Investigating Novel Polarization and Wavelength Independent Grating Coupler using Three-Dimensional OptiFDTD

该项目的目的是研究一种新型的光栅耦合器结构，以实现有效的偏振和波长无关的光纤到光波导的耦合。光栅耦合器被广泛用作输入/输出端口，为光纤和光子电路之间提供光学接口。商业上的光纤-平面波导光栅耦合器既是偏振的，也是波长相关的。提出的研究项目首先涉及广泛的数值设计的光栅耦合器，潜在地提供偏振和波长无关的特征。Winnie Ye博士的研究小组将与OptiWave的技术小组合作，后者将为他们的专业三维OptiFDTD和OptiSpice软件提供技术支持，以满足模拟需求。将对器件设计进行严格的模拟，以获得最优的设计参数和器件性能，然后创建设计掩模版图。研究小组计划在不久的将来制造原型设备，以便于验证光波光子软件的准确性和有效性。如果成功，这个联合项目将提供一种在硅光子电路中普遍使用的多功能光栅耦合器。

The proposed project aims to investigate a novel grating coupler structure for efficient polarization andwavelength independent fiber-to-waveguide coupling. Grating couplers are widely used as input/output portsthat provide the optical interfaces between optical fibers and the photonics circuit. The commercialfiber-to-planar waveguide grating couplers are both polarization and wavelength dependent. The proposedresearch project first involves extensive numerical design of a grating coupler that potentially offers both thepolarization and wavelength independence features. Dr. Winnie Ye's research group will team up with thetechnical group of Optiwave, who will provide technical support for their specialized three-dimensionalOptiFDTD and OptiSpice software for the simulation needs. Rigorous simulations of the device design will becarried out to obtain the most optimal design parameters and device performance, followed by design masklayout creation. The research team plans to fabricate the prototype device in the near future to facilitate thevalidation of the accuracy and effectiveness of the Optiwave Photonic Software. If successful, this joint projectwill provide a versatile grating coupler for general use in silicon photonic circuits.