The characteristic of arrayed waveguide gratings is analyzed with the linear systems theory and the optical grating equation is educed.
运用线性系统理论分析了阵列波导光栅的模场特性，导出器件传输的数学模型即光栅方程。
The double grating monochromator structure of pure rotational Raman lidar is introduced and the corresponding lidar equation is deduced.
介绍了双光栅转动拉曼激光雷达的双光栅单色仪结构，并推导了相应的雷达公式。
A theoretical equation of surface wave grating diffraction on liquid metal surface is established based on hydrodynamic equations and grating diffraction principle.
以流体动力学方程和光栅衍射原理为基础，得到了研究液态金属表面特性的理论方程序。
The strain sensitivity characteristic of long-period fibre grating (LPFG) was studied by coupled-mode theory and the strain sensitivity analytic equation of the resonant wavelength was deduced.
对长周期光纤光栅传输谱谐振波长的应变特性用耦合模理论进行研究，推导出谐振波长应变灵敏度的解析表达式。
The reflection property of the fiber tilted-grating is discussed by the structure and coupled-wave equation of the fiber tilted-grating.
利用倾斜光纤光栅的结构特点和光栅中光波的耦合模方程，分析研究了倾斜光纤光栅的反射特性。
The reflection property of the fiber tilted-grating is discussed by the structure and coupled-wave equation of the fiber tilted-grating.
利用倾斜光纤光栅的结构特点和光栅中光波的耦合模方程，分析研究了倾斜光纤光栅的反射特性。
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