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

该项目旨在研究一种新型光栅耦合器结构，用于有效偏振和波长无关的光纤-波导耦合。光栅耦合器被广泛用作光纤和光子电路之间的输入/输出接口。商用光纤到平面波导光栅耦合器是偏振和波长相关的。提出的研究项目首先涉及光栅耦合器的广泛数值设计，该耦合器可能同时提供偏振和波长无关特性。叶温妮博士的研究小组将与Optiwave的技术小组合作，Optiwave将为其专业的三维optifdtd和OptiSpice软件提供技术支持，以满足仿真需求。将对器件设计进行严格的仿真，以获得最优的设计参数和器件性能，然后创建设计掩模布局。研究小组计划在不久的将来制造原型设备，以促进Optiwave光子软件的准确性和有效性的验证。如果成功，这个联合项目将为硅光子电路提供一个通用的光栅耦合器。

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.