Comparison of Scalar and Vector WFM Method Through the Design of High-Δ Waveguide Lenses
Comparison of Scalar and Vector WFM Method Through the Design of High-Δ Waveguide Lenses
复制标题
通过高 Δ 波导透镜设计比较标量和矢量 WFM 方法
DOI：
10.1109/lpt.2022.3170940
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发表时间：
2022
影响因子：
2.6
通讯作者：
Saitoh Kunimasa
中科院分区：
文献类型：
--
作者：
Sawada Yusuke;Fujisawa Takeshi;Sato Takanori;Saitoh Kunimasa
我们证明了使用波前匹配（WFM）方法设计高折射率差（）波导需要全矢量传播分析。通过对采用标量和全矢量WFM方法设计的高波导透镜对进行比较，实现了对高波导透镜的研究。结果表明，在设计波导透镜时，全矢量波束调频法优于标量波束调频法。最后，我们通过实验证明了采用WFM方法设计硅波导透镜时进行全矢量传播分析的必要性。计算与测量结果吻合良好，在1550 nm波长处，采用全矢量WFM法设计的一对硅波导透镜的插入损耗比采用标量WFM法设计的插入损耗低0.78 dB。
We demonstrate that the high refractive index difference () waveguide design using a wavefront matching (WFM) method requires a full-vector propagation analysis. The investigation was implemented through the comparison of some pairs of high-waveguide lenses designed by a scalar or full-vector WFM method. The results show that a full-vector WFM method is superior to a scalar WFM method for the design of waveguide lenses with theof 20% or higher. Finally, we experimentally demonstrate that the necessity of a full-vector propagation analysis for the design of Si waveguide lenses using a WFM method. Calculation and measurement results agree well and the insertion loss of a pair of Si waveguide lenses designed by a full-vector WFM method is 0.78 dB lower than that designed by a scalar WFM method at the wavelength of 1550 nm.