Silicon Nanowire Polarization Rotator
应用文章
This application note demonstrates how to model a small, passive polarization rotator using RSoft FullWAVE, FemSIM and Multi-Variable Optimization and Scanning Tool (MOST).
The rotator is made from a silicon nanowire with an uneven cross-section. It has three parts: a polarization input (Transverse Electric (TE) mode), a rotation section and an output (Transverse Magnetic (TM) mode). When TE polarized light enters, the device rotates the light’s polarization by 90° at certain points.
In this demonstration, FullWAVE simulates the device and calculates how well the polarization changes (polarization conversion efficiency). The mode solvers, including FemSIM, find the TE and TM modes, and MOST helps find the best design by changing the nanowire’s size. Learn about how RSoft tools can help design effective silicon polarization rotators from the results that clearly show the polarization changes from TE to TM.