MODE Solutions 拥有特征模式计算以及长距离光场传播的各种仿真方法，是一款设计、分析、优化波导结构的理想工具。特征模式计算引擎可以计算任意形状波导中导模的物理特性； 其2.5D varFDTD 可以快速高精度地仿真SOI楔形波导和环形谐振腔等；而特征模式展开法 eigenmode expansion (EME) solver 是仿真长传播距离波导器件，例如模斑尺寸转换器、楔形波导和布拉格光栅等器件的理想方法。-MODE Solutions has a characteristic pattern calculations and long-haul optical field propagation of various simulation methods, is a design, analysis, ideal tool for optimizing the waveguide structure. The characteristic pattern calculation engine can calculate the physical properties of arbitrarily shaped waveguide guided modes　its 2.5D varFDTD can wedge emulation SOI waveguide ring resonator and other fast with high accuracy　and the characteristic mode expansion method eigenmode expansion (EME) solver is long propagation simulation distance waveguide devices, such as the ideal way to spot-size converter, and wedge-shaped waveguide Bragg grating devices.