Accurate dipole radiation model for waveguide grating couplers
Accurate dipole radiation model for waveguide grating couplers
复制标题
波导光栅耦合器的精确偶极子辐射模型
DOI：
10.1016/j.rinp.2023.106526
复制
发表时间：
2023
影响因子：
5.3
通讯作者：
Liu Z
中科院分区：
文献类型：
--
作者：
Liu Z
An analytical theoretical model for the waveguide grating coupler is developed and applicable to practical deep gratings. The grating-assisted input coupling efficiency is calculated by considering the reciprocal out-coupling problem. The deep grating structure is modelled as an optical layer filled with polarization dipole sources, and the scattered fields are then calculated using the associated Green’s functions and taking into account the multiple reflections and interference from the adjacent layers. The joint loss between the grating region and the waveguide is also considered. Comparison with numerical simulations shows very good agreement and validates the accuracy of the analytical model. The model explicitly describes the importance of multilayer interference of the scattered fields and guided-mode joint loss on the total grating-assisted coupling efficiency and can be used for practical waveguide grating coupler design with negligible computation workload.
用于高灵敏度生化传感器的波导耦合光栅
影响因子：
8.4
作者：
V. Sychugov;A. Tishchenko;N. Lyndin;O. Parriaux
通讯作者：
O. Parriaux
用于集成光学的薄光栅耦合器：实验和理论研究。
影响因子：
1.9
作者：
D. Dalgoutte;C. Wilkinson
通讯作者：
C. Wilkinson
边界反射引起的高折射率对比度平面波导散射损耗的干扰效应。
影响因子：
3.6
作者：
J. Schmid;A. Delâge;B. Lamontagne;J. Lapointe;S. Janz;P. Cheben;A. Densmore;P. Waldron;D. Xu;K. P. Yap
通讯作者：
K. P. Yap