Compact Lithium-Niobate-on-Insulator Polarization Rotator Based on Asymmetric Hybrid Plasmonics Waveguide
Yiru Zhao, Wenqi Yu, Shuangxing Dai, Jinye Li, Tao Lin, Mingxuan Li, Jianguo Liu
Abstract
We proposed a compact and efficient polarization rotator (PR) based on an asymmetric hybrid plasmonics waveguide (HPW) on the lithium-niobate-on-insulator (LNOI) platform. We focus on the design of rotation angle and balance between the two hybrid modes. The presented device exhibits a polarization extinction ratio as high as 59.58 dB and an insertion loss of 1.44 dB with the rotation length of only 13.7 μm. The fabrication tolerances and a suitable process are also discussed to meet the state-of-art technology.
Topics & Concepts
Lithium niobatePolarization (electrochemistry)Materials sciencePlasmonFabricationInsulator (electricity)Extinction ratioOptoelectronicsWaveguideOpticsPolarization rotatorBirefringencePhysicsWavelengthMedicineAlternative medicinePhysical chemistryPathologyChemistryPhotonic and Optical DevicesPhotonic Crystals and ApplicationsAdvanced Fiber Optic Sensors