技术有薄膜干涉滤波器、阵列波导光栅(awg)和光纤布拉格光栅(FBG)。
3
An accurate formula is derived for cutoff values of te modes in the symmetric slab optical waveguide with a nonlinear thinfilm.