Ryan J. Patton and Ronald M. Reano, “Polarization rotation utilizing Berry’s phase in asymmetric silicon waveguides,” in Frontiers in Optics / Laser Science (FiO): 2018, OSA Technical Digest (online) (Optical Society of America, 2018), paper JW3A.2.
Abstract: We present a method to achieve polarization rotation in asymmetric silicon waveguides using Berry’s phase. By exploiting periodic in-plane and out-of-plane sections, we achieve 90° polarization rotation in the presence of linear birefringence.