光学学报, 2019, 39 (3): 0313002, 网络出版: 2019-05-10
W波段电光相位调制器的设计与建模分析 下载: 1111次
Design and Modeling Analysis of W Band Electro-Optical Phase Modulator
集成光学 电光相位调制器 铌酸锂 性能匹配 W波段 光学器件 integrated optics electro-optical phase modulator lithium niobate performance matching W band optical instrument
摘要
W波段(2.73~4 mm)电光相位调制器(EOM)结构具有多参数和设计复杂的特点,参考共面波导传输线理论和EOM理论,结合三维电磁仿真高频结构仿真软件HFSS,对调制器进行有限元分析和计算。针对EOM几何结构中的关键参数,在4个维度上进行模型仿真计算,建立EOM的多维度数学模型。根据仿真模型,得到EOM几何结构参数与主要性能的变化规律,确立EOM的模型结构。通过结构优化,得到频率为100 GHz的EOM模型,调制器速率匹配,阻抗匹配,并且衰减较小。
Abstract
The structure of W band (2.73-4 mm) electro-optical phase modulator (EOM) is characterized by multi-parameters and complex design. Referring to the coplanar waveguide transmission line theory and EOM theory, and combining with the three-dimensional electromagnetic simulation high-frequency structure simulation software HFSS, we carry out the finite element analysis and calculation of the modulator. For key parameters in the geometry structure of the EOM, we carry out model simulation calculation in four dimensions, and establish the multi-dimensional mathematical model of the EOM. According to the simulation model, we obtain the variation rules of geometric parameters and main performance of the EOM, and establish the model structure of the EOM. Through structural optimization, we obtain the 100 GHz speed EOM model with matching speed, matching impedance, and small attenuation.
赵铭明, 何云涛, 苏兴华, 田震, 牛芳. W波段电光相位调制器的设计与建模分析[J]. 光学学报, 2019, 39(3): 0313002. Mingming Zhao, Yuntao He, Xinghua Su, Zhen Tian, Fang Niu. Design and Modeling Analysis of W Band Electro-Optical Phase Modulator[J]. Acta Optica Sinica, 2019, 39(3): 0313002.